ZT-DW800A частотно-регулируемый земли сетевой тестер сопротивления
- Категория: Other Electronic Measuring Instruments >>>
- Поставщик: Zhuhai,Hengtai,Electric,Power,Technology,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-20-2025 | 0.83 $* | 0.41 $* |
| Aug-20-2025 | 0.25 $* | 0.72 $* |
| Jul-20-2025 | 0.94 $* | 0.16 $* |
| Jun-20-2025 | 0.38 $* | 0.81 $* |
| May-20-2025 | 0.0 $* | 0.6 $* |
| Apr-20-2025 | 0.52 $* | 0.83 $* |
| Mar-20-2025 | 0.24 $* | 0.83 $* |
| Feb-20-2025 | 0.55 $* | 0.25 $* |
| Jan-20-2025 | 0.68 $* | 0.76 $* |
Характеристики
Product Description
Brief Introduction
Presently, the power frequency, large current and three-electrode method is mainly adopted to test the grounding resistance for large earthing grid in the electric power system. To prevent any power frequency interference in operation of power grid and improve the accuracy of measurement results, the Preventative Test Code for Insulation prescribes that the test current for the power frequency and large current method should not be less than 30A. For this reason, a lot of problems occur, such as heavy testing equipment, complex test process, great labor intensity of operators, overlong test time and so on.
ZT-DW800A Variable frequency earth network earth resistance tester is multi-purpose and applicable for earthing grid (4Ω) for substation, hydro and thermal power plant, micro relay station(10Ω) and lightning rod (10Ω). It adopts the new mode variable frequency AC power, microcomputer processing and control and signal processing measures to successfully solve anti-jamming problem in testing, simplify the test process and greatly improve the precision and
accuracy of testing results and reduce the labor intensity of operators and the test cost significantly. This instrument is suitable for testing power frequency grounding impedance, touch voltage, step voltage and other characteristic parameters of power frequency of all kinds of grounding devices as well as soil resistivity. The adoption of pilot frequency anti-jamming technology enables this instrument to get the accurate data under 50 Hz power frequencies in heavy jamming environment. The test current should be controlled within 5A to avoid over-high electrical potential of grounding device during testing. In addition, it is provided with strong anti-jamming capability, which allows measurement with power on.
ZT-DW800A Variable frequency earth network earth resistance tester is multi-purpose and applicable for earthing grid (4Ω) for substation, hydro and thermal power plant, micro relay station(10Ω) and lightning rod (10Ω). It adopts the new mode variable frequency AC power, microcomputer processing and control and signal processing measures to successfully solve anti-jamming problem in testing, simplify the test process and greatly improve the precision and
accuracy of testing results and reduce the labor intensity of operators and the test cost significantly. This instrument is suitable for testing power frequency grounding impedance, touch voltage, step voltage and other characteristic parameters of power frequency of all kinds of grounding devices as well as soil resistivity. The adoption of pilot frequency anti-jamming technology enables this instrument to get the accurate data under 50 Hz power frequencies in heavy jamming environment. The test current should be controlled within 5A to avoid over-high electrical potential of grounding device during testing. In addition, it is provided with strong anti-jamming capability, which allows measurement with power on.
Products Features
1. The measured power frequency has good equivalence.The test current waveform is sinusoidal wave, and the difference between frequency and power frequency is only 5Hz. Two frequencies, 45Hz and 55Hz, are used for measurement.
2. Strong anti-interference ability.This instrument adopts different frequency method to measure, and combines with modern software and hardware filtering technology, so that the instrument has high anti-interference performance, and the test data is stable and reliable.
3. High precision.Only 0.005 Ω basic error, can be used to measure large network grounding impedance is very small.
4. Powerful functions.The grounding resistance of current pile, voltage pile, grounding resistance of ground network, conduction resistance and soil resistivity can be measured.
5. Easy to operate.Directly display the measurement results.
6. Small wiring labor, no need for large current line.
2. Strong anti-interference ability.This instrument adopts different frequency method to measure, and combines with modern software and hardware filtering technology, so that the instrument has high anti-interference performance, and the test data is stable and reliable.
3. High precision.Only 0.005 Ω basic error, can be used to measure large network grounding impedance is very small.
4. Powerful functions.The grounding resistance of current pile, voltage pile, grounding resistance of ground network, conduction resistance and soil resistivity can be measured.
5. Easy to operate.Directly display the measurement results.
6. Small wiring labor, no need for large current line.
Specification
Impedance measurement range | 0～5,000Ω |
Resolution | 0.001mΩ |
Measurement error | ± (reading×2％+0.001Ω) |
Waveform of test current | Sine wave |
Frequency of test current | 45Hz, 50Hz, 55Hz, 60Hz, 65Hz single frequency. 45/55Hz、55/65Hz、47.5/52.5Hz automatic dual frequency |
Maximum output current | 5A |
Maximum output voltage | 450V |
Requirement for measuring lines | Section area of copper core of current line ≥1.5mm2 Section area of copper core of voltage line ≥1.0mm2 |
Power supply | AC180～270V, 50/60Hz |
Overall dimension | 370×285×285mm |
Weight | 18kg |
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Company Profile
ZHUHAI HENGTAI electric power technology Co.,ltd is a high-tech enterprise specializing in high-voltage power transmission and transformation test equipment R&D,production and operation.We sincerely hold the tenet of "quality first,customers supreme,honor commitment trustworthy".
