Single Phase Realy Tester

The instrument is a variety of high and low voltage distribution system, as a single - phase protection relay calibration of the new instrument. Suitable for electric power, metallurgy, chemical, mining, textile and other industrial and mining enterprises. It can test and verify the action voltage/current value, return voltage/current value, action time, return time and action value, return value, charge and discharge time and action time of reclosing relay of various electromagnetic type, rectifier type and transistor integrated circuit type relay. It can also test the starting current, induction element action current, quick break element action current and action time of GL type and LL type reverse time limit relay.

The instrument used in the protection relay calibration current generator, voltage generator, electric stopwatch, standard voltage/current meter, voltage regulator and a series of electrical equipment, scientifically combined into a complete portable instruments, the analog voltage/current meter, electric stopwatch to digital standard table, reading the operation is simple, accurate, It is an ideal test instrument for protection relay calibrator.

one Precautions for Use:

1. The instruments used in this instrument have been strictly identified by the national measuring station, and have been carefully calibrated before leaving the factory. When used, they should be handled with care, and the storage environment should be suitable for the requirements of electronic instruments.

2. In order to reduce the volume and weight of the instrument, advanced switching power supply technology is adopted in the design of the instrument, so when using the DC current source, attention should be paid to avoid no-load and heavy load conversion of range and load, should be carried out after the "DC current switch" is off.

3. The instrument uses fuse and automatic air switch two layers of insurance, replace the fuse should be removed from the power socket to prevent electric shock.

4. Turn the voltage and current adjusting knob to zero before opening the instrument and after operation.

5. It is strictly forbidden to add power to the contact terminal. This instrument only measures passive contact.

6. The ac and DC current output of the instrument is only used for short distance measurement, not as a current source for a long time.

7.45A AC current output terminal voltage is 20V, is specially designed for GL type and other relays with large internal resistance.

8. The test of holding intermediate relay can be carried out by referring to the test method of reclosing relay.

9. This instrument is a high-tech measuring instrument, should not be opened at will, our company to implement lifelong maintenance of its products.

10. The instrument can also be used as a stopwatch.

Simple breakdown and maintenance:

1. After the power switch is turned on, the power indicator is not on, and the voltmeter, ammeter and stopwatch are not displayed. Fuse is broken; The power socket is in poor contact.

2. After pressing the start button, there will be a cry: this is the signal that the timer is working. After pressing the reset button, the cry will stop.

3. When the ammeter is not connected with the load in the DC mode, there is a jump display of dozens of millivolts, which is a zero drift phenomenon and does not affect the test.

4. Non-contact return signal: the relay cont