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Help CenterIndoor Metal-clad Withdrawable Switchgear
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Specifications
1.Metal-clad, withdrawable type2.IEC & GB standards
3. XIHARI type test certificate
General Description
Indoor Metal-clad Withdrawable Switchgear (hereinafter referred to as switchgear) is a high-voltage distribution device used for distribution power system at three-phase AC 24kV, 50Hz . It can be used with the vacuum circuit breaker with embedded poles manufactured by our company.
Service Condition
a. Ambient Temperature:
Max. +40°C
Min. -25°C
b. Ambient Humidity:
Daily average relative humidity:≤95%
Monthly average relative humidity:≤90%
c. Max. altitude:1000m
d. The degree of condensation and pollution Ⅱ
In case of the switchgear used in the conditions beyond the above limit, the customers shall consult with the manufacturer.
Main Technical Data
No. |
Description |
Unit |
Parameter |
|
1 |
Rated voltage |
kV |
24 |
|
2 |
Rated current |
A |
630,1250,1600,2000,2500 |
|
3 |
Rated frequency |
Hz |
50 |
|
4 |
Rated current of main busbar |
A |
630,1250,1600,2000,2500 |
|
5 |
Rated short-time power frequency withstand voltage (1min) |
Phase to phase/earth |
kV |
50 |
Across the isolating distance |
65 |
|||
6 |
Rated lightning impulse withstand voltage |
Phase to phase/earth |
kV |
125 |
Across the isolating distance |
145 |
|||
7 |
Rated short-circuit breaking current (effective value) |
kA |
25,31.5 |
|
8 |
Rated short-circuit making current (peak) |
kA |
63,80 |
|
9 |
Rated dynamic current (peak) |
kA |
63,80 |
|
10 |
Rated thermal current (effective value) |
kA |
25,31.5 |
|
11 |
Duration of rated short-circuit thermal stability current |
S |
4 |
|
12 |
Arc current |
kA |
31.5 |
|
13 |
Arcing time |
S |
1 |
|
14 |
Degree of protection |
|
IP4X for enclosure, IP2X for partition between compartments |
|
Construction
This switchgear consists of cubicle and withdrawable component (handcart), current transformer, earthing switch, lightning arrester and so on. The frame and shutters between function compartments are assembled with cooled rolling steel sheets or aluminum-coated and zinc-planted steel sheet.
Figure 1 Outline Dimension
Ordering Notice
The following details must be supplied when ordering:
1. The primary diagram, system and wiring diagram
2. Arrangement diagram of switchgear and plan layout of distribution room
3. Type of electric parts, specification and quantity
4. Material and specification of main busbar
5. Secondary principle diagram and parts list
Send Inquiry to This Supplier
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