自升压标准电压互感器简介

Ⅰ. main characteristics.

35kV, 0.05 level voltage transformer is an voltage transformer which has high voltage, high accuracy, can check the voltage transformer of below 0.02 level,

35kV/100V 35kV/3/100/3V. Voltage transformer check voltage from 20% to 120% of the rated voltage. When the twice voltage is 100V could with twice load of 0.25VA.

Ⅱ. Technical index

1. Rated voltage ratio: 35 kV /100V、35kV/3/100/3V

2.Rated twice capacity: 0.2V A, 0.07V A, 0.02V A CosФ=1.0

3. Degree of accuracy:0.05level,0.1level In rated load conditions, when the voltage within the scope of 80%Un to 120% Un ,Ratio error less than ±0.02%, Angular error less than ±0.6’;when voltage is 50%Un, Ratio error less than ±0.03%, Angular error less than ±0.9’; when voltage is 20%Un, Ratio error less than ±0.04%, Angular error less than ±1.2’.( The actual error is not more than the error limit of 70%)

4. test voltage once winding pressure sensing voltage is 1.2 Un, 1 min, twice winding to ground, power frequency withstand voltage 2kV, 1 minutes

5. Rated frequency:50Hz

Ⅲ Wiring diagram

35kV, 0.05 level voltage transformer can check the voltage transformer which below 0.1 level, test ratio is 35kV/100V、35kV/3/100/3V.Checking circuit see the figure below:

1.Double stage voltage transformer check voltage transformer wiring diagram

NOTE:When check voltage transformer,once check X must be grounding.

Be tested transformer twice x also should be grouding,

Measured voltage transformer add x voltage load box on middle

2.V oltage transformer check voltage transfoemer wiring diagram

3.V oltage transformer slef-collation wiring diagram

4.V oltage transformer check voltage transfoemer wiring diagram

ⅣAfter-sale service

Users which buy this product are enjoying the following after-sale service:

1.Within three months of the date since the products sold, if there is any quality

problems, free of charge by the company to replace the new product, but the user can not disassemble.

pany free repair products while appear any quality problems within a year.

3.Our company is responsible for the long-term repair, appropriate to charge the

cost of materials after one year.

4.If the product break, should invite professional or mail to our company repair,

never attempt to disassemble the product.Otherwise,our company is not responsible as it cause any damage.