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China High Quality Partial Discharge Equipment Supplier – 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...
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China High Quality Cable Connections 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-...
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China High Quality Capacitor Cap Manufacturers – AC Inductance Resonance Test System for CVT – HV Hipot
GDTL AC Resonant Test System for CVT is series resonance with power frequency specially for CVT. It is smaller size and more lighter weight than traditional device, meet various CVT inspection requirements of voltage with 35kV, 66kV, 110kV, 220kV, 330kV, 500kV. According to customer’s requirement, the reactor can be divided into fixed and adjustable reactor. Features ● Small size, light weight, simple wiring. ● Dry or Oil type reactor, high mechanical strength, good insulation, high reliability. ● Large capacity margin, good output waveform, easy to operate. ● Fully protection function: zero protection, over-voltage protection, over-current protect functions.
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OEM Best how to measure flash point Manufacturers – GDOH-II insulating Oil Gas Content Tester – HV Hipot
General Information GDOH-II Insulating Oil Gas Content Tester is a new generation tester adopts imported high accuracy sensor and the newest sensor technology. It is based on the DL423-91 power industry standard and relevant national standards. It is more practical, more stable and reliable in performance, easy to operate and more suitable for the determination of gas content in ultra-high voltage oil-filled equipment. It is an ideal test equipment for laboratory. Features ● The all-metal structure avoids the problems of fragility and poor sealing of the glassware tester. ● The application of high precision and high stability imported differential pressure sensor makes the test data more accurate and repeatable. ● The test circuit contains the sensors that measure atmospheric pre...
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China High Quality Timing Test Of Circuit Breaker Supplier – GDZK-IV Vacuum Degree Tester for Vacuum Breaker – HV Hipot
Features ● Measure vacuum degree in vacuum interrupter for every types of breakers. ● Electromagnetic measuring method, Accurate and Reliable. ● No need to dismantle the vacuum breaker in measurement. ● 128*64 pixel LCD screen, easy to operate. The test results are directly compared with the standard values to determine whether they are qualified;Save, print and check testing data. ● RS-232 port, connecting with PC to download vacuum degree-ionic current curve, to estimate lifespan. ● Light weight, Portable. Specifications ● Power Supply: AC220V ± 20%, 50Hz. ● Testing Range: 10-5 ~10-1Pa. ● Electric field Voltage: 20kV. ● Magnetic field Voltage: 1600V. ● Accuracy: 20%-25% at 10-5 ~10-4. 15%-20% at 10-4 ~10-3 10%-15% at 10-3 ~10-2 5%-10% at 10-2 ~10-1 ● Ambient Temperature: -1...
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China High Quality Tg Delta Manufacturers – VLF AC Hipot Test Set – 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...
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OEM Best moisture measurements Exporters – Transformer Oil Gas Chromatography Online Monitoring System – HV Hipot
General Information GDDJ-DGA Transformer Oil Gas Analyzer is an online monitoring device for dissolved gas in transformer oil based on gas chromatography technology. Potential fault are determined, release alert as per preset value through expert diagnosis system. The device adopts distributed control sampling technology and has self-diagnosis and self-recovery functions. Each function module is weak coupling, function independent, adopting rack structure, easy for engineering maintenance. Features ● Maintenance-free, no need to replace gas cylinder. ● On-line detection the concentration and growth rate of H2, CO, CO2, CH4, C2H4, C2H2, C2H6. ● Modular design and compact structure, easy for maintenance, with high expansibility, can be easily integrated to other monitoring equipmen...
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OEM Best Voltage Pulse Generator Suppliers – GDCY-20B 20kV Impulse Voltage Tester (Basic Type) – HV Hipot
GDCY-12B Programmable Automatic Impulse Voltage Tester is mainly based on TB/T 2653, GB/T 17627, GB/T 16927, GB14048, GB7251, GB/T 16935, IEC 61730, GB4706, GB3048, JB/T 7083 and other standard requirements. It is mainly used for safety performance (dielectric performance) detection of low-voltage electrical appliances, high and low voltage switches, solar energy, electricity meters, relays, leakage protectors, etc. The impulse output can be controlled by computer, and the test report can be printed and generated. (Picture only for reference first.) Features ● Manual/automatic/programmable mode: Manual mode adjusts impulse voltage manually by adjusting knob; Automatic mode adjusts impulse voltage automatically by the system; Programmable mode uses computer to control impulse vo...
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OEM Best Current Injection Test Set India Manufacturers – 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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OEM Best Relay testers Factories – GDJB-6000D Smart Substation Relay Protection Test System – HV Hipot
GDJB-6000D is equipped with high-performance power amplifier and based on the powerful PowerPC+X86 platform. It adopts modular design and have powerful functions, high precision, small size and light weight features. It can test the function and performance of merging unit, relay protection device, measurement and control device, intelligent terminals etc. Very suitable for power plants, substations, various scientific research units and equipment manufacturing enterprises. Features ● Smart Test Module Intelligent test template editing is supported. Test items can be randomly added during the test process and saved as reusable test project files to improve the test efficiency in the final stage of inspection and elimination. ● Automatic testing With on-site protection and digital pr...
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China High Quality Testing Capacitors In Circuit Factories – Partial Discharge Test System GDYT series – HV Hipot
GDYT is mainly used for testing frequency voltage insulation level of various insulation materials, insulation structure and electrical products, also as partial discharge frequency testing power supply for testing object such as transformer, mutual inductor and lightning arresters. It widely used in electrical manufacturing, power operation departments, research institutes and universities. It includes below components 1. Hipot Test Control Unit GDYD 2. PD-free Gas type transformer YDQW 3. Coupling capacitor 4. Protective resistor 5. Isolation filter LBQ 6. Partial discharge detector Features ● Advanced PD-free epoxy insulating tube, small partial discharge capacity. ● Low impedance voltage, better than national standard. ● Automatic co...
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China High Quality Earth Fault Loop Impedance Test Factory – 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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