The ASHAN KYN61-40.5 Series is a premier air-insulated, metal-clad switchgear designed for the control and protection of three-phase AC 50/60Hz power systems. Rated for voltages up to 40.5kV (widely used in 33kV and 36kV networks), this switchgear is the central hub for utility substations, large-scale industrial plants, and renewable energy projects.

The core of the KYN61 is its center-mounted withdrawable vacuum circuit breaker (VCB), which allows for rapid maintenance and equipment isolation without compromising the integrity of the main busbar. Engineered for heavy-duty service, it provides an uncompromising combination of high insulation reliability and operator safety in a compact, modular footprint.

• Heavy-Duty Withdrawable Architecture: The VCB is mounted on a precision handcart, featuring distinct "Operating," "Test," and "Disconnected" positions to ensure total safety during maintenance.

• Superior 40.5kV Insulation Level: Built on a 40.5kV platform to provide an extra safety margin for 33kV/36kV systems, ensuring stability during lightning impulses and power frequency surges.

• Advanced "Five-Prevention" Interlocks: A comprehensive mechanical and electrical interlocking system prevents common operator errors, such as moving the breaker while it is closed or entering a live compartment.

• Fully Compartmentalized Design: The unit is divided into four grounded, arc-proof compartments (Busbar, VCB, Cable, and Low Voltage). This design localizes internal faults and protects personnel from arc-flash incidents.

• Corrosion-Resistant Al-Zn Construction: Fabricated from CNC-machined Aluminum-Zinc coated steel sheets, providing exceptional mechanical strength and a 20+ year service life in humid or coastal environments.

1. Renewable Energy Plants: The primary grid-connection switchgear for utility-scale solar farms and onshore/offshore wind farms.

2. Industrial Primary Substations: Main power feed for heavy industry, including steel mills, mining operations, and petrochemical plants.

3. Regional Grid Distribution: Reliable secondary distribution for metropolitan 33kV power grids.

4. Infrastructure Projects: High-voltage power management for international airports, metropolitan railways, and data center hubs.

• Turnkey Customization: We integrate your specified vacuum circuit breakers, including ABB VD4, Schneider HVX, or our high-performance VS1 series.

• Smart Grid Ready: Can be equipped with advanced digital protection relays, fiber-optic communication, and real-time monitoring for SCADA system integration.

• Optimal Thermal Management: Features a specialized busbar layout and ventilation system designed to minimize temperature rise during high-current operations.

• Certified Safety: Fully tested for internal arc resistance and temperature rise according to IEC 62271-200 global standards.

Q: Is this cabinet suitable for 36kV applications?

A: Yes. The KYN61-40.5 is designed for a maximum service voltage of 40.5kV, making it an extremely robust and safe choice for 33kV, 34.5kV, and 36kV networks.

Q: Does the unit support remote monitoring?

A: Absolutely. We can install smart meters and communication modules (Modbus/RS485) that allow for remote switching and real-time data tracking of voltage, current, and power quality.

Q: What is the typical lead time for a 1250A unit?

A: Standard units typically ship within 6 to 8 weeks from drawing approval, depending on the complexity of the protection relay requirements.

KYN61-40.5 Armored removable AC metal closed switchgear

KYN61-40.5(Z) type alternating-current metal-clad and metal-enclosed withdrawable switchgear (hereinafter referred to as switchgear) is a indoor complete set of power distribution unit of three-phase AC 50 Hz and rated voltage of 40.5 kV. Used for receiving and distributing the electric energy in power plants, transformer substations, mining and industrial enterprises,etc., it controls,protects and detects the circuits,also is applicable to frequent operation locations. This switchgear complies with GB/T11022-1999,GB3906-1991,DL404-1997,etc.