| NEUTRAL GROUNDING RESISTOR |
Because of the fact that fault currents at star point grounded mains should be limited, transformers/generators are grounded over star point with neutral grounding resistors. In this way earth fault could be sensed by projection relays while limiting the current damage.
Our neutral grounding resistors could be manufactured at desired power and resistance values for transformer substations, wind power stations and generator applications. |
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| An example for technical specifications of the neutral grounding resistor for 34,5kV: |
Standart
Rated Voltage
Rated Current
Rated Resistance
Protection Class
Cooling
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: IEEE Std 32
: 36/√3kV
: 1000A 5 sn.
: 20Ω
: IP23
: Natural |
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| Limiting fault currents becomes very important at protecting generator windings. Therefore, we are manufacturing generator neutral grounding resistor panel limiting fault current to 10 Amper value, with current transformers. |
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