[PDF] - LOW VOLTAGE BUSINESS UNIT CATALOGUE CONTENT 2 ABOUT US 5 DISMOD PDF Document

SLIDE 1

LOW VOLTAGE BUSINESS UNIT CATALOGUE

SLIDE 2

SLIDE 3

CONTENT

2 ABOUT US 5 DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD 21 400/230 VAC AND 48...220 DC AUXILIARY SERVICES SUPPLY CABINETS 27 CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6) kV POWER STATIONS

1

SLIDE 4

Evolving year by year as a team relied on passion and trust as fundamental values, we succeeded to show that, based on the high technical level of our products, we can develop the best solution to our customer’s requests.

Electroalfa is a well known fjrst-class solutions provider for electrical power distribution with 20 years of experience in fjeld. The company manufactures low and medium voltage distribution equipment for electrical power systems, and also steel manufacturing parts. The company can manage complex projects as general contractor providing technical support, maintenance and after sales services. The company develops turn key projects for electrical power production from renewable sources. Electroalfa means today 10 divisions, 10 sales representatives, 4 workshops, 3 modern factories and a strong brand based on solid experience, qualifjcations and enthusiasm of 350 specialists.

Our constant focus for quality made us keep in close plan the improvement of facilities, technical equipment and

ther specifjc endowments of
ur activity.

About us

2

ABOUT US

SLIDE 5

Product portfolio Low voltage business unit

We are not just quality equipment producer and supplier, which offers safety, comfort and ease in use, but we are long-term partners for

ur clients.

The desire for producing high level products, in line with the last technical improvements made Electroalfa to implement and keep up to date an Integrated Management system, which meets SR EN ISO 9001:2008, SR EN ISO 14001:2005, SR OHSAS 18001:2008, SR ISO/CEI 27001:2006 and SA 8000:2008, standard requirements, system which has been evaluated and certifjed by SRAC CERT Bucuresti, respectively IQNet (SA 8000). We also hold:

The National Commission for

Nuclear Activities Control (CNCAN) authorization for manufacturing on the nuclear fjeld;

National Authority for Energy

Regulation (ANRE) A, B, C1B, C2B, E1, E2, F in energy fjeld certifjcation;

Accept as agreed supplier for

Transelectrica, Electrica and E-on Moldova;

Romanian Railway authority

(AFER), Romanian Civil Aeronautical Autority (CAA) and Romanian Naval Authority (ANR) authorized;

authorized by Agriculture, Forests

and Rural Development Ministry for land improvement activities (building and installation works);

approval from Constructions

Technical Council of the Transport, Constructions and Tourism Ministry.

Based on a strong research activity, we provide innovative, safety, high quality products and services for our clients. Electroalfa spirit gives life to each product. Low Voltage Business Unit provides for the customers a full range of main and secondary distribution switchboards up to 5.000A (Power Center and Motor Control Center), DISMOD type, auxiliary services AC and DC cabinets, industrial automation and control switchboards, protection, signalling, control and automation panels for 110/20(6) kV power stations.

We establish long-term action plans with daring objectives, which are carefully coordinated and implemented by personnel with a long experience in electrical fjeld. The relationships with our partners are the human expression of the technical solutions proposed. For putting into work of our plans we have developed partnerships with the most important companies working on the electrical installations fjeld. 3

ABOUT US

SLIDE 6

SLIDE 7

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD

PCC&MCC, In≤5000A

Low voltage distribution switchboard

MCC, In≤3200A Low

voltage distribution switchboard (legacy- available only for after sales services and upgrades of installed base)

5

SLIDE 8

DISMOD-T3 is the newest and most performing product of DISMOD family; represents the optimal solution for a wide range

f low voltage applications in energy, infrastructure, industry and

buildings.

DISMOD-T3 In≤5000A Low voltage distribution board

The special performances of this distribution board are certifjed through type-tests assemblies (TTA), in accordance with EN 60439-1 European standard. The tests were carried out in independent testing laboratories from Romania, in most stressful requirements, with most constraints. Therefore we certify the well functioning of the distribution boards, practically for any

application. A tested electric device

provides the guarantee of verifjed technical solutions, optimal internal architecture, assembly continuous running, within maximum safety condition and having the possibility

f further extensions with minimum

intervention.

