Product Introduction
1.Product Introduction
KYN28-12 armoured move-open type AC metal-enclosed switchgear is suitable for three-phase AC power system with rated voltage 12kV and rated frequency 50Hz, used for accepting and distributing electric power and controlling, protecting and monitoring the circuit. The product meets the requirements of GB3906 ‘3~35kV AC metal-enclosed switchgear’, GB/T11022 ‘Common technical requirements for high-voltage switchgear and controlgear standards’, IEC60298 ‘AC switchgear and controlgear with metal casing at a rated voltage of more than 1KV and less than 52KV’, and DL/T404 ‘Ordering technical conditions for indoor AC high-voltage switchgear’. Requirements.
KYN28-12 armoured move-open type AC metal-enclosed switchgear is suitable for three-phase AC power system with rated voltage 12kV and rated frequency 50Hz, used for accepting and distributing electric power and controlling, protecting and monitoring the circuit. The product meets the requirements of GB3906 ‘3~35kV AC metal-enclosed switchgear’, GB/T11022 ‘Common technical requirements for high-voltage switchgear and controlgear standards’, IEC60298 ‘AC switchgear and controlgear with metal casing at a rated voltage of more than 1KV and less than 52KV’, and DL/T404 ‘Ordering technical conditions for indoor AC high-voltage switchgear’. Requirements.
2.Model and Meaning
3. Conditions of use
Ambient air temperature: upper limit + 40℃, lower limit - 15℃;
Maximum altitude of the equipment installation site: 1000m;
Ambient humidity: daily average relative humidity ≤ 95%, monthly average relative humidity ≤ 90%;
Seismic intensity of not more than 8 degrees;
Ambient air should be free of corrosive or combustible gases, water vapour and other obvious pollution;
No serious filth and frequent severe vibration.
Ambient humidity: daily average relative humidity ≤ 95%, monthly average relative humidity ≤ 90%;
Seismic intensity of not more than 8 degrees;
Ambient air should be free of corrosive or combustible gases, water vapour and other obvious pollution;
No serious filth and frequent severe vibration.
4. Technical Parameters
| Name | Unit | Parameter |
|---|---|---|
| Rated Voltage | KV | 12 |
| Rated Insulation Level - Power Frequency Withstand Voltage | KV | Phase - to - phase and to ground: 42; Break: 48 |
| Rated Insulation Level - Lightning Impulse | KV | Phase - to - phase and to ground: 75; Break: 85 |
| Rated Frequency | Hz | 50 |
| Rated Current of Circuit Breaker | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| Rated Current of Switchgear | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
| Rated Short - Circuit Breaking Current | kA | 20, 25, 31.5, 40 |
| Rated Short - Time Withstand Current of Main Circuit | kA/4s | 20, 25, 31.5, 40 |
| Protection Class | - | IP4X |
5.Mounting Dimension Drawing
6.External Dimensions
| A (mm) | Rated current of main switch 1250A | 800 |
| A (mm) | Rated current of main switch 1600 - 3150A | 1000 |
| B (mm) | - | 2300 |
| C (mm) | Cable incoming and outgoing lines | 1500 |
| C (mm) | Overhead incoming lines | 1660 |
| Weight (kg) | - | 700 - 1200 |
7. Ordering Instructions
Users are required to provide the following information if ordering:
Main circuit scheme diagram number, purpose and main line system diagram, distribution room layout and arrangement and configuration diagram, etc.
Requirements for control, measurement and protection functions of the switchgear as well as requirements for other blocking and automatic devices.
Models, specifications and quantities of main electrical components within the switchgear.
If bus bridge connection is required between switchgear or feeder cabinets, the rated carrying capacity of the bus bridge, the span of the bus bridge, the height from the ground and other specific requirements should be provided.
When the switchgear is used in special environmental conditions, it should be explained in detail when ordering.
Other special requirements.
Main circuit scheme diagram number, purpose and main line system diagram, distribution room layout and arrangement and configuration diagram, etc.
Requirements for control, measurement and protection functions of the switchgear as well as requirements for other blocking and automatic devices.
Models, specifications and quantities of main electrical components within the switchgear.
If bus bridge connection is required between switchgear or feeder cabinets, the rated carrying capacity of the bus bridge, the span of the bus bridge, the height from the ground and other specific requirements should be provided.
When the switchgear is used in special environmental conditions, it should be explained in detail when ordering.
Other special requirements.