CONFERENCE ON STANDARADIZATION, CERTIFICATION, QUALITY CONTROL ORDER AND TESTING OF DISTRIBUTION TRANSFORMERS E le c tric a l Re se a rc h a nd De ve lopme nt Assoc ia tion Va doda r a
S IAL NT DE CRE
S IAL NT DE CRE
CRE DE NT IAL S � 24 c la ssifie d sta te of a rt e va lua tion fa c ilitie s. � Ce rtific a tion, c a libra tion, e va lua tion of wide ra ng e of e le c tric a l produc ts. � E va lua tion a s pe r na tiona l a nd inte rna tiona l sta nda rds. � T e c hnolog y De ve lopme nt Ce ntre with thrust on R&D, innova tion a nd ne w produc t de ve lopme nt. � De dic a te d spe c ia lty c e nte r for dia g nostic s of powe r pla nt e quipme nt.
CRE DE NT IAL S � Re g iona l c e nte rs a t Na vi- Mumba i, Gurg a on a nd Ra ja hmundry- be tte r c ustome r re a c h a nd se rvic e . � Mobile la bora tory for on- site c ondition monitoring of tra nsforme rs a nd e ne rg y me te rs. � Ce nte r of e xc e lle nc e for rota ting ma c hine s- fa c ilita te s improve me nts in de sig n a nd its va lida tion. � Ultra mode rn e va lua tion fa c ility for CRGO a nd insula ting ma te ria ls. � L a rg e st on- line (570 V, 120 kA) short c irc uit la bora tory. � Ac c re dite d by NABL , BIS, BE E , Inte rte k.
MIL E ST ONE S Gr own ove r 40 ye a rs with 24 c e nte rs spre a d E sta blishe d COE ove r 5 loc a tions for Rota ting ma c hine s 2015 E sta blishe d E MI- E MC spe c ia lty 2013 c e nte r E sta blishe d la rg e st on line 2012 short Circ uit L a b E sta blishe d first in Savli Short Circ uit L a b 2007 Star te d with 1 1998 c e nte r & 2 Produc t te sting 1983
E RDA’S F ACIL IT Y F OR IS 1180- 2014 � ISI ma rking is ma nda tory for tra nsforme rs up to 2.5 MVA a c c ording to IS 1180- 2014 � E RDA la bora torie s ha ve be e n c a rrying out tra nsforme r te sting sinc e the la st 40 ye a rs. � BIS a c c re dite d DT T e sting ( a s pe r IS:1180- 2014) L a bora tory a t : � E RDA Ma ka rpura , Va doda ra (upto 2.5 MVA, 33 KV) � E RDA (We st), Ra ba le , Na vi Mumba i (upto 200 KVA, 33 KV) � T e sting Ca pa c ity a t � E RDA Ma ka rpura , Va doda ra - 140 nos. T ra nsforme rs pe r month � E RDA (We st) , Ra ba le – 10 nos. T ra nsforme rs pe r month � T he fa c ilitie s ha ve be e n a c c re dite d by NABL , BIS, BE E (Va doda ra )
T E MPE RAT URE RISE , ROUT INE AND SPE CIAL T E ST F ACIL IT IE S F OR T RANSF ORME RS E RDA ha s four te st be ds to c a rry out te mpe ra ture rise a nd routine te sts. Ma ximum ra ting of tra nsforme rs whic h c a n be te ste d a t E RDA, Ma ka rpura a re up to a nd inc luding 33 kV, 2500 kVA. � E RDA ha s fa c ility to c a rry out Spe c ia l te sts: • Pr e ssur e te st • Ma g ne tic ba la nc e te st • Ze r o se que nc e impe danc e • Ove r fluxing & flux de nsity • Oil L e a ka g e te st • Paint adhe sion te st • De te r mina tion of sound le ve l • BDV & Moisture c onte nt in oil
9 ST E T RISE URE RAT MPE E T RDA E
SHORT CIRCUIT T E ST F ACIL IT Y AT E RDA E RDA ha s thre e short c irc uit te st la bora torie s. Ma ximum ra ting of tra nsforme rs whic h c a n be te ste d a t E RDA, Ma ka rpura a re : � 11/ 0.433 kV, 1600 kVA � 22/ 0.433 kV, 500 kVA � 33/ 0.433 kV, 500 kVA Ma ximum ra ting of tra nsforme r c a n be te ste d a t E RDA, Sa vli a re : � 11/ 0.433 kV, 1000 kVA � 22/ 0.433 kV, 1000 kVA � 33/ 0.433 kV, 4000 kVA
ORY ABORAT L ST E T CIRCUIT SHORT
IMPUL SE T E ST S ON T RANSF ORME RS � E RDA ha s thr e e Impulse L a bora torie s � 2 nos. of 1600 kVp a nd one of 800kVp � Ca n te st up to 160 MVA, 400 kV c la ss tra nsforme rs .
