Functions:
1. Capable of testing various AC/DC, current, voltage, intermediate, self-holding, signal and other individual relays as well as complete relay protection panels. It can test the pickup voltage (current) value, dropout voltage (current) value of various relays, and the pickup time and dropout time of various contacts (normally open, normally closed, changeover, time-delay). All tests are automatically performed three times with data storage, and the average return coefficient of the three tests is automatically calculated and printed. Test results can be repeatedly displayed and printed.
2. Conveniently test various parameters of reclosing relays.
3. Equipped with frequency and phase measurement functions, capable of measuring 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. Two independent channels are provided, both insulated from other outputs of the device, allowing convenient measurement of live contacts, meeting the requirements for online testing of relays with simple wiring and safety.
5. Utilizes a precise timing reference (10 microseconds) and a counter up to 100 hours, so it can be used independently as a precision millisecond meter to replace traditional stopwatches.
Precautions:
1. The three-phase microcomputer relay protection test set is built with an industrial computer and Windows operating system. Please do not frequently power on/off the host.
2. The device panel or backplane is equipped with USB ports, allowing hot-plugging of USB devices (such as USB drives), but ensure that data transfer is completed before plugging/unplugging.
3. The three-phase microcomputer relay protection test set is equipped with a dedicated self-restoring CF card to avoid operating system damage caused by illegal shutdown, deletion, or modification of files on the hard disk or desktop icons. If you need to store data on this device, please save it to the D drive. When using a USB drive to copy data, ensure the drive is clean and virus-free, and do not use the USB drive to install other software programs on this system.
4. When connecting an external keyboard or mouse, do not plug into the wrong port, otherwise the Windows operating system may not start properly.
5. Do not turn off the power directly while output is active, to avoid protection misoperation due to incorrect output at shutdown.
6. The binary inputs are compatible with dry contacts and potential (0～250VDC). When using live contacts, the high potential (positive) side of the contact should be connected to the common terminal COM.
7. When using this instrument, do not block or cover the ventilation openings. Generally, place the instrument upright or open the support feet for a slight tilt.
Technical Specifications:
◆ AC Voltage Output
0～250V continuously adjustable, output capacity 600VA, over-range protection at 260V
◆ AC Current Output
0～50A, 0～100A continuously adjustable
At 0～50A, open-circuit voltage is 10V.
At 0～100A, open-circuit voltage is 5V. Overload protection action current is 120A.
◆ DC Voltage Output
0～250V continuously adjustable, current 2A, over-range protection at 260V, overload protection action current 2.1A±5%.
◆ DC Current Output
0～200mA, 0～5A continuously adjustable
At 0～200mA, open-circuit voltage is 48V, overload protection action current is 230mA.
At 0～5A, open-circuit voltage is 24V, overload protection action current is 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 independently
