35kV high voltage switchgear special transformer

General:

Current transformer is suitable for electrical measurement and protection in ZW7-40.5 type vacuum circuit breaker with rated frequency of 50Hz and rated voltage of 35kV power system. The product has a single variable ratio, variable ratio, multiple stages (two, three and four secondary) high dynamic thermal stability, high precision, large capacity and other characteristics, divided into epoxy resin casting semi-closed and fully closed two structures.

Technical Data

• The performance of products is conformed to IEC61869-1:2007, IEC61869-2:2012 commission requirements

• Rated insulation level: 12/42/75kV

• Power factor of load: COSΦ=0.8

• Rated frequency: 50Hz, 60Hz

• Rated secondary current: 5A or 1A

  
  

  Rated primary current（A）	Accuracy classes combination	Rated secondary output（VA）		1s thermal current（A）	Rated dynamic current（kA）
  5-50	02S/05/10P10 02/0.5/10P10 02S/10P10/10P10 02/10P10/10P10 05/10P10/10P10 0.2S/0.5/10P1010F10 0.20.5/10P10/10P10 0.2S/10P10/10P10/10P10 0.2/10P10/10P10/10P10 0.5/10P10/10P10/10P10 10P10/10P10/10P10 10P10/10P10/10P10/10P10	0.2S 0.2	15	3	7.5
  		75	25
  		10P10	50
  75		0.2S 0.2	15	5	12.5
  		0.5	25
  		10P10	50
  100		0.2S 0.2	15	8	20
  		0.5	25
  		10P10	50
  150		0.2S 0.2	15	12	30
  		0.5	25
  		10P10	50
  200		0.2S 0.2	15	16	40
  		0.5	25
  		10P10	50
  300-400		0.2S 0.2	15	20	50
  		0.5	25
  		10P10	50
  600		0.2S 0.2	15	31.5	80
  		0.5	25
  		10P10	50
  800 1000  1200 1500  1600		0.2S 0.2	15	40	100
  		0.5	25
  		10P10	50

Drawing