Over the years,our company stays commitment R&D about electric power detection equipment and electric power automation,since its foundation,the company keeps living up to the belief of: "Create high-quality brand ,casting first-class enterprise image".Also,we make the "steady development,the best quality"as the core concept of the enterprise.While we are constantly strengthening the company's own R&D capabilities,learning from Europe and the United States leading technology and successful experience to enable enterprise to maintain a leading edge in technology and operations.It's certain that users are provided with "efficient,safe,innovative"services and technical support to provide customers with more satisfactory products. The company's main products are: high-voltage switch tester, loop resistance tester, transformer DC resistance tester, frequency conversion series resonance, transformer ratio tester, automatic dielectric loss tester, insulating oil dielectric strength tester, transformer comprehensive tester, DC high voltage generator, zinc oxide arrester live tester, intelligent cable fault tester and so on.
Talent is the foundation of an enterprise.The company has hired a group of experts and senior engineers with high theoretical engineering masters,doctors and field experience in power systems to strengthen the company's development to meet the needs of every user.Our products have passed the ISO 9001 international quality system certification and the provincial power research institute, the pilot institute of inspection and certification,and they are widely used in electric power, metallurgy, petrochemical, railway, research institutes, military industry and various types of large factories, mining enterprises, power equipment production enterprises.
Strict discipline, scientific management, standardized operation,we are sedulously improving and innovating in the field of power testing ,and we are deeply impressed by the quality,which makes our products have been widely appreciated and favored by our customers.
We will make unremitting efforts to provide new and old customers with better equipment and better service. Let us work hand in hand with you to contribute to the construction and maintenance of the national grid.
Over the years,our company stays commitment R&D about electric power detection equipment and electric power automation,since its foundation,the company keeps living up to the belief of: "Create high-quality brand ,casting first-class enterprise image".Also,we make the "steady development,the best quality"as the core concept of the enterprise.While we are constantly strengthening the company's own R&D capabilities,learning from Europe and the United States leading technology and successful experience to enable enterprise to maintain a leading edge in technology and operations.It's certain that users are provided with "efficient,safe,innovative"services and technical support to provide customers with more satisfactory products. The company's main products are: high-voltage switch tester, loop resistance tester, transformer DC resistance tester, frequency conversion series resonance, transformer ratio tester, automatic dielectric loss tester, insulating oil dielectric strength tester, transformer comprehensive tester, DC high voltage generator, zinc oxide arrester live tester, intelligent cable fault tester and so on.
Talent is the foundation of an enterprise.The company has hired a group of experts and senior engineers with high theoretical engineering masters,doctors and field experience in power systems to strengthen the company's development to meet the needs of every user.Our products have passed the ISO 9001 international quality system certification and the provincial power research institute, the pilot institute of inspection and certification,and they are widely used in electric power, metallurgy, petrochemical, railway, research institutes, military industry and various types of large factories, mining enterprises, power equipment production enterprises.
Strict discipline, scientific management, standardized operation,we are sedulously improving and innovating in the field of power testing ,and we are deeply impressed by the quality,which makes our products have been widely appreciated and favored by our customers.
We will make unremitting efforts to provide new and old customers with better equipment and better service. Let us work hand in hand with you to contribute to the construction and maintenance of the national grid.
FAQ
1. who are we?
We are based in Guangdong, China, start from 2004,sell to Domestic Market(90.00%),Southeast Asia(5.00%),Africa(3.00%),South America(2.00%). There are total about null people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Switching mechanical characteristics,Series Pressure Resistance Test Device,Transformer DC resistance tester,Insulation resistance tester,AC DC test Transformer
4. why should you buy from us not from other suppliers?
Zhuhai Hengtai Power Technology Co. Ltd. has been engaged in the production of high-pressure testing equipment in China for many years. it was named "Guangdong Provincial Contract Honor Credit Company." in China. Advanced equipment technology, lightweight
5. what services can we provide?
Accepted Delivery Terms: FOB；
Accepted Payment Currency:null;
Accepted Payment Type: T/T,L/C,Credit Card,Cash;
Language Spoken:English,Chinese
We are based in Guangdong, China, start from 2004,sell to Domestic Market(90.00%),Southeast Asia(5.00%),Africa(3.00%),South America(2.00%). There are total about null people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Switching mechanical characteristics,Series Pressure Resistance Test Device,Transformer DC resistance tester,Insulation resistance tester,AC DC test Transformer
4. why should you buy from us not from other suppliers?
Zhuhai Hengtai Power Technology Co. Ltd. has been engaged in the production of high-pressure testing equipment in China for many years. it was named "Guangdong Provincial Contract Honor Credit Company." in China. Advanced equipment technology, lightweight
5. what services can we provide?
Accepted Delivery Terms: FOB；
Accepted Payment Currency:null;
Accepted Payment Type: T/T,L/C,Credit Card,Cash;
Language Spoken:English,Chinese
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