- Standard and ordinary-sized bushes
- Metallic glass transformer bushing
- Flange Type transformer bush (Flange Type Sealed)
- Flange Type transformer bushing (Porcelain Sealed)
- Wind power photovoltaic Box Transformer Substation 40.5KV bushing
- Transformer Amphenol connector, conducting rod
- Off-circuit tap-changer
- Dehydrating breather
- XDL serial oil level gauge
- Butterfly valve, valve, seal
- Gas relay, dry-type transformer accessories, oil tank accessories
Contacts:Section manager
Mobile: 86-13333086669
Tel:0086-318-3736777 0086-318-3736111
Fax:0086-318-3736969
E-mail: 76663880@qq.com
Address:Dayang Village, Wuqiang County
Contacts:Section manager
Tel:0086-318-3736777 0086-318-3736111
Mobile: 86-13333086669
¡¡¡¡QJ2-40 is a changed product of QJ1-40 gas relay. The buoy gets into the oil tank of the transformer, and it gives alarm when the oil lever is lower than the regulated level of the transformer tank. If the oil level is lower than another regulated level, the transformer is cut from operating.
Main technical parameters
Pipe diameter: 40mm
Contact capacity: DC/AC 220V 0.3A
Dielectric strength between open contacts: 2000V 1min
Seal test pressure: 245kpa 20min
Operating characters (seen in the table)
|
Type |
Alarm signal |
Trip signal |
Oil tank opening dimension |
|
QJ1-40 |
170ml¡À10% |
270ml¡À10% |
50mm |
|
QJ2-40 |
15mm¡À2.5mm under the cover |
30mm¡À2.5mm under the cover |
50mm |
|
QJ3-40 |
15mm¡À2.5mm under the cover |
30mm¡À2.5mm under the cover |
50mm |
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