Product Description
The DC thermal stability tester is applicable for the thermal stability test of SPDs. It is for indoor operation. One DC power source with a constant current between 2mA ~5A is applied on the SPD. The current through the SPD and the surface temperature of the SPD are continuously monitored to check if it reaches thermal equilibrium, and the disconnectors act.
Technical parameters
- Requirement of input power: L1-L2, AC220V, 60Hz, 18kVA;
- Output AC voltage: maximum DC 3500V with measuring accuracy of ±10%;
- Output current: maximum 5A with measuring accuracy of ±10%;
- Voltage and current measurement: RMS;
- Voltage waveform: AC sine wave, waveform distortion rate less than 5%;
- Current adjustment range for AC:2mA-5A (4 ranges: 2-10mA, 10mA-100mA, 100mA-1A, 1A-5A);
- Operation time: more than 15 minutes @ maximum output current;
- Temperature measurement range: 0-200 degrees centigrades, measuring accuracy is ±1 degrees centi grades;
- Temperature measurement: 8 channels (K series), Omega thermocouple;
- Dimension of the control cabinet is W x D x H=1200x900x1700mm, weight is about 300kgs;