General presentation

DISMOD-T3 distribution board generation represents a new concept offering solutions in power distribution, automation and centralised motors control for a wide range of application within the following fjelds: energy, infrastructure, industry, buildings. Depending on the application’s particularities and the customers’ requests Electroalfa offers complete solutions including, distribution and/or centralized motors control, automation, (automatic source changeover, centralised process monitoring and/or control, data communication etc.) and special motor starters (softstarters, AC and DC variable speed drive, special electrical equipment actuations, etc.). The cubicle is completely realized within the own production areas, using latest technology and facilities, highly productive. For all the applications, an experimented team, up-to-date to the latest achievements in the fjeld and supported by a professional system, CAD-CAM, makes available for the client modern, maximum reliability and service continuity, highly fmexible solutions. Together with high quality products, we offer to our clients technical assistance for installing and commissioning, personnel training, maintenance and after sales services.

The DISMOD-T3 distribution board represent the perfect combination between technical performances („top” technical parameters, quality, reliability, fmexibility, modular technology, etc.) and economic effjciency.

6

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 9

– Management of modifjcations during the project is simplifjed by interchangeability of FUs and the fact that they can be cabled

utside the switchboard;
fast and easy installation –

provides effjcient and simple installation solutions and

ffers important facilities for

connections;

personnel safety – ensured

by optimal placement of electrical equipment, use of mechanical interlocks, separation of internal functional units and the equipotential achievement of the whole metal frame;

reliability – proved by type-test

certifjcation (TTA), of our solutions by independent laboratories;

(*) conditioned values by the specifjc electric equipment for each application.

Technical data Installation indoor Ambient temperature for operation −5°C...+40°C Ambient humidity maximum 50% la +40°C Ambient temperature during transport and storage –25°C...+55°C, maximum +70°C, for 24 h Degree of pollution 3 Overvoltage category III Operational altitude maximum 2000m above sea level Electromagnetic environments Type A Together with the new technical solutions and the improvements used for the building-up of this new generation of switchboards, we succeeded to realise a product which completely responds to the following requests:

fmexibility – Equipment is

chosen according to operating, maintenance, upgrading, layout and budget requirements which can be contradictory. The wide range of solutions

ffered by DISMOD T3 in terms
f dimensions, connection

type, installation mode, service rating, combination possibilities, equipping reserve space at a later stage, including for fjxed feeders, enables it to meet project requirements; Electric characteristics Rated voltage (Ue) maximum 690V (*) Rated insulation voltage (Ui) 1000V Rated impulse withstand voltage (Uimp) 8kV Rated frequency 50/60Hz (*) Rated currents (In)

main busbars

5000A

distribution busbars

700/1000/1500A Rated short-time withstand current (Icw/1s)

main busbar

100kA

distribution busbar

65kA Peak current (Ipk)

main busbars

220kA

distribution busbars

143kA Rated diversity factor 1 RInternal arc withstand current 80kA/0,3sec

easy maintenance – allows the

total or partial reconfjguration

f a column, drawer checking

(including the electrical equipment within the drawer), without switching off the switchboard. 7

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 10

Mechanical Characteristics Degree of protection IP41(IP54 by request) Form 3a/3b/4a/4b Materials category I Seismic behavior 0,5g; 1÷35Hz; biaxial; 20s Column weight

feeder / bus-tie

700÷850kg

distribution

350÷550kg Sizes In = maxim 3200A

height (H)

2.200mm

width (W)

300÷1.200mm

depth (D)

700mm Number of drawers per column maximum 30 Sizes In = 4000/5000

height (H)

2.200mm

width (W)

300÷1.200mm

depth (D)

900mm Plug-in device, mounted on a fjxed support

plug-in kit is mounted on a fjxed

support (crosspieces, mounting panel, etc.);

the compartment is equipped

with front door or plate (plain or dedicated). Chassis withdrawable device

the chassis provides the following

functional positions:

working position "plug-in";
testing position "test";
cut-off position "draw-out";
"withdrawn" position.
the enclosure is equipped with

front door or plate. Withdrawable drawer S1, S2 and S3 types

The drawer is used to make up a

FU consisting of several mechanically attached devices, that can assume the “plug-in / test / draw-out / withdrawn” positions, allowing the padlocking procedures and incorporating the human interface elements on the front panel;

there are 4 (four) functional

positions:

working position "plug-in";
testing position "test";
cut-off position "draw-out";
"withdrawn" position .
pre-triggering and blocking

procedures may be provided.

Switchboard architecture

Column is the basic unit of DISMOD-T3 switchboard. Each column is prepared for mounting and connecting the functional units needed for application and for future extensions or modifjcations.

