Withdrawable vacuum circuit breaker for medium voltage use KYN28A-12
Voltage: 12KV
Current: 630-2000A
Type: withdrawable
General
The rated voltage of KYN28-12KV indoor switchgear is 3.6～24kV, three-phase, AC, 50/60Hz, single bus or single bus segmented system complete set of power distribution equipment. It is mainly used for the power transmission of small generators in power plants, the power distribution of production enterprises and the power transmission and transmission of substations in the power system, and the start of large high-voltage motors. The role is to control, protect and monitor the system.
It conforms to IEC and GB3906-91 standards, and can be used with vacuum circuit breakers such as domestic VS1 vacuum circuit breaker, ABB's VD4, Siemens domestic ZN65A 3AH5, GE's VB2 and other vacuum circuit breakers.
Service environment
1. Air temperature: -25℃~+40℃
2. Humidity:Monthly average humidity 95%; Daily average humidity 90% .
3. Altitude :≤ 2500m
4. Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5. No frequent violent shake
Fully type-tested
The device passes all tests required by international (IEC) standards. When each switchgear goes through regular factory tests before leaving the factory.
These tests are a functional inspection of the equipment based on the characteristics of each device.
Technical data
| No. |
Item |
Unit |
Parameter |
| 1 |
Rated voltage |
kV |
3.6~24 |
| 2 |
Rated frequency |
Hz |
50/60 |
| 3 |
Rated current |
A |
630,1250,1600,2000,2500,3150,4000 |
| 4 |
Branch busbar Rated current |
630,1250,1600,2000,2500,3150,4000 |
| 5 |
Main busbar Rated current |
630,1250,1600,2000,2500,3150,4000 |
| 6 |
1min Power frequency
withstand voltage
|
wet |
KV |
38 |
50/60 |
| dry |
48 |
60/65 |
| 7 |
Lightning impulse withstand voltage |
kV |
75 |
95/125 |
| 8 |
Rated short circuit breaking current (peak) |
KA |
40/50/63/80/100 |
| 9 |
Short time withstand current(4s) |
20/25/31.5/40 |
| 10 |
Protection type |
|
IP4X for housing |
The customer should offer the following information for the order:
1. Wiring diagram of Main circuit Loop and Special Technical Requirement;
2. Installation Arrangement Plan of switch panel;
3. Specification of the component inside the switch panel and the schematic diagram of auxiliary loop and control loop diagram.
4. Other written documents are especially required.
5. SLD(Single Line Drawing)
Knkong Electric provides 11KV switchgear according to the customer's requirements, please send us the SLD then We could implement it 100%.11KV switchgear is our best-selling international product, with China's independently developed vacuum circuit breaker VS1 that allows us to compete with European products in the international market.
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Metalclad Withdrawable Switchgear 24kV Power Distribution Equipment Images
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