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Wuhan Huatian Power Automation Co., Ltd
BC2010 Intelligent Dual Display Insulation Resistance Tester (Four Levels)
NegotiableUpdate on 04/10
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Overview
By using the frequency difference method for measurement and modern software and hardware filtering technology, with microcomputer processing control and signal processing error of only 0.005 Ω, it can be used to measure the earth network with very low grounding impedance
Product Details
Product IntroductionProduct Introduction
At present, in the power system, the grounding resistance of the earth grid is mainly measured using the power frequency high current three pole method. In order to prevent power frequency interference during the operation of the power grid and improve the accuracy of measurement results, the insulation preventive test regulations stipulate that the test current of the power frequency high current method shall not be less than 30A. As a result, there are many problems such as bulky testing equipment, complex testing processes, high workload of testing personnel, and long testing times.
The grounding resistance tester for the earth network adopts a new type of variable frequency AC power supply and measures such as microcomputer processing control and signal processing, which effectively solves the anti-interference problem during the testing process, simplifies the experimental operation process, improves the accuracy and precision of the testing results, and greatly reduces the labor intensity and testing cost of the testing personnel.
This instrument is suitable for testing the power frequency grounding impedance, contact voltage, step voltage, and other power frequency characteristic parameters of various grounding devices, as well as soil resistivity. Multi purpose models for measuring substation grounding (4 Ω), hydro thermal power plants, microwave stations (10 Ω), and lightning rods (10 Ω).
This instrument adopts cross frequency anti-interference technology, which can accurately measure data at the power frequency of 50Hz in strong interference environments. The maximum test current is 3A, which will not cause the potential of the grounding device to be too high during testing. At the same time, it also has strong anti-interference ability, so it can be measured without power outage.
Product Name: Grounding Resistance Tester for Grounding Grid, Grounding Resistance Tester for Grounding Grid, Large Grounding Resistance Tester for Grounding Grid
Product parametersProduct Parameters
Grounding impedance technical indicators
| measuring range | 0-200 Ω (including current pile impedance) |
| Resolution | 0.001Ω |
| measurement error | ± (reading x 1%+0.005 Ω) |
| maximum output voltage | AC 400V (45Hz, 55Hz, dual frequency, sine wave) |
| maximum output current | AC 3A (output 3A when the load is between 5 Ω and 133 Ω, output 2A when the load is less than 5 Ω) |
| Current output gear | 3/2.5/2/1.5/1A, one step per 0.5A, for a total of 5 steps |
| anti-interference ability | Anti power frequency 50Hz voltage 10V |
| Measurement line requirements | Current wire copper core cross-sectional area ≥ 1.5mm2 |
| Voltage wire copper core cross-sectional area ≥ 1.0mm2 | |
| power supply | AC 220V±10%，50Hz |
| External dimensions | 295×340×310mm3 |
| Instrument weight | 28kg |
Technical indicators of soil resistivity
| measuring range | 0~1000 Ω· m (Om meters) |
| measurement accuracy | ±2% |
| resolution | 0.01Ω·m |
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
- 1. The measured power frequency equivalence is good. The test current waveform is a sine wave, with a frequency difference of only 5Hz from the power frequency. Two frequencies, 45Hz and 55Hz, are used for measurement.
- 2. Strong anti-interference ability. The grounding resistance tester for the earth network adopts the frequency difference method for measurement, combined with modern software and hardware filtering technology, making the instrument have high anti-interference performance and stable and reliable test data.
- 3. High precision. The basic error is only 0.005 Ω, which can be used to measure the earth network with very small grounding impedance.
- 4. Powerful functionality. Can measure current pile, voltage pile, grounding resistance, step voltage, and contact voltage.
- 5. Easy to operate. Fully Chinese menu style operation, directly displaying measurement results.
- 6. Low wiring workload, no need for high current wires.
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instrument
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Instruction manual, verification report, certificate of conformity
Product detail diagram
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Instrument panel
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power switch
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hProduct Production Drawing
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product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.
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