JBC-03 microcomputer relay protection calibratorDetailed product description：

The JBC-03 microcomputer relay protection calibration instrument is a highly intelligent and multifunctional relay protection calibration instrument developed by our factory based on the original foundation. The microcomputer relay protection calibrator adopts microcomputer technology and consists 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, easy operation, and complete functions, making it an ideal testing instrument for verifying relay protection devices.
The microcomputer relay protection calibrator can test various AC/DC currents, voltages, intermediate, signal, reclosing, differential and other individual relays as well as the entire relay protection screen. It can test the pull in voltage (current) value, release voltage (current) value, pull in time and disconnect time of various contacts (normally open, normally closed, conversion, delay) of various relays. It can automatically test three times, calculate the average of the three times, and print the test results.

characteristic
Due to the use of microcomputer control and Chinese character prompts for operation in the JBC-03 microcomputer relay protection calibrator. This machine also has a self check error function, which immediately engages in self check after startup, greatly facilitating inspection and maintenance. Such as "pull in voltage", "disconnect voltage", "normally open pull in time", etc.

Main technical parameters of JBC-03 microcomputer relay protection calibrator
1. AC voltage output: continuously adjustable from 0 to 250V, maximum output capacity 1000VA
2. AC current output: continuously adjustable from 0 to 20A and 0 to 100A. When the open circuit voltage is 5V and 0 to 100A, the open circuit voltage is 10V
3. DC voltage output: continuously adjustable from 0 to 300V, maximum 3A
4. DC current output: continuously adjustable from 0 to 200mA and 0 to 5A. When the open circuit voltage is 48V and 0 to 5A, the open circuit voltage is 24V
5. Digital Millisecond Meter: Maximum Range: 100 seconds Resolution: 0.001 seconds Accuracy: 0.01% 1 word
6. Measurement accuracy of the whole machine: Level 0.5

Precautions for using microcomputer relay protection calibrator
For safety reasons, do not turn on the power switch when connecting the instrument and relay. Wait until the wiring is correct before turning on the power switch.
For the accuracy of the instrument, please preheat it for 5-10 minutes before conducting the experiment.
When measuring the contact action time, the millisecond meter should be reset to zero after adding the rated value.
When the instrument is not working properly, please check each safety seat. If it is damaged, replace it with the same model to ensure normal operation. Please do not self repair the instrument for other non insurance issues and contact our company promptly.
5. Each output power supply should not be short circuited, and the contact terminals should not be short circuited with the output power supply to avoid damaging the instrument.
6. After the experiment is completed, please turn off the instrument power before removing the wiring.
7. Before using the instrument, please read the user manual carefully.