KYN28A-12 (Z)Indoor AC Metal Clad Intermediate Switchgear
Metal clad intermediate switchgear suitable for (3.3/3.6/4.16/5/6.6/6.9/7.2/10/11/12 kv), applicable for power receiving and distribution and for control, protection and measurement of circuit. Product is composed of the cabinet and withdrawable parts.
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Indoor AC Metal Clad Intermediate Switchgear Description:
Indoor AC metal clad intermediate switchgear applicable for power receiving and distribution and for control, protection and measurement of circuit. Product is composed of the cabinet and withdrawable parts.The cabinet adopts aluminized zinc plate or galvanized sheet, using metal clapboard space for circuit breaker room (handcart room), main bus-bar chamber, cable chamber and relay control room, and all metal constructions are reliable grounding, the primary loop system of each compartment is equipped with pressure relief channels.We are able to provide customized solutions for each unique challenge. Our team is flexible and knowledgeable and can provide customized design, guidance, and support while reacting rapidly to requests.
Indoor AC Metal Clad Intermediate Switchgear Working Condition:
- Ambient air temperature: -15°C~~ 40°C (-25°C~~ 45°C available as customized products)
- Altitude: W4000m
- Relative humidity:
- Daily average <95%, daily average water vapor pressure <2.2kPa
- Monthly average W90%, monthly average water vapor pressure W1.8kPa
- Earthquake intensity: W magnitude 8
- Applicable in places without corrosive, flammable gas and steam and places no regular severe shock.
- Note: Customized products available.
Indoor AC Metal Clad Intermediate Switchgear Standard:
The standard products are in accordance with Chinese national GB standards and the international IEC standards.
Structural diagram of switchgear:
- A. the bus bar roomStructural diagram of switchgear
- B. the circuit breaker handcart room
- C. the cable room
- D. the relay instrument room
Indoor AC Metal Clad Intermediate Switchgear Technical Parameter
| Rated voltage | kV | 3.3,3.6, 4.1,6.6,6.9,7.2,10,11,12 |
| Rated frequency | Hz | 50 |
| Rated current of circuit breaker | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 |
| Rated current of switchgear | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 |
| Rated short time withstand current (4s) | kA | 16, 20, 25, 31.5, 40, 50 |
| Rated withstand current (peak) | kA | 40, 50, 63, 80, 100, 125 |
| Rated short circuit breaking current | kA | 16, 20, 25, 31.5, 40,50 |
| Rated short circuit closing current (peak) | kA | 40, 50, 63, 80, 100, 125 |
| 1 min power frequency Between poles, pole to earth | kV | 24, 32, 42 |
| withstand voltage Between open contacts | kV | 24, 32, 48 |
| insulation Lightning impulse Between poles, pole to earth | kV | 40, 60, 75 |
| ve' withstand voltage(peak) Between open contacts | kV | 46, 70, 85 |
| Protection level | Shell: | IP4X; IP2X when the CPT and CB doors are open. |
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