Product Detailed Introduction
The microcomputer relay protection tester / microcomputer relay protection tester / Yangzhou relay protection tester adopts microcomputer technology, consisting of a microcontroller, logic control unit, AC/DC current and voltage output unit, high-precision data acquisition unit, LCD display, real-time clock, printer, etc. It has high measurement accuracy and good repeatability. This instrument also has the advantages of beautiful appearance, reliable performance, simple operation, and complete functions. It is an ideal testing instrument for calibrating relay protection devices.
This microcomputer relay protection tester / microcomputer relay protection tester / Yangzhou relay protection tester can test various AC/DC currents, voltages, signals, reclosing, differential, and other individual relays as well as complete relay protection panels. It can test the pickup voltage (current) value, release voltage (current) value, and the pickup and release times of various contacts (normally open, normally closed, changeover, time-delay) of various relays. Each test is automatically performed three times, and the average of the three values is automatically calculated, with the test results printable.
The microcomputer relay protection tester / microcomputer relay protection tester / Yangzhou relay protection tester, while keeping the main body unchanged, weighs only 10 kg. It adopts a stainless steel or plastic-aluminum case, which is beautiful and sturdy with good shock absorption performance. It uses a double carbon brush voltage regulator (i.e., double-sided voltage regulator), with a large knob to adjust heavy AC/DC voltage and current loads, and a small knob to adjust light AC/DC voltage and current loads, allowing two outputs simultaneously. It uses a 0.5-class digital meter and high-precision sensors for accurate measurement, and a six-digit digital electric stopwatch to meet time measurement requirements. It is indeed a good tool for relay protection personnel working in the field.
Technical Parameters:
1. AC voltage output: 0～250V continuously adjustable, max output capacity 1000VA
2. AC current output: 0～20A, 0～100A continuously adjustable
0～20A: open circuit voltage 5V
0～100A: open circuit voltage 10V
3. DC voltage output: 0～300V continuously adjustable, max 3A
4. DC current output: 0～200mA, 0～5A continuously adjustable
0～200mA: open circuit voltage 48V
0～5A: open circuit voltage 24V
5. Digital millisecond meter: max range: 100 seconds
Resolution: 0.001 seconds
Accuracy: 0.01% + 2 digits
6. Overall measurement accuracy: 0.5 class
7. Dimensions: 420×310×160
8. Weight: 16kg
Precautions:
1. Before powering on, no load should be connected to the output terminals, the voltage regulator should be reset to zero, and the "output control" switch should be in the off position.
2. The voltage output terminals must not be connected to low-resistance loads to avoid overheating due to overcurrent.
3. The auxiliary circuit and main circuit can only output one type of quantity at a time.
4. When the auxiliary circuit and main circuit output simultaneously, the main circuit output current should be selected.
5. During storage, transportation, and use, attention should be paid to shock prevention, moisture prevention, and avoiding severe impact.
