Conventional accessories
Shutter valves
Insulation oil inside the transformer needs to be monitored to reduce any risk of transformer failure to a minimum. Loss of oil from the transformer does not only cause environmental pollution but can also lead in extreme cases to an explosion and fire. Shutter valves prevent the conservator from oil draining. In case of any rapid movement of the oil, the shutter valve can immediately close the pipe to stop oil dispersion. It is a perfect solution for transformers located in earthquakes and hurricane risk areas where movement causes pipe ruptures or leaks.
Choose our solution and assure reliable and safe operation of the transformer and a power supply network. You will get reliable accessories designed to shut down the transformer immediately when necessary to prevent any catastrophic failure.
Contact us and get support with the product selection.
Why buy
- Proven technology
- Adjustable value settings for alarms and switches
- Easy installation
- Maintenance free
Application
- Liquid-filled transformers
- Suitable for mineral or silicone oil
- Suitable for seismic and hurricane areas
- Suitable for new installations and retrofits
- Suitable for offshore environment
Technical data at a glance
| Material | ||
|---|---|---|
| Housing and upper part inclusive terminal box | Alluminum casting, RAL 7032, powder coated | |
| Characteristics | ||
|---|---|---|
| Installation | Indoors/Outdoors, tropical proof | |
| Red arrow indicates the installation way | ||
| Ambient temperature | from -40°C to +80°C | |
| Oil temperature | from -40°C to +115°C | |
| Degree of protection | IP65 in accordance with EN60529 | |
| Rated insulation voltage | IP65 in accordance with EN60529 | |
| Nominal tube diameter | DN25 – DN50 – DN80 | |
| Gasket | NBR | |
| Protected reed switch | ||
|---|---|---|
| Number and types | 2 x Change over contacts | |
| Nominal voltage | 24 – 230 V ac7dc | |
| Max. nominal current | 2A | |
| Min. switching current | 10 mA/24 V dc (for lower current golden contacts are available) | |
| Max. breaking capacity dc | 250W (L/R < 40 ms) | |
| Max. breaking capacity ac | 400 VA (cosΦ > 0.5) | |
| Rated insulation voltage | 2.5 kV ac 1 min between contacts and earth; 1.0 kC ac 1 min between open contacts | |
| Insulation resistance | 1000 Mohm/5000 Vdc | |
