1. It can test various AC/DC, current, voltage, intermediate, self-holding, signal and other single relays as well as complete relay protection panels. It can test the pickup voltage (current) value, release voltage (current) value of various relays, and the pickup time and release time of various contacts (normally open, normally closed, changeover, time-delay). All tests are automatically performed three times and the data is stored, and the return coefficient of the three average values is automatically calculated and printed. The test results can be displayed and printed repeatedly.
2. It can conveniently test various parameters of reclosing relays.
3. It is equipped with frequency measurement and phase measurement functions, which can measure the frequency of current and voltage (displaying the time of one cycle, i.e., the period) and the phase difference (time) between two signals.
4. It is equipped with two independent channels, both insulated from other outputs of the device, making it convenient to measure live contacts, meeting the requirements for online testing of relays, with simple wiring and safety.
5. It adopts a precise timing reference (10 microseconds) and a counter up to 100 hours, so it can be used alone as a precision millisecond meter to replace traditional stopwatches.
Precautions:
1. The three-phase microcomputer relay protection test device is built with an industrial computer and Windows operating system. Please do not frequently switch the host power on and off.
2. The device panel or back panel is equipped with USB ports, allowing hot-plugging of USB devices (such as USB flash drives), but please ensure that data transfer is completed before plugging or unplugging.
3. The three-phase microcomputer relay protection test device is equipped with a dedicated self-restoring CF card to avoid damage to the operating system caused by illegal shutdown, deletion or modification of files on the hard disk and desktop icons. If you really need to store data on this machine, please store the data on the D drive. When using a USB flash drive to copy data, please ensure that the USB flash drive is clean and virus-free, and do not use the USB flash drive to install other software programs in this system.
4. When connecting an external keyboard or mouse, do not plug them into the wrong ports, otherwise the Windows operating system may not start normally.
5. Do not turn off the power directly in the output state to avoid incorrect output that may cause protection misoperation.
6. The binary inputs are compatible with dry contacts and potentials (0-250VDC). When using live contacts, the high potential (positive) of the contact should be connected to the common terminal COM.
7. When using this instrument, do not block or seal the ventilation openings of the device. Generally, place the instrument upright or open the support feet to tilt it slightly.
Technical Specifications:
◆ AC voltage output
0-250V continuously adjustable, output capacity 600VA, over-range protection 260V
◆ AC current output
0-50A, 0-100A continuously adjustable
At 0-50A, open circuit voltage 10V.
At 0-100A, open circuit voltage 5V. Overload protection trip current 120A.
◆ DC voltage output
0-250V continuously adjustable, current 2A, over-range protection 260V, overload protection trip current 2.1A±5%.
◆ DC current output
0-200mA, 0-5A continuously adjustable
At 0-200mA, open circuit voltage 48V, overload protection trip current 230mA.
At 0-5A, open circuit voltage 24V, overload protection trip current 5.2A.
● Standard 12-channel current and voltage output, flexible configuration
Can output 12 channels (6 voltage, 6 current) simultaneously
Can output 6 channels of current or 6 channels of voltage separately
