Product introduction:

 

 

 

FZC - III three loop dc resistance tester, high-speed microcontroller as the core, adopting high speed A/D converter and programmable current source technology, reached unprecedented effect and highly automated measurement function, with high precision, wide measurement range, data stability, good repeatability, strong anti-jamming capability, perfect protection function, fast charging and discharging characteristics of three loop synchronous measurement of display and automatic computing imbalance rate at the same time, especially for large transformer dc resistance measurement points, can greatly shorten the measurement time, improve work efficiency. Fzc-iii integrates the most advanced electronic measurement technology and extremely ingenious circuit structure. It is by no means a simple combination of three single-circuit testers, and it is the latest generation of dc resistance testing products for transformers.

 

 

 

Functional description:

 

 

 

Main functions and features

 

1. The three measuring circuits measure synchronously, display simultaneously and calculate the unbalance rate automatically.

 

2. The function configuration is highly flexible, can be three-phase measurement, two-phase measurement, single-phase measurement, the output current can be arbitrary combination, for 3 10A type tester, can be combined into 10A+10A+10A mode, 10A+10A mode, 20A mode, 10A mode, very convenient to use.

 

3. Automatic program-controlled current source technology. All the above mentioned current combinations have a total of 1000 current gears starting from the minimum value of 0, and are automatically controlled by the internal microcontroller according to the resistance under test, so as to achieve a relatively wide measurement range and the best measurement state without manual current shift.

 

4. The measurement speed is fast. For the high-voltage star side of the on-load voltage regulating transformer, there is no need to cut off the power or switch the line. The three-phase resistance value of all the tapping points can be measured by adding power at one time. The low-voltage side can adopt 20A high-current mode. The whole process can greatly shorten the measurement time and improve work efficiency.

 

5. Highly intelligent design, advanced function Settings, can automatically determine the test line virtual fault.

 

6. The protection function is perfect, can protect the impact of counter electric potential on the instrument reliably, and has the function of automatic discharge indication.

 

7. Adopting high-speed microcontroller and high-speed 16-bit A/D converter, the data response is fast and the repeatability is good after switching the on-load voltage regulating switch, and the test effect is obviously better than the slow double-integral A/D sampling method.

 

8. All measurement results can be stored or printed. This instrument has built-in electric memory, which can keep measurement data for a long time and can be checked or printed at any time.

 

9. All Chinese menu and operation tips, intuitive and convenient.

 

10. Rs-232 interface for external printer or computer communication.

 

11. No power off calendar, clock function.

 

 

 

Technical parameters:

 

 

 

Main technical indicators

 

1. Resistance measurement range: 100mW~20W, resolution 1mW

 

2. Resistance measurement accuracy: 0.2% 2 words

 

3. Current source output range: 3 (0~10A) or 3 (0~3A)

 

4. Working temperature: - 10 ℃ to 40 ℃

 

5. Ambient humidity: 10%~85%

 

6. Storage temperature: - 20 ℃ to 50 ℃

 

7. Size: 420 * 260 * 210 mm

 

8. Weight: 15Kg(excluding test line)