SF6 Load Switch-3

KENJING SF6 Gas-Insulated Switchgear Load Switch

Compact SF6 gas-insulated switchgear load switch for RMUs: 12 kV, 630 A, 20 kA/4 s or 25 kA/3 s, 50/63 kA making/peak, 42/48 kV PF, 75/85 kV LI, ≤35 μΩ, 5,000 ops, 150 mm phase spacing.

The SF6 gas-insulated switchgear load switch from KENJING is a compact MV LBS for RMU and feeder applications. At 12 kV, 50 Hz, 630 A, it delivers 20 kA/4 s or 25 kA/3 s thermal withstand, 50/63 kA peak/making, and verified dielectric margins (42/48 kV PF, 75/85 kV LI). The SF6 gas-insulated switchgear load switch ensures safe breaking of 630 A active load/loop currents, with 6.3 A no-load transformer and 10 A cable-charging duties.

Key Features & Advantages

  • Duty ratings you can rely on: 630 A rated current; ≤35 μΩ main-circuit resistance; 5,000 mechanical operations.

  • Fault withstand & making: 20/4 s or 25/3 s short-time withstand; 50/63 kA peak and short-circuit making to coordinate with MV protection.

  • Switching performance: Rated for 100 active-load breaking operations; handles loop, transformer magnetizing, and cable-charging currents.

  • Dielectric strength: 1-min PF 42/48 kV and LI 75/85 kV across to-ground/phase-to-phase and open-gap tests for GIS service.

  • Compact GIS layout: 150 mm phase center distance fits RMU bays and compact medium voltage ring main unit footprints.

  • Application fit: Ideal as a gas insulated load break switch in feeders, sectionalizers, and 12kV load break switch retrofits.

Why Choose KENJING

  • Project-ready documentation: Interface drawings, interlocks, and wiring guides reduce site time.

  • Process consistency: Routine dielectric, resistance, timing, and pressure integrity tests on every SF6 gas-insulated switchgear load switch.

  • Lifecycle support: Spares and technical assistance for upgrades and RMU expansions.

Specify the KENJING SF6 gas-insulated switchgear load switch for your next RMU or feeder project. Contact our engineering team for layout drawings, interlock schemes, and delivery options.

NO

ITEM

UNIT

PARAMETERS

REMARKS

1

Rated Voltage

kV12

2

Rated Frequency

Hz50

3

Rated Current

A630

4

Rated Short-Time Withstand Current

kA/s20/4、25/3

5

Rated Peak Withstand Current

kA50/63

6

Rated Short-Circuit Making Current

kA50/63

7

Rated Active Load Breaking Current

A630

8

Rated Loop Breaking Current

A630

9

Rated No-Load Transformer Breaking Current

A6.3

10

Rated Cable Charging Breaking Current

A10

11

Number of Active Load Breaking Operations

TIME100

12

1-Minute Power Frequency Withstand Voltage

kV42/48

13

Lightning Impulse Withstand Voltage

kV75/85

14

Mechanical Life

order5000

15

Main Circuit Resistance

μΩ≤35

16

Phase Center Distance

mm150

SF6 Gas-insulated Switchgear Load Switch (1)

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