Neutral point resistor cabinet for ER-B transformer

Application scope of ER-B transformer neutral point resistance cabinet: 1. Urban power supply system: resistance grounding 2. Metro power supply system: resistance grounding 3. Generator neutral point grounding resistance: main function: to limit fault current and burn the generator iron core; Limit transient overvoltage to approximately 2.5 times the rated phase voltage; Suppress resonance overvoltage and limit single-phase grounding fault current to no more than (5-15A); Improve the sensitivity of generator grounding protection and make protection configuration more convenient

Applicable scope of neutral point resistor cabinet for ER-B transformer
1. Urban power supply system: resistance grounding
2. Subway power supply system: resistance grounding
3. Neutral grounding resistance of generator:
Main function: to limit the damage of the generator iron core caused by fault current connection;
Limit transient overvoltage to approximately 2.5 times the rated phase voltage;
Suppress resonance overvoltage
Limit the single-phase grounding fault current to no more than (5-15A);
Improve the sensitivity of generator grounding protection to make protection configuration more convenient.
4. Motor control resistor, motor starting resistor;
5. Locomotive braking resistor;
6. Capacitive light emitting current limiting resistor;
7. Harmonic filtering resistor;
8. Load resistance.