Voltage Transformer EMF (52 - 145/170 kV)
Capable of withstanding the harshest environments
EMF inductive voltage transformers are of single-phase design and intended for connection between phase and ground in networks with insulated or direct-grounded neutral points. It is being manufactured and delivered since the 1950s.
In the EMF version the unique quartz filling minimizes the quantity of oil and allows a simple and reliable expansion system, whilst the EMF-E offers an oil-filled light weight version.
Applications
- Revenue metering
- Protective relaying
- System control and indication of power flow
Why Hitachi Energy?
- Our experts can assist and advise you with advice on finding the optimum solutions for your site conditions
- Designed for a wide range of conditions, from polar to desert climate
Brief performance data
| EMF | EMF -E | ||
|---|---|---|---|
| Installation | Outdoor | Outdoor | |
| Design | Inductive type | Inductive type- light version | |
| Insulation | Oil-paper quartz | Oil-paper | |
| Highest voltage for equipment | kV | 52 - 170 | 52 -145 |
| Voltage factor (Vf) | Up to 1.9/8 hrs | Up to 1.9/8hrs | |
| Insulators | Porcelain/polymeric | Porcelain/polymeric | |
| Creepage distance | mm/kV | ≥ 25 Longer on request |
≥ 25 Longer on request |
| Ambient temperature | ºC | -40 to +40 Others on request |
-40 to +40 Others on request |
| Design altitude | m | Maximum 1000 Others on request |
Maximum 1000 Others on request |
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