SCR silicon control rectifier power supply, constant potential rectifier
The constant potential rectifier is a power unit which is used to adjust electric current automatically in impressed current cathodic protection system and make the protected body be under constant potential an impressed. It is the key equipment to provide direct current for the surface of the protected metal structure in the anti-corrosion engineering of impressed current cathodic protection system. The main function of the potentiostat control cabinet is to integrate the function transformation between two constant potential rectifiers. Therefore, it has various advantages, for example, simple, neat, convenient in operation and maintenance, and easy to be used when there is only one machine. The standard configuration of each control cabinet is to manage two sets of constant potential rectifiers, which need to design according to the specific requirements. The standard configuration of each control cabinet is to manage two sets of constant potential rectifiers, which need to design according to the specific requirements.
The output current and voltage are stable, the power consumption is low, long service life, easy to operate, easy to maintain and so on.
1.1 Operating environment temperature: -20 ºC ~+ 40 ºC
1.2 Humidity: ≤ 90%
1.3 Installation inclination: ≤ 50
1.4 Nonflammable place with no corrosive gasses
1.5 Operating altitude: ≤ 2000 m
2. Electrical performance
2.1 AC input voltage: single-phase or three-phase frequency 50HZ
2.2 DC output voltage: DC 0 ~ 150V
2.3 DC output current: DC 0 ~ 150 A
2.4 Constant potential tracking accuracy: ≤ 5mV
2.5 Over current alarm: ≤110%Id
2.6 Over potential alarm: ≤ -3 V
2.7 Tracking error fault signal: ± 30mV ~ ± 100mV
2.8 Constant current accuracy: ≤ ± 2 %
2.9 Two working modes with manual constant current and automatic constant potential
2.10 Functions with the internal adjustment (the machine adjustment) and external adjustment (external 4~ 20mA adjustment) to regulate the potential output size.
2.11 Ripple factor: ≤ 5 %
2.12 DC output with pressure sensitive resistant lightning protection.