Functional units

A functional unit represents an electric and mechanical device assembly contributing to realise the same function. The following functional units are available: Fixed device (devices) mounted

n fjxed support
the device (devices) is mounted on

a fjxed metallic support (crosspieces, mounting panel, etc.);

the compartment is equipped

with front door or plate (plain or dedicated). Withdrawable drawer S1/3, S2/3 and S1/2 types

Economic solution for simple or

small power circuits; the width of the drawer is 1/3, 2/3 or 1/2 of the width of the column;

Same functions and positions as

S1-3 type drawers;

functional positions are achieved

with a special switch. Disconnectable unit equipped with fuse switch

fuse switch is mounted on a

support, equipped with upstream plug-in clamps for connection with the distribution busbars. “plug-in” and “withdrawn”;

“plug-in” and “withdrawn” are

the only possible positions;

external cables connection is

made directly on the fuse switch terminals;

fuses access is possible only with

the switch in “open” position; the accessories used are offered by the fuse switch provider. 8

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 11

Column architecture

Column is the basic unit of any DISMOD T3 distribution board. It houses the functional units and the busbars. In a DISMOD-T3 switchboard following applications can be implemented in a column:

distribution feeder (incoming/
utgoing);
motor control feeder;
automatic capacitor banks;
horizontal withdrawable surge

arrester section;

other applications (metering and

measurements, LV/LV transformers, automation systems). Regardless of the application, the column of a DISMOD-T3 switchboard is divided into 4 partitioned zones:

main busbar area (position 1) –

situated in the top rear part of the column for In≤ 3200A or in the rear part for In=4000A/5000A;

switchgear area (position 2) –

located in the front part of the column; the space designated to each functional unit is vertically defjned as a number of 175mm high modules;

distribution busbar area (position 3)

– always at the rear of switchgear area;

cables connection area (position 4)

– located in the right-side area of the column. 9

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 12

Frameworks, cover panels

The framework of a DISMOD T3 column consists of vertical frames and horizontal crosspieces forming a shock resistance and rigid assembly. The framework receives various types of panels:

front doors/ panels, entirely or

partially, with or without cuttings (1);

rear door/panel, with ventilation

grid (4);

plain side panels (2);
top roof (3);
bottom plate with/ without cable

access (9);

devices mounting plate (7);
partitioning panels (8);
front ventilation grid (10);
mounting accessories (6).

10

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 13

Sizes

11

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 14

Pos. L1 L2 L3 A(*) 1. 500 600 700 – – – 800 900 – – Designation Incoming feeder/ bus-tie column 1000 – 1200 – – – – – – – – 700 900 700; 900 900 900 900 2. Column with fjxed device

n fjxed support FU

– – – – 800 900 700; 900 L4 – – – – – – – – 3. Column with withdrawable drawer FU – 800 – 900 – 700; 900 – 4. Column with withdrawable device

n chassis FU

– 800 900 – 700; 900 – 5.

Column with withdrawable drawers FU combined with withdrawable device on chassis FU

– 800 900 – 700; 900 – 6. Column with disconnectable unit with fuse switch FU – 1200 – 700; 900 – 7. Main busbar riser column – – – 700; 900 300 400 500 600 700 800 900 – 1000 1000 – – 1200 1200 700; 900 – 8. Various applications column –

(*) Depth D=700mm is valid for In≤2500A and depth D=900mm is valid for In>2500A.

12

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: DISMOD-T3 In≤5000A low voltage distribution board

SLIDE 15

Motor control center DISMOD switchboard, with its modular structure and withdrawable units represents the optimal solution in electrical distribution and motor control applications in large industrial, tertiary and infrastructure sites.

MCC-DISMOD In≤3200A low voltage distribution switchboard

All the tests were realized in independent laboratories from Romania and Germany, in most stressful requirements, with most constraints. Therefore we certify the well functioning of the distribution boards, practically for any application. A tested electric device provides the guarantee

f verifjed technical solutions,
ptimal architecture, functioning

in maximum safety condition and having the possibility of further upgrades with minimum intervention. specialists may contain also complex technical solutions including functional units for automation (automatic source changeover, centralized control, processes control and monitoring, data communications, etc.) and electronic devices (softstarters, AC

r DC variable speed drives, special

electrical equipments, etc.). Together with high quality products, we offer to our clients technical support for installing and commissioning, training courses for customer’s personnel, maintenance and after sales services. The special performances of this distribution board are certifjed through type-tests assemblies (TTA), in accordance with EN 60439-1 European standard

previsions. DISMOD successfully

passed both the resistance test under the condition of the energy arc produced by an internal fault, according to the EN 61641 standard, and the one related to electromagnetic compatibility (EMC), according to SR EN 60439/A1 standard. The DISMOD high reliability degree has been confjrmed by the successful running of the tests for checking the behaviour within climatic cycle, protection fulfjlment and the response to Romanian specifjc seismic disturbances. Through the certifjcation no. CAA- GCG-MI/P2006001878/13.07.2006, ENEL Italia acknowledges the qualities and the performances

f this board and confjrms the

acceptance of our company among the ENEL agreed producers.

