The six-phase relay protection tester/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 time and release time of various contacts (normally open, normally closed, changeover, time-delay) of various relays. All tests are automatically performed three times, the average of the three values is automatically calculated, and the test results can be printed.
Technical Parameters:
1. AC voltage output: 0~250V continuously adjustable, maximum output capacity 1000VA
2. AC current output: 0~20A, 0~100A continuously adjustable
When 0~20A, open circuit voltage 5V
When 0~100A, open circuit voltage 10V
3. DC voltage output: 0~300V continuously adjustable, maximum 3A
4. DC current output: 0~200mA, 0~5A continuously adjustable
When 0~200mA, open circuit voltage 48V
When 0~5A, open circuit voltage 24V
5. Digital millisecond meter: maximum range: 100 seconds
Resolution: 0.001 seconds
Accuracy: 0.01% ± 2 digits
6. Overall measurement accuracy: 0.5 level
7. Dimensions: 420×310×160
8. Weight: 16kg
Testing Method:
Turn on the power switch, the display shows "Welcome to use....", "Self-checking....", the microcomputer performs self-check, after the self-check is normal, it displays "Self-check complete!".
When measuring with the six-phase relay protection tester/relay protection tester, according to the type of relay being tested, use the "Page Up" and "Page Down" keys to select the type of test power supply, so that the status display corresponds to the type of relay under test. Connect the relay coil to the corresponding power output terminals, and connect the relay contacts to the input terminals.
1. Value measurement: Press the "Measure Value" key, the instrument can measure the pickup and release voltage (current) values three times, then press the "Print" key to print the data.
2. Time measurement: First find the rated value of the relay under test, then press the "Measure Time" key, the instrument automatically opens and closes the circuit to measure the pickup and release times three times. After completion, press the "Print" key to print the data.
3. Use of the "Conversion" key: First adjust the DC current value, then press the "Conversion" key, the DC current will be output normally, and the displayed value will be shown on the second line of the screen. At this time, it can be output simultaneously with other power supplies for relay calibration requiring multiple power sources, such as reclosing relays.
4. Time setting: The user can correct the internal clock of the instrument.
5. Calibration of the six-phase relay protection tester/relay protection tester: After the instrument has been used for a period of time, if there is a deviation in testing, the user can calibrate it with a higher-level meter. Use the "Page Up" and "Page Down" keys to adjust the internal coefficients without opening the case or adjusting any knobs.