ORY ABORAT L SE IMPUL RDA E
T RANSF ORME R T E ST F ACIL IT Y AT E RDA (WE ST ) � Ac c re dite d by BIS for tra nsforme r te sting a s pe r IS: 1180- 2014 � Distribution tra nsforme rs up to 33kV, 200kVA � All te sts c a n be c a rrie d out e xc e pt for Short Circ uit T e st � E RDA a rra ng e s for the tra nsporta tion to a nd from E RDA (We st) to Va doda ra � E RDA (We st) c a n c a rry out te sting of 10 tra nsforme rs pe r month 14 E RDA
ROUT INE & T YPE T E ST ING OF T RANSF ORME RS UPT O 100 MVA, 220KV AT SIT E � T e sts c a rrie d out E RDA’s c a libra te d instrume nts. � DC winding re sista nc e me a sure me nt � Me a sure me nt of volta g e ra tio a nd ve c tor re la tion � L oa d losse s a nd impe da nc e volta g e me a sure me nt � No loa d losse s a nd c urre nt me a sure me nt � Insula tion re sista nc e me a sure me nt � T e mpe ra ture rise
BIS T E ST ING SUMMARY AS PE R IS:1180- 2014 (UPT O 10- 08- 2016) Year Quantity Sr. No. 1 5 2014-15 2 125 2015-16 3 113 2016-17 222 Report issued 20 Tests in progress 242 Total samples 16 Re ports for sa mple s in prog re ss will be dispa tc he d by 25- 08- 2016 E RDA
RAT ING OF T RANSF ORME RS T E ST E D F OR BIS IN 2014- 15 Sr. No. kVA Ratings Quantity 10 1 1 63 1 2 200 2 3 4 Total 17 E RDA
RAT ING OF T RANSF ORME RS T E ST E D F OR BIS IN 2015- 16 Sr. No. kVA Ratings Quantity 1 10 1 2 16 1 3 25 9 4 63 7 5 100 28 6 160 4 7 200 65 8 315 1 9 400 2 10 500 1 11 630 1 12 1000 1 13 1600 1 18 14 2500 3 E RDA 125 Total
RAT ING OF T RANSF ORME RS T E ST E D F OR BIS IN 2016- 17 Sr. No. kVA Ratings Quantity Under Testing 1 5 2 - 2 10 1 - 3 16 11 1 4 25 6 1 6 100 17 3 7 160 4 - 8 200 38 12 9 250 3 - 10 400 1 - 11 500 4 1 12 630 3 2 13 1000 1 - 19 14 2500 2 - Total 93 20
AVE RAGE T IME T AKE N F OR T E ST ING Sr. Year Time from Receipt of all Time from Receipt of Clarifications to Dispatch Sample to Dispatch of of Test Report (Days) Test Report (Days) 1 2015-16 20 28 2 2016-17 13 18 20
AVE RAGE T IME F OR T E ST ING Sr. Activity Duration 1 Time taken to allot test dates 2-3 days 2 Time taken to start testing for samples 2-3 days from BIS 3 Time taken to start testing for samples 2-3 weeks from manufacturers 4 Average number of samples tested per 140 nos month at Vadodara 5 Average number of samples tested per 10 nos 21 month at Rabale
T E ST ING T IME F OR IS: 1180- 2014 Da y T e sts Da y 1, 2 Routine te sts, Short c irc uit te st, Post routine te sts Da y 3 Impulse te st Da y 4 T e mpe ra ture rise te st Da y 5 Oil le a ka g e te st Da y 6 Air pr e ssur e te st (Routine & T ype te st), Da y 7 F lux de nsity te st, Physic a l ve r ific a tion Da y 8- 12 Re porting 22
T RANSF ORME RS RE CE IVE D F ROM MANUF ACT URE RS (UPT O 10- 08- 2016) Sr. No. Year Quantity 56 2014-15 1 347 2015-16 2 532 3 2016-17 935 Samples tested 23
E RDA’S E XPE RIE NCE : IS 1180 � Non c onfor ma nc e s obse r ve d in following te sts: � T e mpe ra ture Rise � Shor t Cir c uit � Impulse te sts � Pola rity a nd volta g e ra tio � Induc e d ove r- volta g e te st � Minimum c le a ra nc e s in a ir � Construc tiona l re quire me nts a nd fitting s � Ra ting a nd te rmina l ma rking pla te s not provide d � Air re le a se plug s � Dra in c um sa mpling va lve 24 � Ba se c ha nne ls e tc � T a nk la rg e r tha n spe c ifie d in IS for pa rtic ula r ra ting
F ACT ORS AT T RI BUT I NG T O DE L AY I N T E ST I NG � Spe c ific a tions a re inc omple te or wrong ly fille d to c a rry out the te sts. � Spe c ific a tions a re not me e ting the re quire me nts me ntion in sta nda rd � Misma tc hing of tra nsforme r sr. no in dra wing , te c hnic a l form a nd on a c tua l tra nsforme r. � Ba sic Insula tion le ve l (kVp) in te st re que st, dra wing & na me pla te is diffe re nt. � Ac c e ssorie s a re not provide d or do not me e t re quire me nts of the sta nda rd. 25
F ACT ORS AT T RI BUT I NG T O DE L AY I N T E ST I NG.. � Spe c ific a tions a r e a bove the minimum r e quir e me nts of the sta nda rd. � E ne rg y L e ve l, te mpe ra ture rise limits e tc . � Na me pla te s a re not a s pe r IS: 1180 2014. � Na me pla te s, dra wing s a nd sa mple do not ma tc h. � Dra wing s a re not le g ible , without dra wing numbe rs � Re quire me nt of Sta c king fa c tor, no. of turns for flux de nsity me a sure me nt not spe c ifie d � Pola rity of Sing le Pha se T ra nsforme r is not g ive n. he rmome te r poc ke t not provide d to me a sure the oil te mpe ra ture . 26 � T
E le c tric al Re se arc h & De ve lo pme nt Asso c iatio n, E RDA Ro ad, GI DC, Makarpura, Vado dara , Co nta c t us: e rda @ e rda .o rg Visit us: www.e rda .o rg
Recommend
More recommend
