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OEM Best Capacitance Measurement Suppliers – AC High Voltage Test Sets for GIS – HV Hipot
Applications ● Transformer ● GIS system ● SF6 switchgear ● Cables ● Bushing ● Insulator ● CT/PT ● Other capacitive devices Features ● Small temperature rises at rated load. Dry or Oil type reactors, high mechanical strength, good insulation, nice and reliable. ● Adjustable capacity of frequency control source. Strong protection, good stability. With multiple working mode, easy to operate. ● With 220V or 380V single phase power, convenient for on-site power sourcing. ● Flexible configuration. Different type reactors for optional, meet different test object requirements. Multifunctional, cost effective. Specifications ● Rated output voltage: based on different test objects. ● Output frequency: 20- 300Hz. ● Waveform: pure sine wave, THD <1.0%. ● Max. capacity: 1000kVA and below. ● Duty ... -
OEM Best earth tester model Supplier – 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 ... -
China High Quality how to do dewpoint test Manufacturer – GDBS-305 Automatic Flash Point Closed Cup Tester – HV Hipot
General Information GDBS-305 automatic closed cup flash point tester is the device testing closed cup flash point for petroleum products. It use module design which one host can control several testing furnace, to test different samples at the same time or separately. The testing furnace port can be connected to the host disorderly. It widely used in the field of railway, air company, power, petroleum and research department. Features ● 320*240 TFT LCD screen. ● With high speed signal processor control, reliable and high accuracy. ● One host can control several test furnace to test several samples at one time, which will save testing time. ● Automatic ignition with no gas source ignition mode. ● Built-in atmosphere pressure sensor, auto-measure and calibrate result. ● Self-adapti... -
China High Quality harga digital megger Factory – 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 Electrical Cable Tester Supplier – 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-... -
OEM Best Live Wire Detector Factories – GD-2136H Cable Fault Locating System – HV Hipot
GD2136H Cable Fault system is important tool to maintain all kinds of cables. It uses various detection way to test cable faults, which is suitable for different levels voltage power cables and communication cables. The system contains below units: 1. GD-2131H Impulse Generator 2. GD-2132 Cable Fault Locator 3. GD-2133 Cable Fault Tester 4. Other accessories GD-2131H Impulse Generator It’s used to generate HV impulse when using impulse flashover method to detect high impedance fault. Features ● Strong burning ability, max.burning power is 1000W, breakdown point can be burned in short time and the resistance of breakdown point is decreased. ● If working together with GD-2133 Cable Fault Tester, there are two locating ways: a. Low voltage pulse: If only using GD-2133, open circ... -
China High Quality Voltage Tester Supplier – VLF AC Hipot Test Set 80kV – HV Hipot
Withstand voltage test is an essential preventive test for electrical equipment. It is divided into two parts: AC and DC withstand voltage test. AC test can be further divided into power frequency, variable frequency and 0.1Hz very low frequency test, among which the last one is highly recommended by IEC, due to its remarkable advantages. Following is a comparison for DC, Power Frequency, Variable Frequency, and 0.1Hz test. Aspects DC Power Frequency Variable Frequency 0.1Hz Equivalency poor good good good Insulation Damage strong slight slight slight Operation Safety relatively low relatively low relatively low high Wiring Difficulty complicated complicated most complicated simple Volume smallest largest large smal... -
OEM Best Oil Tension Tester Manufacturers – GDCP-510 Oil Freezing Point Tester – HV Hipot
General Information GDCP-510 Low Temperature Freezing Point Tester is compliant with GB/T 510 “Determination of Solidification Point for Petroleum Products” and GB/T 3535 ”Petroleum Products―Determination of Pour Point. “(ISO 3016) It adopts compressor refrigeration, enclosed bath, equipped with tilt bracket and automatic digital display controller, which uses fuzzy control and PID self-tuning technology, performance is more stable. Specification Temperature range Room temperature to -75ºC. Accuracy ±0.1ºC Refrigeration Germany imported sensor, cascade compressor refrigeration, with new type refrigerant, more quickly and environment friendly. Structure Two-slot & four-hole Temperature correction and display based on automati... -
China High Quality Capacitance Bridge Circuit 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 tensile strength machine Factories – GDZL-503 Automatic Interfacial Tension tester – HV Hipot
Intermolecular forces will generate interface tension and surface tension of liquids. The value of tension reflects liquid sample’s physics and chemical properties, which is one of the most important index for product quality. GDZL-503 automatic interfacial tension tester tests kinds of liquid surface tension and interface tension according to ring method which is simple and accurate. It is widely used in electric, petroleum, chemical,medicine, food and teaching filed. Features ● Exclusive and quick response electromagnetic balance sensor is adopted, to improve the accuracy of the measurement and degree of linearity. ● Only using one point calibration, to solve the problem of previous sensor which needs multi-point calibration. It is no need to use zero potentiometer and full s... -
OEM Best pd transformer Supplier – GD-610C Remote Ultrasonic Partial Discharge Detector – HV Hipot
Partial discharge is one of the common reasons of medium and high voltage equipment and cable insulation failures. Partial discharge testing can detect harmful defects and help identify potential future failures. The GD-610C remote ultrasonic partial discharge detector uses an ultrasonic spectrum probe (sensor) to collect ultrasonic signals and analyze the signal to diagnose the charged detection, it is a diagnosis device for the accident of the distribution line. The device determines the line position and the fault type of the faulty hidden line when it is live. After collecting the ultrasonic abnormal signal, it transmits signals to the host, converts it into an audible sound signal and waveform, and finally diagnoses the type of the hidden danger and grade by the analysis software. ... -
OEM Best Ct Primary Injection Test Iec Stadred Supplier – 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...
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