General presentation

DISMOD is a low voltage distribution board with modular structure representing the best solution for industrial processes due to its high level of adaptability, fmexibility and continuity of service. The cubicle is completely realized within the own production areas,

utfjtted with latest technology and

high productivity equipments and facilities. For all the applications, an experimented team, up-to-date to the latest achievements in the fjeld and supported by a professional system, CAD-CAM, makes available for the client modern, fmexible, maximum safety and operational continuity techniques. According to the application’s particularities and to the client’s requests, the technical design realized by the Electroalfa

(legacy - available only for after sales services and upgrades of installed base)

13

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 16

Electroalfa solutions can be characterized by:

fmexibility – management of any

changes which may occur during the project is simplifjed by the interchangeability of the functional units and the fact that they can be cabled outside the switchboard;

ease of installation – provides

effjcient and simple installation solutions and offers important facilities for cable connections ;

reliability – the certifjcation,

through type-tests assemblies (TTA) and resistance to the action

f internal arc, of our solutions

by independent laboratories in Romania and Germany;

personnel safety – optimal

placement for electrical equipment, use of mechanical interlocks, separation of internal functional units and performing the whole metallic structure equipotential;

easy maintenance – allows the

total or partial reconfiguration

f a main circuit, withdrawable

devices checking (including the electrical equipment within the slide-box), without switching off the section. Electric characteristics Rated voltage (Ue) maximum 690V (*) Rated insulation voltage (Ui) 1000V TRated impulse withstand voltage (Uimp) 8kV Rated frequency 50/60Hz (*) Rated current (In)

main busbars

3200A

distribution busbars

630/1000/1500A Rated peak current (Ipk)

main busbars

176kA

distribution busbars

105kA Protection of persons against internal arcs 80kA/0,3sec

(*) conditioned values by the specifjc electric equipment for each application.

DISMOD distribution board represents the perfect combination between technical performance (‘top’ technical parameters, quality, reliability, fmexibility, modular technology, etc.) and economical effjciency.

Technical data Installation indoor −5°C...+40°C –25°C...+55°C, maximum +70°C, for 24 h Degree of pollution 3 Overvoltage category III Altitude maxim 2000m Electromagnetic environment Type A Relative humidity Ambient air temperature • operation

storage

maximum 50% up to +40°C, non condensing 14

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 17

Mechanical Characteristics Degree of protection IP21/31/41 (IP54 by request) Form 3a/3b/4a/4b Materials category I Seismic behavior 0,5g; 1÷35Hz; biaxial; 20s Average weight per section

feeder/coupling section

700÷850kg

distribution section

350÷550kg Dimensions

height (H)

2.200mm

width (W)

300÷800mm

depth (D)

1.100mm

Cubicle architecture

The column represents the basic unit of any DISMOD switchboard. Regardless of application, columns are divided into 4 fully partitioned zones:

main busbar area (position 1) —

located in the rear upper part of the column;

switchgear area (position 2) —
ccupies the front side of the

section; the space designated to each functional unit includes the volume required for proper operation, safety perimeter, connections and protection against direct contact; the functional unit area is defjned vertically by a number of modules;

distribution busbar area (position 3) —

situated in the rear part of the switchgear area;

cables connection area (position 4) —

located in the rear lower part of the column. 15

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 18

The following functional units types are available: Fixed device (one or many) mounted on fjxed support

the fjxed device (devices) is

mounted on a fjxed support (cross-pieces, mounting panel, etc.);

the compartment is equipped

with front door or plate (plain or dedicated) . Plug-in device, mounted on a fjxed support

plug-in kit is mounted on a fjxed

frame (cross-pieces, mounting plate, etc.);

the enclosure is equipped

with front door or plate (plain or dedicated). Withdrawable device

the chassis provides the following

functional positions:

working position “connected”;
testing position “test”;
cut-off position “draw-out”;
“withdrawn” position;
the enclosure is equipped with

front door or plate. Withdrawable drawer

the device(devices) is mounted
n a mobile metallic frame called

“drawer”;

the drawer has 4 functional

positions:

working position “plug-in”;
testing position “test”;
cut-off position “draw-out”;
“withdrawn” position;
pre-triggering and blocking

procedures may be foreseen. Depending on the application, the functional units can be used for:

Metering
Motor starter
direct-on-line (DOL);
star-delta;
softstarter type;
variable speed drive starter (AC
r DC).
Distribution
primary;
secondary.
Automation
automatic source changeover;
centralized control;
process monitoring and control;
communications.

