Product Overview:40.5kV Gas Insulated Switchgear
The40.5kV Gas Insulated Switchgear is a new generation of medium voltage switchgear developed based on the high voltage 126kV GIS product technology and the medium voltage 40.5kV parameter requirements.
Specifications and Parameters:
| NO. | project | unit | Parameter values | |
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Rated current | A | Feeder current：1250、2000、2500、3150 | |
| Maximum current of the main busbar：4000 | ||||
| 3 |
Rated short-time power frequency withstand voltage (1min, effective value) |
Phase to phase, relative to ground, vacuum fracture | kV | 95 |
| isolating fracture | 118 | |||
| 4 | Rated lightning impulse withstand voltage (peak) | Phase to phase, relative to ground, vacuum fracture | kV | 185 |
| isolating fracture | 215 | |||
| 5 | Rated short circuit breaking current | kA | 31.5 | |
| 6 |
Rated short-time withstand current/ rated short-circuit duration |
kA/s | 31.5/4 | |
| 7 | Rated peak withstand current | kA | 82 | |
| 8 | Rated short-circuit breaking current breaking times | times | ≥20 | |
| 9 | Heavy breakdown level during capacitive current opening and closing | / | C2 | |
| 10 | Mechanical lifespan of circuit breaker | times | 10000（M2） | |
| 11 | Mechanical lifespan of three position switch | times | ≥3000 | |
| 12 | Mechanical lifespan of faulty grounding switch | times | ≥3000 | |
| 13 | Fault grounding switch closing ability | times | 2 | |
| 14 | Annual SF6 leakage rate | % | ≤0.1 | |
| 15 | Service life | year | ≥40 | |
| 16 | Loss of operational continuity category | category | LSC2B | |
| 17 | Rated frequency | Hz | 50/60 | |
Product Features:
Fully enclosed, gas insulated structure, eliminating problems such as condensation, insulation degradation discharge, and contact heating in air insulated switchgear;
Three position isolation switch, equipped with electric mechanism and one key sequential control function. Eliminate the risks of jamming, tipping and injuring people during the operation of the switchgear handcart;
Especially suitable for the renovation of old air cabinets, without the need to redo the foundation, replace cables, or shut down the entire station;
Equipped with self powered SF6 circuit breakers, capable of cutting reactive loads without current interruption, and possessing a C2 level back-to-back capacitor bank disconnection report from Xigao Institute;
Maintain the operating habits of switchgear products, and operation and maintenance personnel can quickly adapt to the use of new products;
In line with the trend of green environmental protection, we provide solutions for mixed gas products;
We can provide SF6/N2 mixed gas environmental protection solutions.
We offer the most advanced engineering design solutions and product technology solutions to global power customers, and continue to create value for the commercial success of global power customers.
EN
AR
BG
HR
CS
DA
FR
DE
EL
HI
PL
PT
RU
ES
CA
TL
ID
SR
SK
SL
UK
VI
ET
HU
TH
MS
SW
GA
CY
HY
AZ
UR
BN
LO
MN
NE
MY
KK
UZ
KY
