What do I need to specify a neutral grounding transformer?
Neutral grounding transformers are not sized by kVA. To properly specify a grounding transformer, the following parameters must be known:
- System Voltage & System BIL
- Continuous Neutral Current
- Fault Current & Duration
- Impedance
- Connection Type: Zig-Zag Autotransformer or Wye-Delta
- Enclosure Type
- Ambient Temperature
- Other Environmental Concerns