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126kV Intelligent Combination Electrical Appliance

126kV intelligent combination electrical appliance

Overview

​ ZF10B-126 (L) type gas insulated metal enclosed switchgear (miniaturized common box GIS), with a rated current of 2000-3150A and a rated breaking current of 40kA, is a high-tech product developed through optimization and design based on the absorption of advanced GIS/GCB technology at home and abroad. It can use intelligent components, intelligent monitoring devices, and IED devices to achieve measurement digitization, control networking, operation programming, and communication protocol integration.

Performance Characteristics

Performance characteristics

Modular design to meet the different needs of users Small size

light weight

improving technical performance indicators Good insulation performance and strong breaking ability Short on-site installation cycle and maintenance free operation

Main electrical parameters of 126kV GIS:
 

Project

Parameter

Rated voltage

126 kV

Rated insulation level

1min power frequency withstand voltage (break/ground)

(230+73)kV/230kV

Lightning impulse withstand voltage (break/ground)

(550+103)kV/550 kV

Rated frequency

50 Hz

Rated current

1600、2000、2500、3150 A

Rated short-circuit breaking current

50 kA

Rated peak withstand current

100 kA

Short time withstand current (effective value)

40 kA/4s

SF6 gas leakage rate

<0.3%/year

SF6 gas humidity

Electrolytic decomposition products (handover acceptance value/long-term operation allowable value)

≤150/300uL/L

No electrolytic decomposition products (handover acceptance value/long-term operation allowable value)

≤250/500uL/L

Partial discharge

Each interval/individual insulation component

≤5/3Pc

Structural layout

Circuit breaker

Three phase common box/three phase separate box

Main busbar

Three phase common box

Spacing ruler

0.8-1.5m