SIWOQ5 series automatic transfer switch appliances are suitable for emergency power supply systems with AC 50Hz, rated working voltage below 400V, and rated current of 16-2500A to ensure continuous power supply to electrical load lines. SIWOQ5 is a specialized dual power supply product that can automatically detect the power condition of the power supply. When a power outage or voltage limit is detected in any phase of the power supply, the electrical load line is switched from the faulty power supply to another power supply. When the power supply returns to normal, ATSE automatically switches the load line back to the normal power supply.
The SIWOQ5 series products are basically composed of three main parts: a dedicated electric double throw transfer switch, an intelligent control system, and an independent arc extinguishing system. The electric double throw transfer switch is like the "muscle" of ATSE, used to open and close the power load line with rated current and overload current; The intelligent control system is like the "brain" of ATSE, used to monitor the quality of power supply in real-time and issue conversion commands; The switch contact system adopts silver based contacts with independent arc striking devices and multi-channel arc extinguishing and burn resistance, improving the ability to withstand short-term fault current and load conversion closure.
National Standards
GB 14048.1 "General Principles for Low Voltage Switchgear and Control Equipment"
GB14048.11 "Low voltage switchgear and control equipment - Part 6-1: Multifunctional electrical conversion switchgear"
international standard
IEC 60947-1 "Low voltage switchgear and control gear - Part 1: General principles"
IEC 60947-6-1 "Low voltage switchgear and control equipment - Multifunctional automatic transfer switching devices"
1. The switch has small volume and light weight, which can save installation space and meet the needs of customers for various purposes.
2. Adopting excitation type drive, the coil is instantly closed to complete the conversion operation, which has higher reliability, faster speed, and can ensure high synchronization.
3. The product conversion speed is fast, and the conversion time delay is adjustable.
4. Reliable electrical interlocking and sturdy mechanical interlocking ensure that only one power source is connected, avoiding parallel operation of two power sources.
5. The contact system of the switch adopts an independent arc striking device, a multi-channel arc extinguishing chamber, and a silver based contact that is resistant to burning loss, improving its short-term resistance and load conversion ability.
6. Adopting a snap on type moving and stationary contact connection, the moving and stationary contacts can be quickly separated, which is conducive to arc extinguishing of the contacts.
7. Silver based contacts balance conductivity, arc resistance, and corrosion resistance.
Self inspection function
The self inspection function can achieve regular inspection of the working status of the switch body, ensuring that the product is in good working condition.
Memory storage function
The storage memory function can store detailed conversion records of the dual power switch during its past use, making it convenient for users to complete maintenance and repair of the circuit based on fault records.
Fault alarm
Fault alarm can be used to alarm for power supply problems in the circuit, including power outage, overvoltage, undervoltage, phase imbalance, frequency imbalance, etc. During use, the power supply can be detected in real-time and the problem can be reported to on-site staff.
Reliable contact and arc extinguishing mechanism
The V-shaped staggered arc extinguishing grid, combined with silver based contacts, ensures the quality of current connection and improves the connection and breaking capacity of the product.
Three segment products have neutral line overlap conversion function
3N neutral line overlapping conversion: During the power supply state conversion process, the switch body always keeps the phase connected to avoid its emptying. When the switch is in the double split state, both the N poles of the common and backup power supplies are in the closed state. When the common power supply is closed, the backup power supply N-pole is disconnected; When the backup power supply is turned on, the N-pole of the commonly used power supply is disconnected.
