UMA ELECTRONICS ENTERPRISES


Protection of HV Transformer Used in Transformer Testing Banch:

HV transformer of rating 30KV, 50KV, and 80KV are  generally used for power and distribution transformer upto 33KV.

  • For 1 minute we apply HV voltage as per BIS specificstion. In case of transformer under test having weak insulation. leakage current flow on the HV side upto certain milli apmere. Leakage is tolerable but beyond that it causes distruction of transformer under test as well as HV transformer. In case protection is not provided it will lead to burning of panel also.

  • To avoid such huge losses protection has to be provided in primary side as well as secondary side. This is explain as below by quoting example:   Suppose we are testing 11KV, 33KV transformer and we have set tolerable leakage current less than 100mA. So set point will be 100mAfor the secondary. 

  • If we are using 400V/80KV transformer then correspondingly in the primary side almost 20A current will flow.

  • Circuit sholud trip based on the secondary protectyion only. In case secondary circuit does not trip the realy due to any reason. In this case back protection in primary will come to rescue and if set current is 20A in primary side it will trip the supply to HV transformer. So HV transformer as well as transformer under test will be protected.

    HIGH VOLTAGE TRANSFORMER

     1.    Input Voltage – 230V (Single Phase)

                  Output Voltage – 30KV

                  Output Current – 100mA/200mA/300mA 

    2.       Input Voltage – 400V(2-Phase Supply)

                   Output Voltage – 50KV/80KV/100KV

                   Output Current – 100mA/200mA/300mA 

    We also provide information to select rating of HV transformer as per testing need.

                                                           

  


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UMA Electronics Enterprise

HEAD OFFICE ADDRESS 

A 404 ,Vaishali Nagar
Jaipur, Rajasthan
INDIA, Pin: 302021

Phone: 0141-2240935

SALES OFFICE ADDRESS

H-1/54
RIICO Industrial Area
Bindayaka,
Jaipur, Rajasthan
India, Pin: 302012

Phone: 0141-2240935, 09928585256/ 08107587107


Factory Address

H-1/54
RIICO Industrial Area
Bindayaka,
Jaipur, Rajasthan
India, Pin: 302012

Trustware technologies

H-1/54
RIICO Industrial Area
Bindayaka,
Jaipur, Rajasthan
India, Pin: 302012

ph.no.6350540480,8209438361


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