The KYN28-12 indoor AC metal-clad draw-out switchgear is applicable to three-phase AC power systems with a rated voltage of 12kV and rated frequency of 50Hz.It is used for receiving and distributing electrical energy,as well as controlling,protecting and monitoring electrical circuits.
The KYN28-12 indoor AC metal-clad draw-out switchgear is applicable to three-phase AC power systems with a rated voltage of 12kV and rated frequency of 50Hz.It is used for receiving and distributing electrical energy,as well as controlling,protecting and monitoring electrical circuits.
| Project | Unit | Data | |
|---|---|---|---|
| Rated Voltage | kV | 12 | |
| Rated Insulation Level | Power Frequency Withstand Voltage | kV | Phase-to-Phase and Phase-to-Earth: 42; Break: 48 |
| Lightning Impulse | kV | Phase-to-Phase and Phase-to-Earth: 75; Break: 85 | |
| Rated Main Busbar Current | Hz | 50 | |
| Rated Frequency | A | 630，1250，，1600，2000，2500，3150 | |
| Rated Current | A | 630，1250，，1600，2000，2500，3150 | |
| Rated Short-Circuit Breaking Current | A | 25，31.5，40 | |
| Main Circuit Rated Short-Time Withstand Current | kA | 16，20，25，31.5，40 | |
| Short-Time Withstand Current of Grounding Circuit | kA/4s | 13.9，17.4，21.8，27.4，34.8 | |
| Rated Peak Withstand Current | kA/2s | 40，50，63，80，100 | |
| Ingress Protection (IP) Rating | kA | IP4X | |
Model Description
Operating Conditions
※ Ambient Air Temperature: Upper limit +40℃; Lower limit -15℃
※ Maximum Altitude of Installation Site: 1000 m
※ Ambient Humidity:Daily average relative humidity≤95%;Monthly average relative humidity ≤90%
※ Seismic Intensity≤Grade 8;Ambient air shall be free from obvious pollution by corrosive or flammable gas,water vapor,etc.
※ No heavy pollution or frequent severe vibration
Outline Dimension Drawing
Ordering Notes
The following technical documents shall be provided when placing an order：
※ Main circuit scheme drawing number,application, main line schematic diagram,switchgear room layout drawing and arrangement configuration drawing,etc.
※ Requirements for control,measurement and protection functions of the switchgear,as well as requirements for other interlocking and automatic devices.
※ Model,specification and quantity of main electrical components in the switchgear.
※ If bus bridges are required for connection between switchgears or with incoming cabinets, provide specific parameters including rated current-carrying capacity,span and ground clearance of the bus bridges.
※ If the switchgear is to be used under special environmental conditions,detailed description shall be provided at the time of ordering.
※ Other special requirements