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The grounding device conduction parameter tester is a portable tester with a high degree of automation. The grounding device conduction parameter tester is designed to measure the DC resistance of the portable short-circuit grounding wire and the personal protection grounding wire. The grounding device conduction parameter tester is controlled by a high-performance single-chip microcomputer, and the grounding device conduction parameter tester can realize the intelligent test process. The operation is simple and convenient, the precision is high, the test speed is fast, the retestability is good, the reading is intuitive, and the grounding device is turned on. The parametric tester is an ideal special instrument that meets the requirements of the regulations, which greatly facilitates the development of the test project and improves the working efficiency. The grounding device conduction parameter tester is a portable tester with a high degree of automation. The grounding device conducts the parameter test. The instrument is used to measure the on-resistance between the grounding conductors of various power equipments in the substation. The grounding device conduction parameter tester is controlled by a high-performance single-chip microcomputer. The grounding device conduction parameter tester can realize the intelligent test process, with small size, easy to carry, simple operation, high precision, fast test speed, good retestability, and reading Intuitive, grounding device conduction parameter tester is an ideal dedicated instrument that meets regulatory requirements.
Grounding device conduction parameter tester specification 1, measurement range: 1~200mΩ(25A) 1~600mΩ(10A)
2, test time: 1 ~ 99S (continuous adjustable) ± 5%
3, test voltage: AC <10V
4, test current: AC5 ~ 30A ± 5%
5, broken alarm: AC5 ~ 30A ± 5%
6, alarm resistance value: 1mΩ ~ 200mΩ (AC25A) (continuous adjustable) ± (5% ± 3 words)
1mΩ~600mΩ(AC10A)(Continuously adjustable)±(5%±3 words)
7, the use of conditions: ambient temperature 0 ~ 40 °C
8, relative humidity: ≤ 80% RH
9, power supply: AC220V±10%50HZ
10. Dimensions (mm): 350(w)*280(d)*145(h)
The grounding device conduction parameter tester meets the requirements of national standard GB6587-86 "General Principles of Environmental Testing for Electronic Measuring Instruments" and GB6593-86 "Quality Inspection Rules for Electronic Instruments".
The grounding device conduction parameter tester is suitable for measuring the resistance value between the housings of various motors, electrical appliances, instrumentation, household appliances, and the power supply ground. The instrument has a second-level test current (R <200mΩ (AC25A) or 200mΩ <600mΩ (AC10A)), and the test time is set (1~99S). When the measured value exceeds the set value, the ground device conduction parameter tester has a sound and light alarm function, and there is an overcurrent (AC> 30A) protection function. Grounding device conduction parameter tester refers to the grounding device should be grounded between various electrical equipment, grounding device and the various parts of the electrical connection between the electrical connection, that is, DC resistance value, also known as electrical conductivity. The reliable and effective connection between the grounding of the power equipment and the ground network is the fundamental guarantee for safe operation of the equipment. The ground lead wire is the connection part between the power equipment and the ground network. During the long-term operation of the power equipment, the connection may be affected by moisture and other factors, and the node may rust and even break, causing the ground lead and the ground The resistance of the connection point of the grounding grid is increased, which can not meet the requirements of the power regulation, so that the device may have unsafe hidden troubles during operation, and when it is serious, it will cause the device to lose ground operation. Underground grounding electrodes of the grounding device and its connection parts may also be rusted or even broken. Therefore, it is necessary to test the electrical integrity of grounding devices regularly.
The grounding device conductivity parameter tester power industry standard DL/T475-2006 "Guidelines for measuring characteristics of grounding devices" specifies that electrical continuity should be measured using a dedicated instrument. The grounding device conduction parameter tester has a resolution of 1 mΩ. The degree is not lower than 1.0. The grounding device conduction parameter tester is a portable tester with a high degree of automation. It is specially used for the electrical integrity test of grounding devices, and its technical specifications are all or better than the relevant standards. The grounding device conduction parameter tester is simple and convenient in operation, high in accuracy, fast in test speed, good in retestability, and intuitive in reading. The grounding device conduction parameter tester is an ideal special instrument that meets the requirements of the regulations, and the grounding device conducts the parameter test. The instrument greatly facilitates the development of test projects and improves work efficiency.
The grounding device conduction parameter tester is an ideal dedicated instrument that meets the requirements of the regulations.
The grounding device conduction parameter tester is a connection part between the power equipment and the ground network. During the long-term operation of the power equipment, the connection may be affected by dampness and other factors, and the node may be rusted or even broken, resulting in ground lead. The resistance of the connection point between the wire and the main grounding network increases, which can not meet the requirements of the power regulation, so that the grounding device conduction parameter tester has unsafe hidden troubles during operation, and in severe cases it will cause the equipment to lose ground operation. The newly promulgated "Preventive Test Procedures for Power Safety Industrial Appliances" requires that a group of DC resistance tests must be made periodically on the portable short-circuit grounding wire and the personal protection grounding wire.