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Current position: PRODUCTS  /   SWITCHGEARS  /   Solid insulated switchgears / RMU  /  

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40.5kV Solid Insulated Switchgear/RMU

40.5kV Solid Insulated Switchgear/RMU

40.5kV Solid Insulated Switchgear/RMU

Product Advantages Solid Insulation Shielded layer of conductive material makes the surface at earth potential everywhere; it is accidently touchable providing safety features for operator. This shielded solid insulated switchgear, which is complete
Published in2018-08-20
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Detailed description


Product Advantages


Solid Insulation
Shielded layer of conductive material makes the surface at earth potential everywhere; it is accidently touchable providing safety features for operator. This shielded solid insulated switchgear, which is completely solid insulated, has entire circuit insulated by epoxy and silicon rubber, leaves no live parts in free air; given switchgear less affection of dirt, humidity and pollutions etc.; requires less necessity for maintenance. Each phase is selfcontained into single epoxy block, significantly reducing phase to phase discharge and risks of internal arc fault.


Modular architecture

Modular architecture enables reduction of switchgear dimensions Dimensions of Solid Insulated Switchgear : 700 × 2000 × 1150 it is only 1/6 of traditional air insulated type ie KYN61.

Optimized Electric Field

Computing technology facilitate optimal design of electric field and isolation.

Safety

Sealed electrified body IP67. Inner cone cable terminal to improve the connection reliability

Extreme Environment Application

Suitable for cold, high altitude, humidity, corrosion, lowland and explosion-proof area.

All Operating Condition Environment

Ambient temperature: -50 ℃ ~ +70 ℃ ; Altitude: ≤ 5500 m Internal and external arcing test report (switches, bus bar, cable compartment) detection Immersion detection test report Salt spray testing report The circuit breaker is composed of mechanism transmission box and circuit breaker poles.



Earthing /Disconnecting switch assembly
There are three internal cone sockets in the poles, among which the 2# cone is used for installing lightning arrester, and the two 3# cones are used for connecting 630A cables.


Parameters

Module V

Name

Unit

Vacuum Circuit Breaker

Disconnecting Switch

Earthing    Switch

Rated Voltage

kV

40.5

40.5

40.5

Arc Quenching

Vacuum

Rated Current

A

1250

1250

1250

Rated Frequency

Hz

50/60

50/60

50/60

Main Circuit Resistance

μΩ

≤120

≤120

≤120

Power Frequency Withstand Voltage(1 min)

kV

118

118

118

Lightning Impulse Withstand Voltage

kV

215

215

215

Rated Short Circuit Breaking Current

kA

31.5

Breaking times

Times

30

Rated Short Circuit Making Current

kA

80

Rated Short Time Withstand Current/Duration

kA/s

31.5/4s

31.5/4s

31.5/4s

Rated Peak Withstand Current

kA

80

80

80

Internal Arcing Test (AFLR level)

kA/s

31.5kA/0.5s (including bus compartment, switch compartment, cable compartment)

Degree of Protection

IP67

IP67

IP67

Mechanical Endurance

Times

10000

3000

3000


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