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China High Quality price of relay testing machine Suppliers – GDJB-II SECONDARY CURRENT INJECTION TEST SET – HV Hipot
Features A. Working conditions 1. Power supply: AC 220V±10%,50Hz 2. Working environment: Temperature -10℃~40℃; Humidity: ≤85% 3. Atmosphere: 86-106kPa B. Output power supply 1. AC voltage: 0-220V/3A Adjustable 2. AC current: 0-100A/7V (200A can be customized); 0-20A/25V Adjustable; 0-5A/5V Adjustable 3. DC voltage: 0-220V/3A Adjustable 4. DC current:0-20A/25V 5. Fixed voltage output: DC 24V/48V/110V/220V 6. Current/Voltage accuracy: ±1%. C. Performance Index 1. Ammeter and voltmeter: 41/2 digit. 2. Digital millisecond meter: 0-99.9999s(999.999s can be customized) Resolution: 0.1ms. D. Functions 1. Measure relay: Measure start value, return value and drop-off to pick-up ratio of current, voltage relay. 2. Time relay: Measure start value, return value and action time. 3. Intermed...
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China High Quality insulation test Suppliers – GDCR3200C Double Clamp Multifunctional Earth Resistance Tester – HV Hipot
General Information GDCR3200C Double Clamp Multifunctional Earth Resistance Tester is specially designed and manufactured for on-site measurement of grounding resistance, soil resistivity, grounding voltage, grounding line leakage current, AC current and DC resistance. The instrument adopts advanced digital processing technology, with 2-wire method, 3-wire method, 4-wire method, selection method, double clamp method and other measurement methods; Import FFT (Fast Fourier Transform) technology, AFC (Automatic Frequency Control) technology, with unique anti-interference ability and environmental adaptability, high repeated test consistency, ensuring high precision, high stability and high reliability for long-term measurement.The instrument used large caliber current clamp design, can ...
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China High Quality megger pf tester capacitance Suppliers – GD2000D Insulation Resistance Tester – HV Hipot
General Information GD2000D digital insulation resistance tester produced by our company uses an embedded industrial single chip real-time operating system. The digital analog pointer and digital field code display are perfectly combined. This series of meters has a variety of voltage output levels (250V, 500V, 1000V, 2500V, 5000V, 10000V), large capacity, strong anti-interference, analog pointer and digital synchronous display, AC and DC dual-use, simple operation, automatic calculation of various insulation indicators (absorption ratio, polarization index), various measurement results with anti-power-down function, etc. It is an ideal test instrument for measuring the insulation resistance of large-capacity transformers, transformers, generators, high-voltage motors, power capacito...
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OEM Best Cable Identifiers Factories – GD-7018A Optical Fiber Identifier – HV Hipot
The GD-7018 series optical fiber pipeline identifier can accurately locate and meaure depth of the underground pipelines, cables and optical cables under the condition of without digging, and accurately find the damage points of the outer coating of the underground pipelines and the location of the underground cable fault points. The instrument incorporates the most advanced technologies such as ultra-narrow band filter, Bluetooth wireless communication, GPS positioning, automatic data mapping by professional data analysis software and automatic generation of test reports. The detection and inspection of various kinds of metal pipelines, pipeline management and maintenance, municipal planning and construction, pipeline inspection in power supply and other departments is one of the neces...
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OEM Best earth continuity test Manufacturers – Online Insulation Monitoring Device for DC System – HV Hipot
General Information GDF-5000/OL Online Insulation Monitoring Device for DC System is used for real-time online monitoring of insulation status of DC bus and branch. This device adopts the detection method of DC balanced resistance. It does not produce any AC or DC interference signal to busbar, and will not cause the artificial insulation resistance drop. It is suitable for power plants and substations of any voltage level. GDF-5000/OL’s unique stability and anti-distributed capacitance make it more suitable for bus system under complex working conditions, standard instrument structure, compact size, convenient installation and better applicability. GDF-5000/OL has LCD display, full software function control, perfect man-machine interface, easy operation and use. Features ● ...
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China High Quality Current Injection Kit Manufacturer – GDKC-15 Series Circuit Breaker Analyzer 2020.12 – HV Hipot
General Information High voltage circuit breaker is one of the most important control equipment in the power system. GDKC-15 Series is used to test the dynamic characteristics of high voltage circuit breaker. It is easy to operate, with high accuracy. GDKC-15 Series GDKC-15A GDKC-15B GDKC-15C GDKC-15D GDKC-15E GDKC-15F GDKC-15G GDKC-15H Metal contact 12 12 12 12 12 12 12 12 Closing resistance 6 6 6 6 6 6 6 Graphite contact 3 3 3 3 6 Double-ended grounding 3 3 3 6 Dynamic resistance(Pre-insertion resistor) 1 1 3 3 3 3 6 Static resistance 1 1 3 3 3 3 6 Ground resistance 3 6 Features ● It is suitable for the mechanical test of all types of SF6 switches, GIS combination appliances, vacuum switches and oil switches. ● Strong an...
