Products

QJ gas relay is a protective device installed on the oil-immersed transformer with on-load voltage regulating switch of 800KVA and above, and its installation position is mainly on the connecting pipe between the transformer and the oil tank. When the internal fault of transformer or on-load tap changer causes gas or heavy oil flow to impact the stop plate of gas relay, the tripping contact will be closed and the power supply will be automatically disconnected, thus protecting the transformer or on-load tap changer.

Model interpretation

QJ: Gas Relay

Serial number

Nominal Diameter (mm)

Technical data

Working temperature: -30 ℃ ~ 95 ℃

Switch capacity: AC 220V 0.3ACOSφ ≤ 0.6; DC220V 0.3AS ≤ 5 × 10-35

Fill the transformer oil into the relay and pressurize it to 200 Kpa at normal temperature for 200 minutes without any leakage.

Our advantage

Wide range of gas detection

Low oil level alarm disassembly function

Probe detection

Direct fuel gauge

Quick response

Stable use

Stainless steel float, anti-aging, precise buoyancy