indoor KYN28A-24 Metalclad Withdrawable Switchgear for power distribution, 3-phase AC

indoor KYN28A-24 Metalclad Withdrawable Switchgear for power distribution, 3-phase AC

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Supplier Details

Zhejiang ELECS Electrical Co.,Ltd

Free Member  (2012)

[ Wenzhou, ZH, China ]

Business Type:  Manufacturer

Supplier has 50 products

Contact Details

Quick Details

KYN28A-24KV Metalclad

Packaging and Delivery

Standard Packaging
Delivery Lead Time:
30 Days

Product Description

Detail: indoor KYN28A-24 Metalclad Withdrawable Switchgear for power distribution, 3-phase AC

power distribution box
KYN28A-24 Metalclad Withdrawable Switchgear
ISO9001:2008 IQNet&CQC Test Report
Standards : IEC 60298,

Summary of KYN28-24 switchgear

KYN28-24 indoor metal-clad enclosed switchgear is applied to 3-phase AC 50Hz/24kV single bus bar and single bus bar section electric power system, with the function of five preventions. It has perfect and reliable prevention function against misoperation. The removing compartment of the switchgear may be assembled with vacuum circuit breaker, vacuum contactor, load breaker switch and VT handcart etc. power distribution box

Service conditions of KYN28-24 switchgear

Normal service conditions of switchgear as follows:

- - - -
Ambient temperature: | | |
| Maximum | +40C | |
| Maximum 24 hour average | +35C | |
| Minimum (according to minus 15 indoor classes) | -15C | |
Ambient humidity: | |
| Daily average relative humidity | less than 95% |
| Monthly average relative humidity | less than 90% |
| Height above sea level at site | less than 1000m |
Earthquake intensity | less than 8 degree |
Height above sea level | less than 1000m |
- - - -

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Special service conditions

Each special service condition should be proposed in advance and confirmed by the manufacturer and user.

The dielectric strength of the air will be reduced in when altitude is over 1000m at site.

If the ambient temperature is over the maximum degree, the capacity of the using current must be lower than the designed currents for both main bus bar and branching bus bar. The installation of aerator is propitious to reduce heat.

Structural feature of KYN28-24 switchgear

The enclosure is made of aluminum-zinc plated steel by CNC machine with high precise dimension, short production cycle, excellent mechanical strength and nice appearance.

The switchgear is composed by the enclosure and drawable CB. The panel and main components are shown in figures. The incoming panel and outgoing panel are the basic schemes of switchgear panel. There are other derivative schemes, such as: contact panel or metering panel. In addition, there are so many schemes of the switchgear panel with load switch, VCB (Vacuum Circuit Breaker) truck, VC (Vacuum Contactor) truck, disconnect truck. The bus-bar compartment, CB truck compartment, cable compartment and relay compartment are separated by metal sheet. The switchgear has flexible operation for CB trucks movement and clear position instruction. The earth switch allows making short circuit current and gains creditable mechanical interlock. The protection degree of enclosure is IP4X; the protection degree is IP2X when the door of VCB room is open and the truck is drawn out.

The panel has two modes of configuration: single-face configuration and face-to-face configuration.

The details of structure and main components are referenced in order documents.

Technical specification of KYN28-24 switchgear

- - - -
Item | Unit | Data |
Rated voltage | kV | 24 |
Insulation level | Rated power-frequency withstand voltage(1min) | kV | 65 / 79 (phase to earth / across open contacts) |
Rated lightening impulse withstand voltage | kV | 125 / 145 (phase to earth / across open contacts) |
Rated frequency | Hz | 50 / 60 |
Rated main bus bar current | A | 630,1200,1600,2000,2500 |
Rated branching bus bar current | A | 630,1250,1600,2000,2500 |
4s Short-time withstand current(rms.) | kA | 16, 20, 25 |
Peak withstand current(peak.) | kA | 40, 50, 63 |
- - - -

Structural drawing of KYN28-24 switchgear

- - - -
1. Enclosure | 8. Earth-switch | 15. CB truck |
2. Sub--bus-bar | 9. Cable | 16. Heater |
3. Main bus-bar bushing | 10. Surge arresters (not installed) | 17. Draw-out type horizontal isolating plate |
4. Main bus-bar | 11. Bus-bar of earthing | 18. Operating mechanism of earth-switch |
5. Fixed contact assembly | 12. Isolating plate | 19. Control cable groove |
6. Fixed contact box | 13. Partition (shutter) | 20. Pressure releasing device |
7. Current transformer (CT) | 14. Secondary circuit plug | |
- - - -

- - - -
A Bus-bar compartment | B CB truck compartment |
C Cable compartment | D Relay compartment |
- - - -

Basic Information

Business Type:
Year Established:
Total Employees:
101 - 500

About Us

In these years, our business has radiated to not only the nation, but also the whole world, and we have established an extensive and long-term business network with our customers worldwide.Our company conducts the management principle of "strong cooperation", utilizing internal resources and absorbing external advantages to the greatest degree. We have established long-period cooperation and partner relationship with Xi'an High-Voltage Research Institution, Pinggao Electric and Zhejiang University, which provide technical support for new product exploration and market enlargement. Additionally, with the advanced testing equipment and consummate after-sales service, our company has been awarded the advanced department and excellent enterprise by the government for many years. "ChangKai" products have had praise form various customers.

Member History

Year Joined:
Membership Type:
Free Member

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