Kyn28-24kv Metal Enclosed Circuit Breaker Switchgear for Hv Switch Cabinet

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Product Description

Basic Information
Model NO.
KYN28A-12
Voltage Level
High Voltage
Installation
Removable
Structure
Cabinet
Current
DC
Rated Voltage
12kv
Rated Frequency
50/60Hz
Protection Level
Enclosure IP4X
Phase
Three
Earthquake Intensity
Magnitude 8
Weight
840-1500kg
Production Capacity
100 Pieces/Week
Packaging & Delivery
Package Size
1500.00cm * 1200.00cm * 1800.00cm
Gross Weight
500.000kg
Transport Package
Export Standard Wooden Case
Product Description

KYN28 indoor metal-clad withdrawable switchgear is a complete power distribution device designed for 3.6~24KV, 3 phase AC 50Hz single bus sectionalized systems. It is primarily utilized for power transmission of middle/small generators in power plants, power receiving, and transmission for substations in power distribution. It is also suitable for power systems in factories, mines, and enterprises, as well as starting large high-voltage motors to control, protect, and monitor the system.

Standard Compliance: The switchgear meets IEC298 and GB3906-91 standards. It offers versatile compatibility with various vacuum circuit breakers including domestic VS1, ABB's VD4, Siemens' 3AH5, domestic ZN65A, and GE's VB2.

For convenience in installation and maintenance, the switchgear is equipped with a special current transformer, enabling front-end cubicle inspection and maintenance, supporting wall-mounting requirements effectively.

Operating Conditions
  • 📍 Ambient Temperature: -5°C to +40°C (Daily average ≤ +35°C)
  • 📍 Altitude: Less than 1000m
  • 📍 Relative Humidity: Daily average ≤ 95%, Monthly average ≤ 90%
  • 📍 Vapor Pressure: Daily avg ≤ 2.2KPa, Monthly avg ≤ 1.8KPa
  • 📍 Environment: No significant pollution by dust, smoke, corrosive/flammable gas, or salt.
Product Parameters
No. Items Unit Parameters
1Rated voltagekV12
2Lightning impulse withstand voltage (full wave)kV75
3Rated frequencyHz50
4Rated current of main busA1250, 1600, 2000, 2500, 3150, 4000
54s thermal stability current (effective valve)kA20, 25, 31.5, 40, 50
6Rated dynamic stability current (effective valve)kA40, 50, 80, 100, 125
7Level of protectionIPChamber with housing IP4X, IP2X for open door
8External dimension (W×H×D)mm800×1500×2300 / 1000×1600×2300
Detailed Photos
Production Showcase
Frequently Asked Questions (FAQ)
1. What are the primary applications of KYN28 switchgear?
It is used for power transmission in power plants, substations, industrial facilities, and mines, specifically for controlling and protecting high-voltage motors and sectionalized bus systems.
2. Which circuit breakers are compatible with this unit?
The KYN28 is highly flexible and can be used with VS1, ABB VD4, Siemens 3AH5, ZN65A, and GE VB2 vacuum circuit breakers.
3. What is the protection rating for the enclosure?
The enclosure provides a protection level of IP4X, while the circuit breaker chamber maintains IP2X when the door is open.
4. Can this switchgear be installed against a wall?
Yes, it is designed to meet wall mounting and front-end maintenance requirements, allowing operators to inspect components from the front.
5. What are the environmental limits for operation?
It operates optimally between -5°C and +40°C, at altitudes below 1000m, and in environments with a daily average relative humidity of 95% or less.
6. What is the maximum rated current for the main bus?
The main bus can handle a rated current of up to 4000A, with various configurations starting from 1250A.

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