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WJJB-702 Relay Protection Tester

Meet the basic test requirements in the field. This instrument has a standard four-phase voltage and three-phase current output, which can not only test various traditional relays and protection devices, but also carry out various tests on various mainstream microcomputer protection, and the test is more convenient and fast.
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First, the main features

1. Meet the basic test requirements of the site. This instrument has a standard four-phase voltage and three-phase current output, which can not only test various traditional relays and protection devices, but also carry out various tests on various mainstream microcomputer protection, and the test is more convenient and fast.

2. Meet the national standard GB/T 7261-2016 "Basic Test Methods for Relay Protection and Safety Automatic Devices", and meet the standards of the national standard DL/T 624-2010 "Technical Conditions for Relay Protection Microcomputer Test Devices".

3. Touch color screen operation interface, friendly man-machine interface, easy and fast operation; The high-performance imported ARM main control chip and the 7-inch touch screen with a resolution of 800×480 can provide rich and intuitive information, including the current working status of the device and various help information.

4. The panel is equipped with a 7-inch touch screen with a resolution of 800×480, high-definition display, which is easy to operate.

5. The main control board adopts ARM+16-bit DAC output, which can generate a high-density sine wave of 2000 points per week for the fundamental wave, which greatly improves the quality of the waveform and improves the accuracy of the tester.

6. The power amplifier adopts high-fidelity linear power amplifier, which not only ensures the accuracy of small current, but also ensures the stability of large current.

7. Can be connected to a laptop to run (optional). The laptop computer is equipped with more functional host computer software, which is connected by network port communication, which has strong versatility and stable communication. SUPPORT WINXP, WIN7, WIN10 SYSTEM.

8. It is equipped with an independent dedicated DC auxiliary voltage source output, and the output voltage is 110V (1A) and 220V (0.6A) respectively. It can be used for relays or protective devices that require DC power supply.

9. It has the function of software self-calibration, which avoids the need to open the chassis to calibrate the accuracy by adjusting the potentiometer, thus greatly improving the stability of the accuracy.

2. Technical parameters

AC current source

Single-phase current output (RMS)

0--30A/phase, accuracy: 0.5% ±5mA

Three-phase parallel output (RMS)

0--90A/three parallel output of the same phase

Allowable operating value of phase current for a long time (RMS)

10A

Maximum output power per phase

200VA

Three-phase parallel current maximum output power

600VA

The maximum allowable working time of the triple current output

5s

Frequency range

0--500Hz, accuracy 0.01Hz

phase

0--360°, accuracy 0.1°

2. DC current source

DC current output

0--±10A/phase, accuracy: 0.5% ±5mA

3. AC voltage source

Single-phase voltage output (RMS)

0--120V/phase, accuracy: 0.5% ±5mV

Line voltage output (RMS)

0--240V

Phase voltage/line voltage output power

70VA/90VA

Frequency range

0--500Hz, accuracy: 0.01Hz

phase

0--360°, accuracy: 0.1°

4. DC voltage source

Single-phase voltage output amplitude

0--±160V, accuracy: 0.5% ±5mV

Line voltage output amplitude

0--±320V

Phase voltage/line voltage output power

70VA/90VA

5. Switching terminals

Switching input terminals

8 pairs

Empty contacts

1--20mA, 24V internal active output

Potential flipping

Passive contact: low-impedance short-circuit signal

Active contact: 0-250V DC

Switching output terminals

4 pairs, empty contact, blocking capacity: 110V/2A, 220V/1A

6. Miscellaneous

Time frame

1ms--9999s, resolution: 1ms

Volumetric weight of a single machine

The volume is 328*157*250mm3, about 12.5Kg

AC power supply

AC220V±10%,50Hz,10A

7. AC current working time

The operating current < 10A

Working time≤ 60 minutes

20A>工作电流≥10A

工作时间≤70S

30A>工作电流≥20A

工作时间≤15S

工作电流:30A

工作时间≤5S

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