Basic Info.
Product Description
This instrument is used to measure the characteristic parameters of grounding devices according to the new version of DL/T475-2017 "Guidelines for the Measurement of Grounding Device Characteristic Parameters". The instrument adopts a new variable frequency AC power supply and different frequency anti-interference technology, which can accurately measure in the strong interference environment of the substation. The measurement result is displayed by a large-screen LCD, with functions such as a micro printer and U disk storage. The matching frequency selection multimeter is a high-precision multi-function frequency selection multimeter, which is mainly used to measure voltage, current, voltage and current phase difference and shunt vector at a specified frequency, and can automatically calculate ground impedance, resistance component, reactance component, Diversion coefficient, diversion vector sum and actual dispersion vector of ground network. According to the set parameters, it can automatically calculate and display the correction value of the ground impedance and resistance component, and display the size of the power frequency interference and the signal-to-noise ratio in real time. All current measurements (including shunt vector measurement) are compatible with direct measurement, Rogowski coil (flexible current clamp) measurement and clamp-type current transformer measurement. The measurement method does not need to be set manually, and the system automatically recognizes and judges.
Functional features: 1.Including impedance, voltage, current and shunt vector independent measurement modules, which can complete large grounding grid ground impedance, ground resistance, ground reactance, field surface potential gradient, contact potential difference, contact voltage, step potential difference, step voltage , Pole tower shunt, pole tower shunt vector, grounding stake (current pole, voltage pole) resistance, soil resistivity and other grounding parameters measurement, and it is suitable for other occasions that need to measure voltage, current, phase difference and shunt parameters at a specified frequency .2.Impedance measurement simultaneously displays the measured value and correction value of impedance, resistance component, reactance component.3.It can automatically calculate the diversion coefficient, the diversion vector and the actual dispersion vector of the ground network.4.All current measurements of the frequency selective multimeter are compatible with three methods: direct measurement, Rogowski coil (flexible current clamp) measurement and clamp-type current transformer measurement. The measurement method does not need to be set manually, and the system automatically recognizes and judges.5.The anti-interference ability is better than 1000 times the signal amplitude, and the amount of interference and the corresponding signal-to-noise ratio are displayed in real time.6.Configure thermal printer, support internal storage of measurement data and U disk storage.System composition
1. Basic configuration
1) CT5202 frequency selection multimeter 1 set
2) CT5210 high-power frequency conversion signal source 1 set
3) CTGL10 isolation transformer 1 set
4) 1 dedicated lithium battery charger
2. Optional configuration
1) CT5202C current acquisition wireless communication instrument 1
2) Rogowski coil 1 piece
3) 1 set of wireless communication antenna
4) Clamp-on current transformer 1
5) 1 GPC earth network pay-off plate
Technical indicators:
1. Power supply voltage: AC220V, 50Hz (CT5210 high-power variable frequency signal source is compatible with three-phase AC380V power supply)
2. Maximum output power of high-power variable frequency signal source: 10kW
3. Maximum output voltage and current: 0~200V/50A, 0~400V/25A or 0~800V/12.5A, three gears can be switched
4. Continuous working time: full load current 15Min, 50% full load current 60Min
5. Frequency adjustment range: 40~70Hz
6. Step frequency: 1Hz;
7. Waveform distortion rate: ≤1%
8. Anti-interference ability: accurate measurement even when 1000 times the interference;
9. Measuring range: 0~1000Ω
10. Minimum resolution: 0.001mΩ
11. Measurement accuracy: ±(reading×1%±0.01Ω)
12. Data storage: U disk and internal storage (internal can store 100 sets of measurement data)
13. Communication interface: standard RS-232 interface/USB interface
14. Working environment: temperature -10~50ºC, humidity <90%Hangzhou High Voltage Technology Co., Ltd. Is a technological enterprise that independently develops, produces and sells high-voltage test equipment! Mainly produce high voltage switches, circuits, transformer direct resistance, on-load tapping, transformer loss parameters, winding deformation, transformers, arresters, generators, partial discharges, dielectric loss tests, frequency resonance withstand voltage tests, earth grid grounding parameters and shunts Vector, secondary and relay protection testing and other high-voltage electrical test equipment.
The company has more than 20 years of experience in this industry, and has obtained 16 international patents and more than 20 software copyright certifications. Self-built 4000 square meters electrical test building, established high-voltage test center and power engineering service team, long-term service for various voltage level test projects and special test projects, relying on the high-voltage test center, at the same time, a high-voltage test undertaking practical operation training class is opened for electric power Industry practitioners provide professional theoretical guidance and practical teaching.
common problem
1. About us
Hangzhou High Voltage Technology Co., Ltd.is a scientific and technological company integrating R&D, production and sales. It independently develops and produces a series of high-voltage test equipment. It was established in 2002 and has a huge production system and business team!
2. Goods inventory and order transportation issues!
After the order is formally formed, the goods will be dispatched within 10 days under normal circumstances. If the purchase volume is large or the customized products are determined according to the actual situation, the goods will be tracked and fed back to the users from time to time during the cargo transportation!
3. Is quality assurance guaranteed?
Twenty years of R&D and production experience, all products have been inspected by the national measurement station, and the quality is guaranteed
4. After-sales service
We promise that all products will provide free two-year warranty, lifetime maintenance, free service information, and online technical services through email, video, etc.
5. Cooperative countries
The products have been successfully exported to the United States, Europe, India, Japan, Australia, Russia and other countries, and distributors have been established in various countries to provide thoughtful services.
Address:
No. 2-15#, Yongtai Road, Qianjiang Economic Development Zone, Hangzhou, Zhejiang, China
Business Type:
Manufacturer/Factory
Business Range:
Computer Products, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Service, Tools & Hardware
Management System Certification:
ISO 9001
Company Introduction:
Hangzhou High Voltage Technology Co., Ltd. Its registered capital is 30.06 million yuan. The company has been awarded the title of "National High-tech Enterprise", has obtained the certification of ISO 9001 quality management system. The products have been listed in the scientific and technological development projects of new products in Zhejiang Province. It has obtained more than ten national patents and more than 20 software copyright certifications. The products have passed various domestic testing institutions such as the State Grid, the Southern Power Grid and the State High Voltage Measurement Station.
The company has established a production, business management, engineering services and other teams, independently developed and produced various types of high-voltage electrical test equipment and other measuring and testing equipment, long-term service to the state grid, rail transit, energy and chemical power transmission and transformation operation units, high-voltage electrical equipment manufacturing plants, electrical laboratories, Electric power enterprises. It is a comprehensive supplier of professional high voltage electrical test equipment, electronic instrument and equipment manufacturing, test engineering services and international brand agents.
Welcome all electrical test engineers, experts and leaders to visit and guide us!