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OEM Best Electrical Pd Exporters – GDPD-306M Portable Ultrasonic Partial Discharge Detector – HV Hipot
GDPD-306M is widely used in the partial discharge detection of power systems. Including high voltage switchgear, ring mains, voltage/current transformer, transformer (include dry type transformer), GIS, overhead lines, cables, and other equipment insulation state detection. The following indicators are used to measure the degree of discharge of electrical equipment: Partial discharge intensity detection: By measuring the discharge signal in a power frequency cycle, the intensity of the partial discharge is characterized according to the maximum value (dB) in the discharge pulse sequence. Partial discharge frequency detection: The device measures the discharge signal within a power frequency cycle, extracts the discharge pulses and characterizes the frequency of partial discha...
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China High Quality protective relay test set Manufacturer – GDJB-II SECONDARY CURRENT INJECTION TEST SET – HV Hipot
Features A. Working conditions 1. Power supply: AC 220V±10%,50Hz 2. Working environment: Temperature -10℃~40℃; Humidity: ≤85% 3. Atmosphere: 86-106kPa B. Output power supply 1. AC voltage: 0-220V/3A Adjustable 2. AC current: 0-100A/7V (200A can be customized); 0-20A/25V Adjustable; 0-5A/5V Adjustable 3. DC voltage: 0-220V/3A Adjustable 4. DC current:0-20A/25V 5. Fixed voltage output: DC 24V/48V/110V/220V 6. Current/Voltage accuracy: ±1%. C. Performance Index 1. Ammeter and voltmeter: 41/2 digit. 2. Digital millisecond meter: 0-99.9999s(999.999s can be customized) Resolution: 0.1ms. D. Functions 1. Measure relay: Measure start value, return value and drop-off to pick-up ratio of current, voltage relay. 2. Time relay: Measure start value, return value and action time. 3. Intermed...
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China High Quality Current Injection Test Kit Manufacturer – GDHL-100A Micro-Ohmmeter – HV Hipot
General Information GDHL-100A Micro-Ohmmeter is widely used to measure loop resistance and contact resistance for weld joints, cables, and various HV switches within power industry. It uses intelligent power test system “Smart-Quick”, which is granted software copyright, and advanced detection technology. Features ● Adopt high-precision constant current power supply, automatic rising current mode without manual adjustment, the test is fast and accurate. ● Use four-terminal wiring method, effectively eliminate the interference produced by test cable resistance; ● Wide range, high accuracy, the resistance measurement range is up to 99mΩ. ● Multiple test times can be set, which meets various on-site applications; ● Large current output for a long time, burning the switch ...
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China High Quality Dc Tester Manufacturers – 30kVA.200kV Automatic AC.DC Hipot Test Set GDYD-2030A – HV Hipot
Features ● 7inch color LCD screen, with PLC automation control. ● HV Voltage, LV voltage, LC current measured at the same time, with high precision sensor and high-performance collection chip. ● Automatic mode and manual mode for option. ● Display HV voltage, LV voltage, LV current, time, and withstanding result. ● Over-voltage and over-current protection. Output voltage, HV current upper limit, LV current upper limit and timing can be set. ● Zero-starting function. Test can be proceeded after the voltage is back to zero. ● Store up to 8000pcs data in 3months. It has USB port to upload data to USB disk. ● When setting voltage is arrived, it will be timing automatically. After timing, voltage will be back to zero. ● When the LV current is over setting value, the voltage will be cut of...
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China High Quality Micro Ohm Meter Supplier – GDHL-200B / GDHL-500B / GDHL-600B Contact Resistance Tester (Microhm meter) – HV Hipot
Features ● Output high-current continuously. ● Quick and accurate test. Test current is generated from high-precision 100A/200A switching mode constant current power supply, no need for manual adjustment. ● Adopts four-terminal wiring method. The influence of test line resistance on test results is effectively eliminated. ● Stable performance. There is over-heat protection crcuit designed for long-time working. ● Light weight, easy to carry and operate. Specifications GDHL-500B Contact Resistance Tester (Micro-ohm Meter) Specifications Accessories Main unit 1 set Test wire 4 pieces Power cord 1 piece Print paper 2 rolls Ground cable 1 piece User’s guide 1 copy Test Report 1 copy GDHL-600B Contact Resistance Tester (Micro-oh...
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OEM Best Unit To Measure Capacitance Supplier – GDZJ-30S Turn-to-Turn Surge Withstand Tester – HV Hipot
General Information Specifications Input voltage 220V±5%; frequency 50/60Hz±2% Measurement range 0-30kV, continuous adjustment, ±5% Trigger times 6.25 time/s - 50 times/s Waveform rising time 0.1-0.5μS Capacitance error (+0.3) / (-0.1) µs Impulse capacitance 0.01μF -0.1μF Max output energy 60J Power consumption 1000VA Insulation resistance Insulation resistance between power input terminal and tester ≥20MΩ Dielectric strength 1500V/50Hz at 1min, there is no flashing and breakdown for withstand voltage test. Temperature 0-40 degree Relative humidity ≤80% at 40 degree Waveform capacitance deviation ±3% Dimension 650*550*1700mm Weight 100kg Application Turn to turn withstand voltage test ...
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