Functional units

The range of DISMOD functional units covers all needs in terms of installation mode, withdrawability, form or service rating. Dimensions are standardised for each type of device installed and expressed in 175 mm high modules.

Frameworks, cover panels

The structure of each column consists of a vertical metal frame and horizontal cross-pieces forming a shock-resistant and rigid assembly that cannot be deformed. The framework can receive, regarding the application, various types of panels:

front doors (complete or

dedicated partial door), drawer front panel, front plates with or without cuttings (1);

rear door/panel, with ventilation

grid (5);

plain side panels (2);
top roof (3) with fmap

(4);

bottom plate with/ without gland

plates (9);

mounting accesories (7, 8 10 6);

Inter-column and front-rear separations complete the partitioning of each column. 16

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 19

Withdrawable functional unit

The drawer is used to make up a FU consisting of several mechanically attached devices, that can assume the “plug-in / test / draw-out / "withdrawn” positions, allowing the padlocking procedures and incorporating the human interface elements on the front panel. Power circuit connection to the distribution busbars and the auxiliary circuit connection are made through special connectors. The drawer movement is performed using special keys (1, fjg 1) and (3, fjg 3). Following functional positions are possible: “PLUG-IN” position

Power and auxiliary circuit are

connected;

Drawer is mechanically blocked.

Status indicator (2) is in ‘I’ position. “TEST” position

Power circuit is disconnected;
Auxiliary circuit remains

connected;

Drawer is mechanically blocked.

This position is reached from “Connected” position inserting the special key (1, fjg 1) in its seat and moving it counter-clockwise. “DRAW-OUT” position

Power and auxiliary circuits are

disconnected;

Drawer is mechanically blocked.

This position is reached from ‘Test’ position inserting the special key (3, fjg 3) in its seat and moving it counter-clockwise. When the slide- box. Status indicator is in ‘O’ position. “WITHDRAWN” position This position can be reached from ‘Test’ position by pressing simultaneously the buttons on the drawer handles (position 4). If required, the drawer may be mechanically blocked in the ‘Withdrawn’ position, this option providing the following advantages:

visible signalling of the drawers

which are currently in this position;

avoiding possible accidents at

work due to incomplete withdrawal of the drawer, combined with its signifjcant weight;

missing space for withdrawn

drawers storage. Depending on the size of the electrical equipments which will be mounted, 3 drawer sizes are available: Drawer S1 – h=1M (module) Drawer S2 – h=2M Drawer S3 – h=3M

Note: drawer height is expressed through a number of modules of 175mm.

Depending on the circuit type and the main electrical characteristics of the consumer, withdrawable drawers allow the following confjgurations: Drawer S1

distribution (feeder): maximum

250A

motor starters
direct-on-line (DOL): maximum

30 kW

direct-on-line and reversing

(DOL-REV): maximum 15 kW Drawer S2

distribution (feeder): maximum

630A

motor starters:
direct-on-line (DOL): maximum

200 kW

direct-on-line and reversing

(DOL-REV): maximum 90 kW

star-delta starter (SD): maximum

75 Kw

applications in special

confjgurations with In ≤ 630A Drawer S3

distribution (feeder): maximum

630A

motor starters
direct-on-line (DOL): maximum

250 kW

star-delta starter (SD): maximum

110 Kw

applications in special

confjgurations with In ≤ 630A

Note: Motor starters from above are for:

utilization category AC-3;
rated voltage 400-415V/50 Hz;
type 2 coordination.
Fig. 1
Fig. 2

Fig.3

Fig. 4

Status indicator is in “T” position. 17

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 20

Compartments

The column can be organized with compartments, each one containing the following elements: Depending of the equipment which will be installed, there are 4 available sizes for compartments:

Compartment C1 – compartment

height h= 2M;

Compartment C2 – compartment

height h= 3M;

Compartment C3 – compartment

height h= 4M;

Compartment C4 – compartment

height h= 5M.

Note: compartment height is expressed in number of modules, module height being M = 175 mm.

Depending on circuit type, main electrical equipment mounting position and electrical characteristics of the load, Electroalfa recommends the following confjgurations:

distribution (feeder): maximum

800A;

motor starter
direct-on-line (DOL): maximum

450 kW;

star-delta (SD): maximum

315 kW;

softstarter: maximum 250 kW;
variable speed drive:

maxim 160 kW.

