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KYN28A-12 outdoor switchgear 12kv switchgear 33kv switchgear
1,Outline
KYN28A-12 (Z) armored remove AC metal-enclosed switchgear (hereinafter referred to as "switching equipment") which applies to three-phase AC 50Hz power system for receiving and distributing power and circuit implementation of control, protection and monitoring.
2 Type meaning
3,Normal conditions of use
1 Ambient air temperature: -15 ℃ ~ + 40 ℃;
4,Main technical parameters
| Project | Unit | Value | ||
| Rated voltage | kV | 3.6,7.2,12 | ||
| Rated frequency | Hz | 50 | ||
| Breaker rated current | A | 630,1250,1600,2000,2500,3150 | ||
| Rated current of switchgear | A | 630,1250,1600,2000,2500,3150 | ||
| Rated short-time withstand current(4S) | kA | 16,20,25,31.5,40 | ||
| Rated peak-value withstand current(peak-value) | kA | 40,50,63,80,100 | ||
| Rated short-circuit breaking current | kA | 16,20,25,31.5,40 | ||
| Rated short circuit switchgear current(peak-value) | kA | 40,50,63,80,100 | ||
| Rated insulation level | (1min) power frequency withstand voltage | Interelectrode,electrod-to-earth | kV | 24,32,42 |
| Between open contact | kV | 24,32,48 | ||
| Lighting impulse withstand voltage(peak-value) | Interelectrode,electrod-to-earth | kV | 40,60,75 | |
| Between open contact | kV | 46,70,85 | ||
| Protection class | Enclosure(IP4X),compartment and breaker’s room(IP2X) |
|||
5, Structural features
A, busbar chamber B, circuit breaker handcart chamber
C, cable chamber D, electrical relay and instrument chamber
1, enclosure 2, branch busbar
3, busbar wall bushing 4, main busbar
5, fixed contact device 6, contact box
7, current transformer 8, earthing switch
9, cable 10, lighting arrester
11, ground strap 12, detachable bulkhead
13, bulkhead(valve) 14, control wiring plug
15, circuit breaker handcart 16, heating equipment
17, withdrawable horizontal bulkhead 18, earthing switch operating gear
19, bottom plate 20, pressure relief device
21, control metallic channel
6,Dimensions
Dimensions schematic
Table 1: Overall dimensions Unit(mm)
| Height(B) | 2300(2200) | |
| Width(A) | Rated current of small branch busbar over 1250A, rated thermal stability current 40kV | 800 |
| Rated current of small branch busbar over 1600A | 1000 | |
| Depth(C) | incoming or outgoing by cables | 1500 |
| incoming or outgoing by overhead lines |
1660 |
|
7, Installation Dimensions
Install size diagram
8, Ordering notice
KYN28A-12 (Z) (GZSI) switching equipment orders should provide the following technical information:
1 Main circuit diagram and use, in-line system diagram, rated voltage, rated current, rated short-circuit breaking current row distribution room floor plan and switching equipment
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