Zero sequence current transformer
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Description
Zero sequence current transformer
Notes: The outside diameter of the cable must be bellow 50mm. If the outside diameter is more than 50mm, bigger zero sequence current transformers should be used.
It can be customized, if any special requirements are needed, please contact us.
They are used indoor for overdriven current protection in the neutral indirectly earth system whose rated frequency is 50Hz or 60Hz and rated voltage is no more than 35kV.
Technical data
The secondary winding can undertake the power-frequency withstand voltage of 3 kV to ground| Type | Number Of cables | Secondary loop | Rated current ratio (A) | ||
| Secondary output (Ω) | Adjustment current(A) | Sensitive(A) | |||
| LJ-2 | 1~2 | 10 | 0.03 | 1~3 | 20/1 |
| LJ-4 | 3~4 | ||||
| LJ-7 | 5~7 | 40/1 | |||
It can be customized, if any special requirements are needed, please contact us.
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Zero sequence current transformer
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