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China High Quality Primary Injection Testing Electrical Supplier – GDHL-200A (GDHL-100A) Micro-Ohmmeter new – HV Hipot
General Information GDHL-200A (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. ● At 200A, max. test time can reach 1~999s, which meets various on-site applications. ● Large current output for a long tim... -
OEM Best clip on earth resistance meco make Supplier – 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 Circuit Breaker Analyzer Factory – GDSL-BX-200 Primary Current Injection Test Set – HV Hipot
Features ● Digital control, high anti reference ability. ● Adapts autotransformer regulator which with low power consumption and large capacitance. ● Converter has high permeability core. ● Quick connects, lock design, have good current capability. ● PVC panel. ● Build-in quick plug with high safety. ● Current range can be changed, easy to read. ● Engineering plastics box, IP67 dustproof and waterproof. ● Portable design is suitable for on-site testing. ● Zero start function to prevent the test objects from damage caused by high current impulsing. The equipment only can be started at zero. ● Impulse choosing function: The current value can be outputted directly without zero protection function when the equipment is under the testing for circuit breaker. ● 0-50A AC current can be outp... -
OEM Best uhf detectorDigital Pd Detector Suppliers – GDPD-313M Portable Partial Discharge Detector – HV Hipot
External flexible sensor (for option) Parabolic sensor (wave condenser, for option) TEV and AE method is acknowledged and suitable technology to be used in online partial discharge detection. GDPD-313M uses ultrasonic detection technology (AE) and TEV mode, which can effectively ensure signal sensitivity in the interference on-site environment. It is suitable to detect PD flaw and locate PD signal for switch cabinet etc. Features ● Built-in ultrasonic sensor. electrical fault generates ultrasonic wave at the fault point, and ultrasonic mode transmits the ultrasonic signal through the earphone to scan the area to detect the discharge. Various characteristics of vibration, pop, and hum can be associated with different faults. ● Built-in high-precision TEV sensor, coupled with electrom... -
OEM Best Capacitor 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 ... -
China High Quality Testing Required For Power Circuit Breakers Exporters – GDHL-200A (GDHL-100A) Micro-Ohmmeter new – HV Hipot
General Information GDHL-200A (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. ● At 200A, max. test time can reach 1~999s, which meets various on-site applications. ● Large current output for a long tim... -
China High Quality Cable Test Kit Manufacturers – GD-2134A Cable Identifier – HV Hipot
The purpose of the cable identifier is to accurately identify one of the target cables from multiple cables and avoid serious accidents caused by wrong sawing of live cables. Cable identification starts from the operation of both ends of the cable, it must be ensured that the double number on both ends of the cable is accurate. GD-2134A Cable Identifier is only suitable for on-site identification of de-energized cables. It is strictly forbidden to connect the cable identifier to the running power cable! Features ● Handheld receiver automatically identify and display the results to ensure that the results of cable identification are 100% accurate. Light weight and powerful, easy to carry. ● Suitable for on-site identification of de-energized cables. ● Both transmitter and handheld re... -
OEM Best testing of transformer Suppliers – Partial Discharge Online Monitoring System of Generators – HV Hipot
General Information Generally, partial discharge occurs at a position where the properties of the dielectric material are not uniform. At these locations, the local electric field strength is enhanced, and local electric field strength is too large, resulting in local breakdown. This partial breakdown is not the total breakdown of the insulating structure. Partial discharges typically require a certain amount of gas space to develop, such as gas voids inside the insulation, adjacent conductors, or insulating interfaces. When the local field strength exceeds the dielectric strength of the insulating material, a partial discharge occurs, causing many partial discharge pulses to occur during one cycle of applying the voltage. The amount of discharge delivered is closely related to the n... -
OEM Best ac dc clamp meter Factory – GDF-3000 DC System Earth Fault Detector – HV Hipot
General Information In DC system, there are many earth faults including indirect earth fault, non-metal earth fault, loop earth fault, positive and negative earthing fault, positive and negative balance earth fault, multi-point earth fault. GDF-3000 Earth Fault Tester for DC System locates these earth faults and displays the parameters of system voltage, earth voltage, earth resistance and earth impedance of branches accurately. Functions ● System ground voltage measurement function, the instrument can measure the system ground voltage, negative to ground voltage, system voltage, can achieve 0-300V voltage monitoring range. ● System insulation impedance measurement function, the instrument can measure the positive to ground insulation impedance and the negative to ground insulatio... -
China High Quality Primary Injection Test Tools Manufacturer – GDSL-BX-200 Primary Current Injection Test Set – HV Hipot
Features ● Digital control, high anti reference ability. ● Adapts autotransformer regulator which with low power consumption and large capacitance. ● Converter has high permeability core. ● Quick connects, lock design, have good current capability. ● PVC panel. ● Build-in quick plug with high safety. ● Current range can be changed, easy to read. ● Engineering plastics box, IP67 dustproof and waterproof. ● Portable design is suitable for on-site testing. ● Zero start function to prevent the test objects from damage caused by high current impulsing. The equipment only can be started at zero. ● Impulse choosing function: The current value can be outputted directly without zero protection function when the equipment is under the testing for circuit breaker. ● 0-50A AC current can be outp... -
OEM Best earth resistance tester price Suppliers – GDDT-10U Digital Grounding Down Lead Earth Continuity Tester – HV Hipot
General Information GDDT-10U Earth Continuity Resistance Tester is a highly automatic and portable test equipment. It is applied to the measurement of breakover resistance value among earth connecting cables of substation electrical equipment. The adoption of high-performance single-chip control helps to achieve intelligence of testing process. It is small size, convenient to carry, easy to operate, high-accuracy, fast testing speed, good testing repeatability, clear to read. Features ● The instrument is controlled by high-speed single chip, thus it’s highly automatic and easy to operate. ● Using new power source technology, with many more current steps and wide measuring range. ● Intelligent power management technology, the instrument can work in the state of Min. power, w... -
China High Quality energy meter calibrator Exporters – GDYM-1A Single Phase Electric Energy Meter Calibrator – HV Hipot
Product Description GDYM-1A Single phase Electric Energy Meter Calibrator is multi-parameter measuring instrument which is full digital, mullti-function and high precision. It is not only enable to calibrating the error, but also to measure voltage, current effective value, active power, reactive power, apparent power, power frequency, power factor, phase relationship, etc. It is especially suitable for calibrating the measurement accuracy of Single-phase electric energy meter in the power supply unit. Simple and quick operation, all operating procedures are displayed on the screen. Features ● To calibrate the electric energy meter of measuring system and measure the low voltage ratio. ● Using latest 32 bit 150MHz DPS core technology, 16 bit high precision converter, the error is ...
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