Detailed Product Description
1 Technical Parameters for JSZK-10 Voltage transformers
1.1 Rated voltage:10/√3/0.1/kV for measuring monitoring and control.
1.2 Rated voltage : 10/√3/0.1/√3/0.1kV for relay protection, and rated output 6P/100VA.
Technical Parameters Table
Model | Rated Voltage Ratio (kV) | Rated Output * (VA) | Limit Output (VA) | |||
Cl. 0.2 | Cl. 0.5 | Cl. 1 | Cl. 3 | |||
JSZK-10 | 10/√3/0.1/√3/0.1/√3/0.1 | 25 | 50 | 100 | 150 | 300 |
* Rated output here refers to the rated output of each pahse for 3-phase voltage transformers in accordance with standard of GB1207-2006. Rated output listed in the table only conforms to the values in one among the four.
2 Features of JSZK-10 Voltage Transforners
2.1 The ferro-core of 3 single phase measuring-monitoring and control instrument transformer is a three core column one , the windings make a connection of star, its neatral point is not earthed directly, but is earthed through a relay protection instrument transformer. The relay protection instrument transformer is seperated from the 3 phase instrument transformer, so its installation place can be changed according to the actual requirement.
2.2 If one of the 3 phases in a non-effective earthing system is eathed at different degree and a ferro-magnetic resonance occurs, the relay protection instrument transformer produces a voltage high enough to actuate a relay.
