Withdrawable VCB medium voltage switch panel KYN28A-12 metal-clad
type
Voltage: 3.6-24KV
Current: 630A-2000A
Type: vacuum circuit breaker
General
KYN28 metal-clad switchgear is used in the power distribution
device of 3.6～24kV, three-phase, AC, 50/60Hz, single busbar section
system. It is mostly used for power transmission of small and
medium-sized generators in power plants, power reception and
transmission of power distribution in mining enterprises or
substations of power systems, and start-up of large high-voltage
motors. Its function is to control, protect and monitor the system.
This series of switchgear complies with IEC and GB3906-91 standards
and can be used with vacuum circuit breakers such as domestic VS1,
ABB VD4, Siemens domestic ZN65A 3AH5, GE VB2, etc.
In order to meet the requirements of wall-mounted and front-end
maintenance, the switch cabinet we made is equipped with a special
current transformer for the operator to perform maintenance and
inspection in front of the cabinet.
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
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 | The 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 the auxiliary loop and control loop diagram.
4. Other written documents are specially 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.
