- Magnetic and Controls design Grounding transformer for providing an artificial neutral point for ungrounded three phase power sytem
- During the line to ground fault our grounding transformer provide an easy path to ground to limit the fault current and transient over voltage
- Grounding transformers generally have short time ratings since the grounding transformer carry short circuit fault current till the breaker trips
- The KVA rating of the transformer depends on the normal line to neutral voltage and fault current value for a specified time ,such as seconds to minutes
- Generally grounding transformers are done in four configurations
1.ZN(Zig Zag)
2.ZNYN
3.YND(open)
4.II0
