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China High Quality Portable High Voltage Impulse Generator Manufacturer – GDOT-100D 100kV Insulation Oil Tester – HV Hipot
General Information In power system, railway system and large petrochemical industrial enterprises all have a lot of electrical equipment, its internal insulation is mostly oil-filled insulation type. Dielectric strength test for insulating oil is a routine test which shall be measured. In order to meet the market needs. Our company self-developed and produced GDOT series dielectric strength tester for insulation oil according to national standard GB/T5072002, industrial standard DL429.991 and the latest electric power industry standard DL/T846.7- 2004. The instrument use single chip microcomputer as the core, to achieve full automatic testing and high precision measurement, greatly improves the work efficiency and also reduce the labor intensity of the workers greatly. Featu... -
OEM Best Professional Cable Tester Manufacturer – GD-4138H Cable Fault Locating System – HV Hipot
GD-4138H Mobile Cable Fault Locating System is important tool to maintain all kinds of cables. It is compatible equipment that can trace, locate the underground cables, with fault distance measurement and HV generation. As it is movable device, it is convenient to carry on-site. If acoustic locator is used together, it can locate accurate position of cable fault point. Application is underground cable, aerial cable, power cable, local cable, communication cable and fiber cable. Typical fault to be detected includes ● High impedance flash-over fault ● High impedance leak ● High/low resistive grounding ● Short-circuit fault ● Open-circuit fault ● Poor connection/Disconnection GD-4138L system includes ● GD-4138H main frame (Coupling device, Sphere gap, HV generator are inside) ● GD-... -
China High Quality Megger 500 volt Manufacturers – GDF-3000A DC System Earth Fault Detector – HV Hipot
General Information DC system insulation faults, DC mutual faults and AC power failures are faults that are prone to occur and are harmful to the power system, and endanger the normal operation of the power system. In order to better help field maintenance personnel to quickly and accurately find DC faults, our company has developed a DC fault finder by years of efforts and summing up a large number of field experiences. The DC grounding finder uses a high-precision current clamp meter to detect and locate faults using the DC current difference in the fault loop. The fast FFT transform technology is introduced into the DC fault finding device, to detect various types of insulation faults, DC mutual faults, and AC power failures in DC systems with different voltage level (24V (optiona... -
OEM Best Electrical Pulse Generator Suppliers – GD6800 Capacitance and Dissipation Factor Tester – HV Hipot
GD6800 measures the capacitance and dielectric loss factor (tgδ) of high voltage electric equipment. It is integrated structure, built-in dielectric loss test bridge, variable frequency adjustable power supply, boosting transformer and SF6 standard capacitor. High voltage source is generated by internal inverter of the instrument, which is used for testing test object after transformer boost. If adding a insulation cup and temperature control device, dielectric loss of insulating oil can be tested. Features ● Touch LCD screen display. ● Calendar chip and large storage inside. Save testing result according to time order, check history record and print the result. ● The instrument data can be exported through U disk, and can be used to view and manage the data through the software on P... -
China High Quality Low Resistance Tester Manufacturer – GMDL-02A HV Circuit Breaker Analog Device – HV Hipot
General Information GMDL-02A high-voltage circuit breaker simulation device is manufactured using the principles of large-scale field programmable gate arrays, power electronic devices with protection, etc. The open coil is designed according to an independent loop, which can simulate the three-phase and split-phase operation of the voltage level of 6-110KV. The action behavior of the single open coil circuit breaker is suitable for the selection of power systems, industrial and mining enterprises, scientific research institutes, professional colleges, and protection manufacturers. It is used as a substitute for actual circuit breakers in the transmission test of the entire system of relay protection and automatic devices with switches. The action is accurate, reliable, and the numbe... -
OEM Best megohmmeter Manufacturers – GDWR-5A Earth Resistance Tester for Ground Grid – HV Hipot
Product Description GDWR-5A Earth Resistance Tester is a high-precision test instrument used in various fields such as substations for testing grounding resistance and related parameters. The instrument has the characteristics of small volume, light weight, convenient carrying, strong anti-interference performance and high accuracy. The instrument is an integrated structure, built-in variable frequency power supply module, and the output power supply is continuously variable frequency adjustable. The frequency can be changed to 45Hz or 55Hz, and the built-in high-speed processor core adopts high-end digital filtering technology, which effectively avoids the interference of the power frequency electric field to the test, and fundamentally solves the problem of accurate measurement und... -