Note: The recommended confjgurations for starters are :

utilization category AC-3;
rated voltage 400-415V/50 Hz;
type 2 coordination.
front door (position 1) – is

equipped with 8 latches (position 4) and has an 135° opening angle;

side panels (position 2) –

provided with cuttings for natural ventilation;

top partitioning plate (position 3);
bottom partitioning plate

(position 5);

device mounting plate (position

6) – depending on the equipment which will be installed in the compartment, it may be vertical (see picture above) or horizontally;

optional accessories – supports,

cross-pieces, shutters, etc. 18

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 21

Sizes

Pos. Type

I. “Feeder”, “Busbar Coupler” Section

L1 L (mm) L2 H (mm) A (mm) 1. 2. 3. B 600 700 800 – – –

II. “Outgoing” Section

1. 2. – – 400 500

III. “Busbar Return” Section

1. 300 A 2.300 1.100 C

TYPE A TYPE B TYPE C

19

DISMOD IN≤5000A LOW VOLTAGE POWER DISTRIBUTION AND MOTOR CONTROL SWITCHBOARD: MCC-DISMOD In≤3200A low voltage distribution switchboard

SLIDE 22

SLIDE 23

AUXILIARY SERVICES SUPPLY CABINETS FOR 400/230 VAC AND 48...220 VDC

21

SLIDE 24

400/230 VAC and 48...220 VDC auxiliary services supply cabinets

Auxiliary services supply cabinets are designed for feeding low voltage

wn consumers from:
400/220/110/20(6kV) power

stations;

Hydropower plants;
Thermo power plants.

Own services consumers can be fed with AC power supply (400/230VAC) (except the consumers for which, due to security reasons, lower voltage is mandatory)

r with DC power supply, usual

voltages being 24, 48, 110, 220 VDC. DC own consumers:

protection devices;
automation units;
interlocks;
metering, measuring and

signalling devices;

remote terminal units;
emergency lighting.

Usually the cabinet has two independent AC power supplies provided by auxiliary service

transformers. The cabinet has two

single busbar systems coupled through a bus-tie. Automatic source changeover can be provided at request. The DC auxiliary services cabinet have the same confjguration except the power supplies which are usually provided by battery systems. AC own consumers usually are:

transformers and

autotransformers cooling systems;

voltage regulation equipment;
battery chargers;
battery ventilation systems;
operating mechanism for breakers

and switches;

fjre alarm system;
lighting equipments;
heating equipments;
AC circuits for metering,

protection, automation. 22

AUXILIARY SERVICES SUPPLY CABINETS FOR 400/230 VAC AND 48...220 VDC

SLIDE 25

Functionalities

AC/DC auxiliary services supply cabinet provides the following functions:

main busbar connection to

power suppllies (auxiliary service transformers, AC generators, baterries and rectifjers);

loads connection to distribution

busbar;

overload and short-circuit

protection for busbar and loads;

metering of electrical parameters

(current, voltage) for incoming supply and busbar system;

local and remote control for

connection;

automatic source changeover for

AC auxiliary services supply cabinets;

working status signalization;
safety of operators;
circuits testing.

For AC services cabinets, the following measurements and signalling can be provided:

busbar voltage;
frequency and power factor

metering;

measurement of active/reactive

energy of incoming supply;

current/ voltage measurements on

loads circuits;

automatic source changeover of

power supplies;

circuit breakers status signalling

(position, fault) for incoming and

utgoing circuits.

For DC services cabinets, the following measurements and signalling can be provided:

busbar voltage metering;
battery (or rectifjers) currents

measuring;

busbar insulation fault detection;
no voltage, undervoltage and
vervoltage signalling;
battery status (insulation, voltage

level, charging current, capacity);

circuit breakers status signalling

(position, fault) for incoming and

utgoing circuits.

Measured parameters can be transmitted to other control centres, using convertors (transducers) with 4…20 mA unifjed signal or through communication network (Modbus, Profjbus or other transmission protocols).

Cabinet architecture

usually, AC/DC auxiliary services

supply cabinets are realized in

ne or more associated steel

enclosures with transparent doors, allowing visual access of the equipment without opening the door.

equipments are mounted on

a mounting plate located in the backside of the enclosure, access being possible from the front side

f the cabinet.
on request and according to the

application type, equipments can be mounted on both sides of the mounting panel. In these cases front/rear access is provided.

metering devices, control and

signalling equipments are mounted on dedicated hinged front plates located in the upper part of the cabinet.

the cable entry is done through

the lower side of the cabinet, through dedicated gland plates. On request, the cable access is possible through the top part of the cabinet.

switchboard lighting, opening,

16A/230V a.c. outlet, heating element with thermal control are provided as standard.

the cabinets are fmoor mounting

type; 100mm or 200mm high plinths are available.

