产品概述：In addition to changing the voltage, the three-phase safe electrical isolation power supply can also electrically isolate the input winding and the output windi···
In addition to changing the voltage, the three-phase safe electrical isolation power supply can also electrically isolate the input winding and the output winding from each other to avoid touching live objects (or metal parts that may be live due to insulation damage) and the ground at the same time. danger posed. In addition, the isolation transformer also has a certain function of suppressing various interferences. The isolation transformer belongs to the safety power supply, which is generally used for safe power consumption, medical treatment, protection, lightning protection and anti-filtering. The primary and secondary side voltages of the isolated power supply can be customized upon request. The output end of the isolation transformer is completely "open circuit" isolated from the input end. First of all, the AC power supply voltage we usually use is connected to the ground with one line, and there is a potential difference of 220V between the other line and the ground. Human contact can cause electric shock. The secondary of the isolation transformer is not connected to the ground, and there is no potential difference between any two lines of it and the ground. People will not get electric shock when they touch any line, so it is safer. Exel energy isolation power supply is a safe power supply and is widely used in photovoltaic, subway, medical, high-rise buildings, airports, stations, docks, industrial and mining enterprises, and tunnels for power transmission and distribution. Safe use of electricity, play the role of protection, anti-interference and anti-filtering.
Performance parameters | |
usage frequency | 50/60HZ |
No-load current | < 4% |
Compressive strength | 3000V/min without breakdown; test instrument: YZ1802 withstand voltage tester (20mA) |
Insulation class | H grade (special grade can be customized) |
Insulation resistance | ≥2MΩ Test instrument: ZC25B-4 type megger <1000V) |
connection group | Dyn11; voltage ratio 1:1 |
Coil allowable temperature rise | 120K |
Cooling method | Natural air cooling or temperature control automatic cooling |
noise figure | ≤50db(1m) |
Wiring | Three-phase five-wire system |
Use environment | |
Temperature and humidity range | 40℃, relative humidity <80% |
Altitude | not more than 2500 meters |
working conditions | Avoid exposure to rain, humidity, heat, extreme heat or direct sunlight. There should be a distance of not less than 40cm between its cooling vents and surrounding objects |
workplace | Prevent working in places with more corrosive liquids, gases, dust, conductive fibers or metal fines Prevent working in places with vibration or electromagnetic interference |
Storage conditions | Avoid long-term upside-down storage and transportation, and can not be subjected to strong impact |
Function and Protection | |
Power distribution function | Fully intelligent control of safe power consumption, automatic cut-off for fault protection; bypass mains /manual automatic |
Parameter display function | The isolated power supply screen has the function of displaying operating parameters : input and output voltage, current, phase loss function, and the function of displaying fault information, fault records, etc. |
circuit control | Adopt digital ( CPU) true RMS sampling control system |
Protective function | With overvoltage, undervoltage, short circuit, overcurrent, reverse phase, lack of equal protection functions, the display screen can emit sound and light digital flashing alarm when the isolated power supply fails, press any button on the display surface to mute the sound |
Communication Interface | With RS232/485, it can realize remote control, remote signaling, telemetry, real-time monitoring of working status and parameters, all data must be set through the display panel, and communication interface protocol is provided free of charge |
