JSR6-12/24/40.5 SF6 Gas-insulated Ring Main Unit Switchgear
EXW
$429.41-4,295.39 /Unit
China
No. 269, Xuexi South Road, Gaohong Town, Hangzhou City, Zhejiang Province
+86-0571-2365 8328
Online Contact
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Product Introduction

Product Overview

The JSR series switchgear is a fully sealed system, with all live components and switches enclosed within a stainless steel housing, unaffected by environmental conditions. It features reliable operation, ensured safety, a compact structural design, minimal space occupation, maintenance-free performance, and a long lifespan. The product has passed type testing verification by the National High-voltage Electrical Testing Center and is widely used in small secondary substations, box-type switching stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels, and locations with harsh natural conditions.

Operating Environment

  1. Altitude: ≤4000m (please specify if the equipment operates at an altitude above 1000m to adjust the inflation pressure during manufacturing).
  2. Ambient Temperature: Maximum temperature: +55°C; Minimum temperature: -40°C; Average temperature within 24 hours does not exceed 35°C.
  3. Ambient Humidity: Average relative humidity within 24 hours does not exceed 95%; Average monthly relative humidity does not exceed 90%.
  4. Installation Environment: The surrounding air contains no explosive or corrosive gases, the installation site is free from severe vibration or impact, and the pollution level does not exceed Grade II as specified in GB/T5582.
Product Parameters

No.

Project

Unit

Load switch unit (R)

Combined electrical unit (T)

Circuit Breaker Unit (L)

1

Rated voltage

kV

12/24

12/24

12/24

2

Rated frequency

Hz

50

50

50

3

Rated current

A

630

125 (depending on fuse current)

630

4

Rated insulation level

1min power frequency withstand voltage

Phase-to-phase, phase-to-ground

kV

42/65

42/65

42/65

fracture

48/79

48/79

48/79

Control and auxiliary circuit

2/2

2/2

2/2

Lightning impulse withstand voltage

Phase-to-phase, phase-to-ground

75/125

75/125

75/125

fracture

85/145

85/145

85/145

5

Rated short-time withstand current

kA/s

25/4

--

25/4

6

Rated peak withstand current

kA

63

--

63

7

Rated short-circuit closing current

kA

63

Limited by high voltage fuses

63

8

Rated short-circuit breaking current

kA

--

Limited by high voltage fuses

25/25

9

Rated transfer current

A

--

1700/1400

--

10

Rated active load breaking current

A

630

--

--

11

Rated closed-loop breaking current

A

630

--

630

12

Mechanical life

Load Switch/Circuit Breaker

Times

10000

10000

20000

Isolating/earthing switch

3000

3000

3000

13

Loop resistance

≤ 150

--

≤ 150

14

Filling gas

 

SF6/C4 gas mixture

SF6/C4 gas mixture

SF6/C4 gas mixture

15

SF6 rated charging pressure (indicated at 20 ℃)

MPa

0.14

0.14

0.14

16

Rated inflation pressure of C4 mixed gas (indicated at 20 ℃)

MPa

0.02

0.02

0.02

17

Annual relative leakage rate of gas

%

0.01

0.01

0.01

18

IP protection level

Cabinet

 

IP4X

IP4X

IP4X

Gas box

 

IP67

IP67

IP67