WJJB-702 Relay Protection Tester
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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Jinyuan wholeheartedly welcomes new and old customers to visit and guide, and sincerely hopes to share technology with you and create the future together!
CONTACT US
Telephone：027-87051278
Fax：027-87051228
Mail：whjydq_666@163.com
Address: Building 5, Donghu High tech Industrial Innovation Base, No. 9 Miaoshan Avenue, Jiangxia District, Wuhan City
Official public account
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