product overview

Used for monitoring the density of gas in sealed containers, it can be widely applied in medium voltage switchgear and ring main unit. We can provide various solutions such as supporting new substations and renovating existing substations. On the basis of the original density relay, this product has added calibration and air supply interfaces. It has achieved online verification of the current working density relay without disassembling it, and can also replenish the air chamber. Meet the requirements outlined in the State Grid testing outline.

SF6 gas insulated ring main unit

SF6 gas insulated switchgear

product overview

Used for monitoring the density of gas in sealed containers, it can be widely applied in medium voltage switchgear and ring main unit. We can provide various solutions such as supporting new substations and renovating existing substations. On the basis of the original density relay, this product has added calibration and air supply interfaces. It has achieved online verification of the current working density relay without disassembling it, and can also replenish the air chamber. Meet the requirements outlined in the State Grid testing outline.

Technical Parameter

1. Shell diameter: Φ64mm

2. Shell material: stainless steel

3. Measurement range: 0~2 bar (abs.) or -1~6 bar

4. Measurement accuracy: Level 1.5 (at 20 ℃); Level 2.5 (at -30 ℃~+60 ℃) (gaseous)

5. Working temperature: -30 ℃~+60 ℃, relative humidity ≤ 95% RH

6. Protection level: IP65

7. Leakage rate: ≤ 1×10^-9Pa·m³/S (helium leak detection)

8. Contact type: Magnetic assisted electric contact switch (maximum 3 groups, normally open or normally closed)

9. Body interface: M20 × 1.5 (customizable)

10. Verification air supply interface: M16X1.5 (requires dedicated inflation and verification adapter, adapter size can be customized)

11. Installation method: radial or axial

12. Insulation performance: Insulation resistance:> 100M (DC 500V)

13. Power frequency withstand voltage: 2000V, 50/60 Hz 1 min

14. Contact electrical parameters: Power: 30VA

15. Maximum operating voltage: 380V

16. Maximum passing current: 1A

17. Weight: 0.5kg

18. Pressure sensing element: Burton tube