outdoor zero sequence current transformer

General:

Zero sequence current transformer is suitable for indoor, rated frequency 50HZ or 60HZ= rated voltage 12KV and below the small ground current system for cable grounding protection.

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

  
  

  
  

  
  

• LXK-0120 type technical data 1:for residualprotection table1

  Type	Transformation ratio（A）	Relay type	Connection type of relay coll	Relay scale value	Primary residual current of delay acting（A）	Weight（kg）
  LXK-∅120	60/1	DD-11/60	Series connection	15×1 30×1	2.4-4.5	4.5
  			Series connection	15×2 30×2	3-5
  		DD-1/60	Series connection	15×1 30×1	3-5
  			Series connection	15×2 30×2	3-6

   

   

• LXK-∅120 type technical data 2:mating with mith microcomputer protection Table2

  Transformation（A）	Accuracy class	Rated output（VA）
  60/1	0.5 5P 10P	1.0
  75/1		1.5
  100/1		2.5
  150/1		2.5
  200/1		3.75
  300/1		7.5
  150/1		2.0
  200/1		2.5
  300/1		5
  400/1		10
  500/1		12.5
  600/1		15

• LXK-ø 120、LXK-0150、LXK-0180 type technical data 3:table 3

  Type	Terminal mark	Rated voltage ratio（A）	Accuracy classes combination	Rated secondary current（A）	Relay type	Primary residual current of relay acting(A)	Weight（kg）
  LXK-∅120	S1-S2	150/5	5P6	15	DD-11/60	3-6	14
  	S1-S3	200/5	5P8
  	S1-S4	300/5	5P12
  LXK-∅150	S1-S2	150/5	5P6	15	DD-11/60	3-6	18
  	S1-S3	200/5	5P8
  	S1-S4	300/5	5P12
  LXK-∅180	S1-S2	150/5	5P10	15	DD-11/60	3-6	29
  	S1-S3	200/5	5P15
  	S1-S4	300/5	5P20

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Drawing