Romanian language labelling

(other languages on request) is provided.

RAL 7035 powder paint colour

fjnishing.

Cabinet presentation

one or more steel enclosures

with transparent doors, with front or front/rear access (by request).

distribution system made with

copper bars and fjxed busbar supports, located in the top part

f the cabinet, protected against

direct contact.

withdrawable circuit breakers

for incoming feeders (from transformers or rectifjers/ batteries), with auxiliary contact for open/close/tripped signalling, with manual or remote control.

circuit breakers for outgoings

fjxed or withdrawable (most common case), with auxiliary contacts.

metering devices: ammeter,

voltmeter, power factor meter, frequency meter, etc.

insulation fault detectors.
local control and signalling

equipment’s: pushbuttons, lamps, position indicators.

connection terminals for

power and control and signalling circuits. 23

AUXILIARY SERVICES SUPPLY CABINETS FOR 400/230 VAC AND 48...220 VDC

SLIDE 26

Technical Data

AC services supply cabinets Rated voltage (Ue) 400/230V Rated insulation voltage (Ui) 690V Rated frequency (fn) 50Hz Rated impulse voltage (Uimp) 8kV Rated current (In) maximum 630A Rated short-time withstand current (Icw/1s) 25kA Rated peak withstand current (Ipk) 52,5kA

Operating conditions

Environment type WDr/CT (moderate climate: dry hot/ cold temperate) Installation indoor Operating temperature

10°C…+40°C

Transport, storage temperature

40°C…+55°C

Humidity 50% la +40°C, 90% la +20°C Maximum operating altitude 2000m Degree of pollution 3 Overvoltage category III Electromagnetic environments Type A Protection degree IP43 DC services supply cabinets Rated voltage (Ue) 24, 48,110, 220VDC Rated insulation voltage (Ui) 690V Rated impulse withstand voltage (Uimp) 8kV Rated current (In) maximum 250A Rated short-time withstand current (Icw/1s) 16kA Rated peak withstand current (Ipk) 32kA 24

AUXILIARY SERVICES SUPPLY CABINETS FOR 400/230 VAC AND 48...220 VDC

SLIDE 27

AC auxiliary services supply cabinet – Electrical schema DC auxiliary services supply cabinet – Electrical schema

220 V d.c. own services customers SECTION OF BUS BAR 1 220 V d.c. own services customers SECTION OF BUS BAR 2 400/230 V a.c. own services customers SECTION OF BUS BAR 1 400/230 V a.c. own services customers SECTION OF BUS BAR 2

25

AUXILIARY SERVICES SUPPLY CABINETS FOR 400/230 VAC AND 48...220 VDC

SLIDE 28

SLIDE 29

CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6)Kv POWER STATIONS

27

SLIDE 30

Control, signalling and protection panels for 110/20(6)kv power stations

Classifjcation

According to the functionality of the 110kv switchgear following types of protection panels are available:

feeder protection panels;
110/20(6)kV transformer

protection panels;

bus-tie protection panels.

Functionalities

According to the application type, the protection panels are equipped with I.E.D. (Intelligent Electronic Device) which can provide the following functionalities (the list is not exhaustive):

circuit breakers, switches ON/OF

command, remote and local, with interlocks fulfjlment;

transformer voltage regulation

through on load tap-changer control;

transformer ventilation control;
network parameters measuring:

phase currents, neutral current, phase to phase and phase to neutral voltages, active and reactive power, power factor, frequency, load curve;

primary equipment’s position

monitoring;

tap-changer position monitoring;
Condition monitoring including

circuit-breaker condition monitoring, trip circuit supervision and internal self-supervision of the transformer terminal;

events log;
built-in events reporting and

sequential events recorder;

Control functions including local

and remote control of switching

bjects, including object status

indication and interlockings on bay and substation level;

communication interface with the

central;

Large graphic display, either

integrated or as an external module;

Additional protection functions:
verexcitation, overvoltage,

undervoltage, residual overvoltage, directional overcurrent and earth-fault, overfrequency, underfrequency and underimpedance line back-up protection;

Extensive set of communication

protocols: IEC 60870-5-10x, IEC 61850, Profjbus, Modbus, etc;

current and voltage transformers

circuits survey;

self-testing;
breaker failure, recloser, source

changeover functions with able/ disable option. 28

CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6)Kv POWER STATIONS

SLIDE 31

Panel components

suitable steel enclosure;
basic protection relay (Siemens,

ABB, Schneider, Areva);

reserve protection relay (Siemens,

ABB, Schneider, Areva);

controller for tap changer for

position information and voltage automatic regulation (only for transformer protection cabinet);

special connector blocks for

currents and voltage transformers with testing facilities;

disconnection terminals;
selectors, pushbuttons, signalling

lamps, auxiliary relays;

circuit breakers for control,

signalling, spring charging and heating circuits;

connection terminals.