China High Quality Sf6 Gas Detector 0.1 Ppm Factories – GDFJ-311M SF6 Gas Decomposition Product Tester – HV Hipot
General Information GDFJ-311M SF6 Gas Decomposition Product Tester is a portable device designed to measure SF6 gas decomposition product. The core component with electrochemical sensor from Membrapor to test SF6 gas decomposition product. Besides, we also adopt professional hardware chips and excellent software algorithms of STMicroelectronics. Application Decomposition product analysis of SF6 gas insulated electrical equipment Quality detection of recycled SF6 gas R&D use Reference standard DL/T 639-1997: Safety and Protection Guide for Operation Test and Maintenance Personnel of SF6 Electrical Equipment. Guodian No.72 Annex 3[1999] Measures for Quality Supervision and Management of High Voltage Switchgear. GB/T 17626: Electro-magnetic Compatibility – Testing and M... -
China High Quality megger earth tester Manufacturers – Online Monitoring System of Circulating Current on Cable Sheath GDCO-301 – HV Hipot
General Information Cables above 35kV are mainly single-core cables with metal sheath. Since the metal sheath of the single-core cable is hinged with the magnetic field line generated by the AC current in the core wire, the two ends of the single-core cable have a high induced voltage. Therefore, appropriate grounding measures should be taken to keep the induced voltage within the safe voltage range (usually no more than 50V, but no more than 100V with safety measures). Usually, the metal sheath of short line single-core cable is grounded directly at one end and grounded through gap or protection resistor at the other end. The metal sheath of long line single – core cable is grounded by three – phase segmental cross – connection. No matter which kind of grounding me... -
OEM Best Earth Loop Impedance Test Factory – GDSL-A Automatic 3-phase Primary Current Injection Test Set with Temperature Test – HV Hipot
Features ● Built-in high configuration industrial control computer, the programmable logic controller (PLC) as the central processor, real-time scan of AC signal, to achieve comprehensive monitoring and closed-loop control, and design password settings management, only the personnel who gets corresponding operation authority, can carry out operation of certain functions. ● Color LCD touch screen. Using intelligent sensor based on field bus technology and realize the full digital data transmission, display operation unit is touch type color LCD screen, full English menu, the interface is clear and intuitive, the operation is simple and convenient. Test without any auxiliary equipment, automatic control, fast, simple and convenient. ● Automatic and manual test mode, with automatic constan... -
OEM Best partial discharge test Supplier – GDPD-414 Portable Partial Discharge Detector – HV Hipot
Main unit UHF sensor, round type, suitable for GIS UHF sensor, rectangle type, suitable for power cable, transformer, switchgear HFCT, suitable for power cable, transformer TEV sensor, suitable for switchgear Ultrasonic sensor, suitable for transformers, switchgear Above pictures are only for reference first. The GDPD-414 Portable (GDPD-414H handheld) Partial Discharge Detector adopts smart quick intelligent power test system (Soft No. 1010215, trademark registration number 14684781 (14684481)). It can flexibly configure various sensors according to different products to be tested. TEV, ultrasonic and HFCT are suitable for partial discharge detection of high-voltage switchgear and ring network cabinet; Ultrasonic and UHF are suitable for detecting G... -
China High Quality Tan Delta Of Transformer Oil Factory – DC Hipot Test Set GDZG-S – HV Hipot
Features ● Electronic control and tune, easy to operate. ● The date of voltage and current are recorded in the panel, reading without conversion. ● One minute timing and tip function. ● Perfect overvoltage and over-current protection function inside, also zinc oxide overvoltage protection outside, which ensure safety of generator. ● Both control unit and doubler packed with special shockproof aluminum alloy cabinet, easy to move. ● Portable design, suitable for on-site testing. Specifications Items(kV/mA) parameter 50/100 50/120 60/150 60/200 60/300 Output voltage(kV) 50 50 60 60 60 Output current(mA) 100 120 150 200 300 Output power(W) 5000 6000 9000 12000 18000 Voltage measurement error ≤1.0% ±1digit Current measu... -
OEM Best overvoltage protection device Factory – GDYZ-301 Zinc Oxide Surge Arrester Tester – HV Hipot
Features 1. 800*480 color LCD touch screen, with high speed thermal printer. 2. Graphic display, intuitive interface, easy to operate and use on-site. 3. Long distance wireless transmission. PT signal wireless transmission distance more than 400m (2000m can be customized). 4. Suitable for testing in various situation such as lightning arrester with or without electricity, laboratory. 5. Test three phase current, three phase voltage at the same time, more efficient. 6. No strong electricity inside, voltage not more than 12V. Current and voltage sensors are completely isolated, safe and reliable. 7. Support various voltage sampling: 1. Wired; 2 wireless; 3. Non-voltage; A. Wire: digital signal transmission with cable which the signal is from PT metering winding; B. Wireless: digital s...
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