Dual Power Automatic Switchgear for Diesel Generators
Material: carbon steel
Color: Gray
Place of Origin: Shanxi, China
Application: Industrial
Product Category: Automatic Transfer Switch
This automatic transfer switchgear is specially designed for diesel generator systems. Suitable for AC 400V three‑phase four‑wire low‑voltage distribution systems, it enables automatic power transfer between mains supply and diesel generators. It integrates generator interlock, voltage monitoring, delayed transfer, fault alarm and other functions. Built with high‑withstand PC‑level design, it delivers high short‑circuit withstand capacity to ensure continuous power supply for generator systems. Featuring an enclosed cabinet structure, it supports multiple indoor and outdoor installation environments with corresponding protection ratings. It serves as core supporting equipment for generator standby power systems.
- Rated Voltage: AC 400V (three‑phase four‑wire)
- Rated Current: 160A ~ 630A (customizable)
- Poles: 4P
- Short‑circuit Withstand Current: ≥50kA‑100kA
- Transfer Modes: automatic restore after mains return / non‑automatic restore / diesel generator interlock
- Transfer Time: 3‑150 seconds (adjustable)
- Mechanical Endurance: ≥6000 operations
- Operating Temperature: ‑20℃ ~ 55℃
- Protection Class: IP30 (IP55 available upon customization)
- Compliance Standards: IEC 60947‑6‑1, GB 7251
- Functions: over‑voltage, under‑voltage and phase‑loss monitoring; overload, short‑circuit and earth‑leakage protection; generator start‑stop interlock
① Custom‑built for diesel generator systems with generator start‑stop interlock. When mains power fails, the unit can automatically start the generator and switch to generator power once output voltage stabilizes, realizing fully‑automatic unattended power supply.
② PC‑level high‑withstand structure provides excellent dynamic and thermal stability. It withstands high‑current surges during generator startup as well as short‑circuit current impacts for high operational reliability.
③ Multiple optional transfer modes adapt to diverse power‑supply requirements. Diesel generator interlock is supported to achieve seamless transfer between mains and backup power sources.
④ Dual mechanical and electrical interlocks implement five‑prevention functions to eliminate mis‑operation risks and protect personnel and equipment safety.
⑤ Wide operating temperature range from ‑20℃ to 55℃, delivering stable performance in high‑humidity and low‑altitude working conditions.
‑ Standby power systems with diesel generators for critical facilities including hospitals, data centers and communication base stations
‑ Emergency power generation systems for shopping malls and office buildings
‑ Dual‑power transfer for PV / energy‑storage grid‑tied systems combined with generators
‑ Generator‑based standby power systems for metallurgical, chemical and other industrial production lines
‑ Emergency power supply systems for outdoor sites such as mines and ports
Q1: What is the difference between ATS switchgear for diesel generators and standard ATS units?
A: ATS switchgear for diesel generators comes with built‑in generator start‑stop interlock. Upon mains failure, it automatically starts the generator and completes power transfer only after generator output voltage stabilizes. It avoids generator on‑load startup faults that may occur with conventional ATS, and is dedicated supporting equipment for generator standby power systems.
Q2: Is the transfer time adjustable?
A: Yes. Transfer time can be freely adjusted within 3‑150 seconds. Appropriate delay can be configured according to generator startup and voltage stabilization time to ensure safe and reliable transfer procedures.
Q3: Does manual transfer mode get supported?
A: Both manual and automatic transfer modes are available. Manual mode can be activated in case of automatic‑mode failures to guarantee power switching operations under emergency conditions.
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