The protection relay may have graphical or alphanumeric display, various auxiliary supply voltages and different numbers of digital inputs (DI), analogical inputs (AI) and digital outputs (DO) according to the application’s requests. Communication protocol shall be chosen according to SCADA system, most used being IEC 61850.

Panel architecture

suitable steel fmoor mounting

enclosure 2000x800x600 mm (HxWxD), with 200mm high plinth, RAL 7035 painting colour with reinforced transparent 2mm thick front door.

hinged inside 19’’- 40U rack, with

120° opening angle, for mounting the protection relays (main and reserve) and control and signalling elements (disconnection terminals, lamps, selectors, current/ voltage transformers connection blocks).

in the back side of 19” rack,

a mounting panel is available for auxiliary relays, circuit breakers and connection terminals.

bottom plate with one cable

entry, with brush type cable entry gasket.

internal panel lighting with

door switch command, 230V ac 16A socket with earthing contact (German standard) and heating element with thermostat control.

current and voltage transformers

special connection blocks allowing test kits connection, without dismounting the fjeld circuits.

circuit breakers for the DC and AC

circuits.

Labelling is in Romanian language

(English on request), with easy reading of labels with opened or closed door. 29

CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6)Kv POWER STATIONS

SLIDE 32

Technical characteristics

Rated voltage [Un] measuring circuit: 100√3 Vac. protection circuit: 100V ac Rated frequency [fn] 50Hz± 5% Primary equipments operational voltage [Up] 6 ÷ 110kV Current transformer nominal ratio 50 ÷ 4000 / 5 / 5 A Voltage transformer nominal ration 6 ÷ 110 kV/ 100V / 100√3V Auxiliary supply voltage 24, 48, 110, 220 VDC 100, 110, 230 VAC Protection degree IP31

Mounting conditions

Installation indoor Ambient temperature during operation

5÷40°C

Ambient temperature during transport, storage

25÷50°C

Average operation ambient temperature within 24h 35°C Relative humidity maximum 50% la 40°C without condensation Maximum operating altitude 2000m Degree of pollution 3 Vibrations, shocks resistance class 1 Overvoltage category III Electromagnetic environments Type A Lifetime service 25 years 30

CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6)Kv POWER STATIONS

SLIDE 33

110kV Feeder protection panel – Electrical schema 110/20kV Transformer protection cabinet – Electrical schema

CELL LEA 110 kV LEVEL 1 COMMAND (CELL) LEVEL 2 COMMAND (CELL) Control room LEVEL 3 Remote control

MEASURE PROTECTION MAIN NUMERIC PROTECTION COMMAND CONTROL UNIT AUTOMATION CONTROL REMOTE CONTROL REMOTE MEASURING REMOTE SIGNALING DISPATCHING EVENTS LOG PARAMETERIZATION WORK STATION

LEVEL 2 COMMAND (CELL) Control room LEVEL 3 Remote control

MEASURE PROTECTION NUMERIC PROTECTION UNIT AUTOMATION CONTROL REMOTE CONTROL REMOTE MEASURING REMOTE SIGNALING EVENTS LOG PARAMETERIZATION

CELL TRAFO 110/20 kV LEVEL 1 COMMAND (CELL)

NUMERIC PROTECTION UNIT

31

CONTROL, SIGNALLING AND PROTECTION PANELS FOR 110/20(6)Kv POWER STATIONS

SLIDE 34

SLIDE 35

SLIDE 36

LOW VOLTAGE BUSSINES UNIT Manolesti Deal 33 Botosani 710003, Romania T +40 231 532186 (87,88,89) F +40 231 532185

ffjce@electroalfa.ro

www.electroalfa.ro

Bucharest F (40-21) 3154177 bucuresti@electroalfa.ro Alexandria alexandria@electroalfa.ro Craiova craiova@electroalfa.ro Iasi F (40-232) 240440 iasi@electroalfa.ro Bacau bacau@electroalfa.ro Brasov F (40-268) 315522 brasov@electroalfa.ro Sibiu F (40-269) 436438 sibiu@electroalfa.ro Cluj Napoca F (40-264) 444461 cluj@electroalfa.ro Timisoara F (40-256) 223124 timisoara@electroalfa.ro Sales Representatives (c) 2011 Electroalfa. and Electroalfa’s logo are registered trademarks. LOW VOLTAGE BUSSINES UNIT CATALOG