Full Gas Insulated Intelligent Ring Main Unit
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JGR Series Gas Insulated Ring Main Unit
Full Gas Insulated Intelligent Ring Main Unit
JGR series products, which are compact type MV switch cabinet series pressure generation function unit, can provide connection, power supply and protection to each cabinet in the grid.

JGR series products, which are compact type MV switch cabinet series pressure generation function unit, can provide connection, power supply and protection to each cabinet in the grid.

S/N

Item

Unit

Parameters

C module

F module

V module

CB module

load switch

Composite apparatus

Vacuum switch

Isolation/ground switch

Vacuum circuit breaker

Isolation/ground switch

1

Rated voltage(kv)

kV

12/24

12/24

12/24

12/24

12/24

12/24

2

1-min power frequency withstand voltage

kV

42/50

42/50

42/50

42/50

42/50

42/50

3

Lightning impulse withstand voltage

kV

95/125

95/125

95/125

95/125

95/125

95/125

4

Rated current

A

630/630

125

630/630


1250/800


5

Closed-loop breaking current

A

630/630






6

Cable-charging breaking current

A

10/16






7

Earth-fault breaking current

A

31.5/31.5






8

Short circuit breaking current

kA


31.5

20/20


25


9

Short-time withstand current 4s

kA

20/20






10

Mechanical life

Times

5000

3000

5000

2000

10000

2000

Pursuit for high safety:
 
JGR series products always stick to high safety concept to fully meet user demand and achieve actual power supply reliability.
 

JGR series products provide two protection modes to realize protection for transformers and lines and can be equipped with self-powered integrated protection units.


Pursuit for high reliability:


Individual cabinet design is adopted for cabinets of JGR series products for unlimited extension.

 
Internal load switch applies rotary compression arc extinction mode in which SF6 gas is blown to the fracture section when opening, in order to realize arc extinction.
 

Rigid design mode is adopted for the mechanism with stable opening-closing performance free of operating deformation.


Pursuit for high intelligence:


The product enjoys advanced intelligent protection development and the greatest advantage of integrated equipment design lies in full intelligence, including gas pressure detection, intelligence fault detection and diagnosis, intelligent fault isolation and power restoration. Dual-power design can eliminate power failure under any circumstance. Intelligent background monitoring and tracking system can realize wireless long-range transmission of information in real time.

 
JGR series products are intelligent IRMU integrating industry automation technology: It can provide effective protection, remote control and monitoring systems and can provide plug and play distribution network automation RTU factory solutions. No external control cabinet is required and all electronic components, batteries and modems are installed inside a dedicated space behind the standard panel of the switchgear.