0186 Kyn28 12kv High Voltage Medium Voltage Switchgear

Customization:	Available
Type:	Distribution Metering Box
Structure:	Fixed Board

Basic Information

Model NO.

KYN28

Certification

ISO9001:2000, CCC, CE

Form

All-packaged Type

Operation Voltage

Medium Voltage

Rated Voltage

12kv

Frequency

50Hz

Rated Current

630-3150A

Shell Material

Stainless Steel

Protection Grade

IP30 / IP4X

Origin

China

Product Description

KYN28-12 Armored Removable AC Metal-Enclosed Switchgear

KYN28 is a 3.6~24kV indoor metal-clad withdrawable switchgear for 3-phase 50Hz systems. It is extensively used in power plants, substations, and industrial facilities for power distribution, control, and protection. It is fully compatible with VS1, VD4 (ABB), 3AH5 (Siemens), ZN65A, and VB2 (GE) circuit breakers, meeting IEC298 and GB3906-91 standards.

Key Advantages

Metal-Armored Compartments: Functional units (breaker, busbar, cable, relay) are separated by metal partitions for enhanced safety.
Drawable Structure: Circuit breaker handcart can be easily pulled out for quick maintenance.
High Reliability: Uses vacuum/SF6 breakers with strong arc extinguishing capability and long service life.
Five-Protection Interlocking: Prevents misoperation such as load switching on isolators or live compartment access.
Modular & Expandable: Supports flexible extensions like PT and metering handcarts.

Technical Specifications

Parameter Item	Unit	Value
Rated voltage	kV	12
Rated frequency	Hz	50
Main Bus Rated current	A	630, 1250, 1600, 2000, 2500, 3150
Rated Short-Circuit Withstand Current (4s)	kA	16, 20, 25, 31.5, 40
Rated Peak Withstand Current	kA	40, 50, 63, 80, 100
Rated Short-Circuit Breaking Current	kA	25, 31.5, 40
Power Frequency Withstand Voltage (1min)	kV	Phase-to-ground: 42; Breaking: 48
Lightning Impulse Withstand Voltage	kV	Phase-to-ground: 75; Breaking: 48
Protection Class	-	Enclosure: IP4X

Structural Details

Main Compartments:
A. Busbar Compartment | B. Circuit Breaker Compartment
C. Cable Compartment | D. Instrument Compartment

Components:
1. Enclosure | 3. Main Busbar | 6. Earthing Switch
7. CT | 8. VT | 13. Withdrawable Trolley

Production & Quality Control

Frequently Asked Questions

What is the typical lead time for an order?

For quantities under 1000 units, the lead time is approximately 7-15 days. For larger orders, it usually takes around 20 days.

Can products be customized with our own logo?

Yes, we support OEM requirements. Please provide the size and Pantone Code of your logo for printing.

Do you perform quality inspections on finished products?

Yes, every step of production and all finished products undergo a rigorous inspection by our QC department before shipping.

What standards does the KYN28-12 switchgear comply with?

It meets international IEC298 standards and national GB3906-91 standards for metal-enclosed switchgear.

What are the primary applications for this switchgear?

It is ideal for power plants, substations, high-rise buildings, and industrial facilities for receiving and distributing electricity, as well as controlling and protecting circuits.

How can I receive a price quote for these products?

Please send us an inquiry with your specific requirements. You will receive a detailed response within 24 hours.