HOME > Products > Epoxy cast resin electric device > RISHO special purpose transformer > Grounding tranformer
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Installed in equipment which neutral point is hard to be grounded,such
as Wind generation or Micro gas turbine system.
Generally,Grounding transformers are designed at short time rating.
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■Property |
- Excellent in crack,moisture or pollution resistance.
- Durable against sudden change of Voltage or Current.
- Installable in Cubicle
- Low zero-phase-sequence impedance
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■Representative specifications |
| Number of phase |
3-phase |
1-phase |
| Primary voltage |
33kV / 22kV / 11kV / 6kV |
33kV / 22kV / 11kV / 6kV |
Secondary voltage class |
240V
220V
110V |
190V/3
110V/3 |
－ |
240V
220V
190V
110V |
| Connection |
Y-Δ |
Y-openΔ |
Staggered |
1φG |
| Frequency |
50Hz or 60Hz |
| Capacity |
5kVA≦ ≧750kVA |
10kVA≦ ≧300kVA |
| Rated time |
Continuous、10 sec.～ |
Continuous、10 sec.～ |
| Standard |
JEC-2210-2003 |
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