JDS-2000 type relay protection test boxDetailed product description：

The JDS-2000 relay protection test box is another new type of relay protection test equipment developed by our company in 2000. The equipment weighs only 10 kilograms without changing the main body, and is made of stainless steel or plastic aluminum chassis, which is beautiful, sturdy, and has good shock absorption performance. Adopting a dual carbon brush voltage regulator (i.e. a double-sided voltage regulator), the large knob adjusts the AC/DC voltage and current of heavier loads, while the small knob adjusts the AC/DC voltage and current of lighter loads, allowing for simultaneous output of two circuits. Using a 0.5 level digital meter, high-precision sensor, precise measurement, and a six digit digital stopwatch, it can meet the requirements of time measurement and is actually a good tool for relay protection workers to work outside.

Principle Description
The instrument is divided into two circuits: the main circuit and the auxiliary circuit. The main circuit is adjusted with a large knob, and the auxiliary circuit is adjusted with a small knob. The main circuit is controlled by the "output selection" button switch on the panel to output various quantities, and the digital voltage/current meter on the instrument can automatically monitor its output value while switching each output. The auxiliary circuit is controlled by an output switch to directly adjust the output, and can be measured with an external multimeter.

Main technical characteristics of JDS-2000 relay protection test box

1. Input power supply: AC220V ± 10% 50Hz
2. Nominal capacity: 0.75KVA (capacity can be increased or decreased according to requirements)
3. Output:
Main circuit: AC 0-250V (3A) (adjustable with large knob) 0-500mA (15V)
Series resistance: 0-10A (15V)
Series resistance: 0-100A (10A)
DC 0～350V(3A)
0～500mA （15V）
Series resistance: 0-10A (15V)
Auxiliary circuit: AC 0-20V (1A) (small knob adjustment)
AC 0～250V(1A)
DC 0～350V（1A）
4. Measurement range:
Voltage measurement range: 0-500.0V (direct measurement)
Measurement range of AC current: 0-500mA (direct measurement)
0-10.00A (sensor input)
0-1000A (sensor input)
Range of DC current measurement: 0-500.0mA (direct measurement)
0-10.00A (splitter input)
Measurement time range: 0-999 seconds (resolution of 1ms)
5. Standardization: The measurement standard is level 0.5
6. Dimensions: 272mm × 172mm × 262mm
7. Weight: 10kg
8. Operating environment temperature: -20 ℃ to 45 ℃