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3phase Static transfer switch 100Amp 3 phase / 4 pole
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3phase Static transfer switch 100Amp 3 phase / 4 pole

Views: 0     Author: Site Editor     Publish Time: 2025-07-11      Origin: Site

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Static Transfer Switch (STS), is an automatic switching system for power supply. When the first circuit fails, STS automatically switches to the second circuit to supply power to the load. If the second circuit fails, STS automatically switches to the first circuit to supply power to the load. Suitable for uninterrupted power conversion of any two power sources such as UPS-UPS, UPS generator, UPS mains, and mains mains.


The STS static transfer switch adopts the switching mode of first breaking and then passing through (Break before Make), using the high-speed thyristor module as the switching element, which can realize the uninterrupted switching between

different input power sources and provide double circuit power supply for the single power load.The STS static switch is mainly composed of an intelligent control board, a high-speed thyristor, and a circuit breaker. 


NASN POWER 3phase STS uses semiconductor-based thyristors to achieve transfer times of less than 8ms, which will not cause power outages to IT loads. It can provide reliable power supply to the load while ensuring the safety of STS during different phase switching. ATS is mainly used in emergency power supply systems to automatically switch load circuits from one power source to another, ensuring the continuous and reliable operation of important loads. ATS is a mechanical structure with a conversion time of over 100 milliseconds, which may cause power outages to the load.


3 phase Static transfer switch can only work normally in parallel when the frequency and amplitude of two AC power sources are the same 3 phase 380Vac.The three phase Static Transfer Switch offers true redundancy and exceptional high reliability for automatic switching system of the power supply. Under the normal working state, the main power supply is within the normal voltage range, and the load is always connected to the main power supply. When the main power supply fails, the load automatically switches to the backup power supply.


In the process of operation, the power supply requirements are very strict, requiring continuous uninterrupted power supply and interference suppression, usually equipped with uninterruptible power supply system for power supply. In order to further improve the reliability, multi-loop power supply (multi-power supply) can also be used, so that the power system has a high MTBF index, but many IT devices only have single power input, STS static conversion switch is designed for single power equipment to solve the problem of double circuit power supply.

Using STS static transfer switch, redundant uninterruptible power supply system can be formed, that is, add one or more standby power supply (UPS, mains, generator) to a single UPS (or mains or generator), and supply power to the load through STS switch.

In ordinary times, the A-circuit power supply (such as UPS-A) supplies power to the equipment, and the other primary circuit (such as UPS-B) is the hot backup power supply. When UPS-A fails, the STS switch will automatically switch to UPS-B to ensure the continuity and high reliability of power supply.

Feature of NASN POWER STS

◆ Adopt full digital control, strong anti-interference ability, fast operation speed;

◆ Switch time ≤8ms, high reliability;

◆ Strong overload capacity, can withstand the full load boot;

◆ With the input of under-pressure, over-current and other protection functions;

◆ The front panel is equipped with a display screen and an indicator light to intuitively understand the STS status information;

◆ Fire line and zero line can be switched simultaneously.

3phase Static transfer switch 100Amp 3 phase 4 pole

Application

◆ Power plant/power dispatch center;

◆ Air traffic control/satellite communication broadcasting;

◆ Safety and Process Control in the Nuclear Industry;

◆ Financial Industry Computer Center;

◆ E-commerce Data Processing Center;

◆ Information Center for Large and Medium sized Industrial and Mining Enterprises;

◆Hospitals and Healthcare Facilities;

◆Semiconductor Manufacturing;

◆Telecommunications;

◆Any facility relying on distributed generators and sensitive electrical equipment.


ABOUT NASN

GUANGZHOU NASN POWER CO.,LTD is a professional EV charger, DC power supply and battery storage solution provider and enterprise in China, a wholly owned subsidy of NASN ELECTRONICS (HONGKONG) CO., LIMITED.

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