Transformer Iron Core Earth Grounding Leakage Current Tester
- Wrindu
- Shanghai, China
- about 25 days
- 5000 set/month
- RD8100B
The RD8100B transformer core grounding current tester can measure the transformer core grounding current and leakage current online (range: 0.00mA~100A).The current clamp is made of magnetic shielding material with strong anti-interference ability. The inner diameter of the clamp is 80mm×80mm. It can clamp cables or ground wires below Φ80mm or 96mm×4mm Flat steel ground wires. It is not necessary to disconnect the measured line, that is, to measure the line current.The instrument is equipped with 3.5-inch color touch LCD screen, two operation modes of touch and button, real-time display of measured current size and waveform, alarm threshold setting and alarm indication function, setting automatic shutdown function.The normal operation of the transformer core is single point grounding. If two or more points are grounded at the same time, a current loop will be formed between the core and the earth, and the maximum current can reach tens of amperes, which will cause local overheating or even burning of the core.The instrument can find the latent fault of transformer as soon as possible, and is one of the main tools to ensure the safe operation and normal maintenance of transformer. It is mainly suitable for leakage current test of iron core and clamp of transformer, reactor and other electrical equipment in substation and power plant
Description
The RD8100B transformer core grounding current tester can measure the transformer core grounding current and leakage current online (range: 0.00mA~100A).The current clamp is made of magnetic shielding material with strong anti-interference ability. The inner diameter of the clamp is 80mm×80mm. It can clamp cables or ground wires below Φ80mm or 96mm×4mm Flat steel ground wires. It is not necessary to disconnect the measured line, that is, to measure the line current.The instrument is equipped with 3.5-inch color touch LCD screen, two operation modes of touch and button, real-time display of measured current size and waveform, alarm threshold setting and alarm indication function, setting automatic shutdown function.The normal operation of the transformer core is single point grounding. If two or more points are grounded at the same time, a current loop will be formed between the core and the earth, and the maximum current can reach tens of amperes, which will cause local overheating or even burning of the core.The instrument can find the latent fault of transformer as soon as possible, and is one of the main tools to ensure the safe operation and normal maintenance of transformer. It is mainly suitable for leakage current test of iron core and clamp of transformer, reactor another electrical equipment in substation and power plant
.
Features
The meter can store 200 groups of data, and the stored data can be imported into the computer through USB interface
Waveform indication, alarm value setting and alarm indication
Historical data reading, consulting, saving, printing and other functions
Parameters
Function | Transformer core grounding current test; AC leakage current, current online test |
Power supply | DC 9V alkaline dry battery LR6 1.5V×6 |
Test mode | Clamp CT |
Jaw size | 80mm×80mm (It can clamp Φ 80mm conductor or 96mm × 4mm Flat steel ground wire) |
Current range | AC 0.00mA～100A |
Resolution | AC 0.00mA～9.99mA, resolution：0.01mA； |
AC 10.0mA～99.9mA, resolution：0.1mA； | |
AC 100mA～999mA, resolution：1mA； | |
AC 1.0A～100.0A, resolution：0.1A； | |
Accuracy | ±（0.5%rdg+5dgt） 23°C±3°C, below 70% RH, the wire is in the center of the jaw. |
Frequency range | 10HZ～1000HZ |
Display mode | 3.5 "color touch LCD (320dots × 240dots) |
Operation mode | with intelligent touch and key control mode at the same time |
Size of the main engine | 198mm×100mm×45mm |
Size of current clamp | 194mm×145mm×40mm |
Weight | Main machine：450g(including battery), current clamp: 780g |
LCD size | Display screen：71mm×53mm |
Electric field interference | When the external electric field 100A is close to 10mm, it is about 10mA |
Sampling rate | 1/S |
Data storage | 200 sets (no data loss during power down or battery replacement) |
Date clock | With date clock and setting function |
Sample number | With the function of test point number setting |
Automatic shutdown | Automatic shutdown and non automatic shutdown function setting function, automatic shutdown after 5 minutes by default |
Touch screen calibration | With touch screen calibration function |
USB interface | With USB interface, the data stored in the instrument can be imported into the computer |
Alarm settings | Alarm threshold setting range: 10mA～99.99A |
Alarm indication | When the test value exceeds the alarm critical value, the LCD flashes and the buzzer rings |
Line voltage | Circuit test under AC 600V |
Overflow display | Over range overflow function: "OL" symbol display |
Battery voltage | When the battery voltage drops to 7.2V ± 0.1V, the symbol of low battery voltage will be displayed to remind the battery to be replaced. At this time, the measured data is also accurate. |
Rated current | maximum 180mA |
Lead length | The lead length of current clamp is 2m |
Working temperature and humidity | -10℃～40℃, below 80%rh |
Storage temperature and humidity | -10℃～60℃, below 70%rh |
Insulation strength | AC 2kV/rms(between screw and shell) |
Suitable for safety regulation | IEC1010-1, IEC1010-2-032, pollution level 2, CAT Ⅲ 600V, I EC61326(EMC standard) |
