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China High Quality relay test system Manufacturer – GDJR-200D Single Phase Electronic Thermal Relay Calibrator – HV Hipot
Standard compliance GB/T 14598.15-1998 Electric Relays Part 8: Thermal Electrical Relays DL/T 624-1997 Technical Specification of Test Equipment Based on Micro-computer for Relaying Protection DL/T 846-2004 General Technical Specifications for High Voltage Test Equipments DL/T 596-2005 Preventive Test Code for Electric Power Equipment GB50150-2006 Electrical Equipment Installation Engineering-standard for Hand-over Test of Electric Equipment GB1094.1-GB1094.6-96 Degrees of Protection Provided by Enclosure (IP Code) GB2900 Electro-technical terminology GB/T16927.1~2-1997 High Voltage Test Techniques GB4793-1984 Safety Requirements for Electronic Measuring Apparatus GB191 Packaging-Pictorial Marking for Handling of Goods GB/T.311-1997 Insulation co-ordination for... -
OEM Best ac dc voltage tester, Manufacturer – PD free Variable Frequency Test System – HV Hipot
GDYT-350kVA/70kV PD free Resonant Test System is composed of PD free variable frequency power supply, HV measuring box, excitation transformer, isolation transformer, Resonant reactor, and capacitive voltage divider. This test system does not have the problem of excessive starting current. Using a smaller capacity power supply can complete a test equivalent to 30 to 60 times of the power supply, which greatly alleviates the problem of insufficient capacity of the field test power supply. Features ● Safety and reliable. It has many functions, including discharge and breakdown protection, over-voltage and over-current setting protection, test power off protection, zero protection, over-heat protection etc. When any protection happened, the system will immediately cut off output and po... -
OEM Best grounding tester 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... -
OEM Best Testing Equipment Vendors For Current Transformers Suppliers – GDHG-201P CT/PT Analyzer – HV Hipot
Features ● Full function and can satisfy all kinds of CT (protection CT, measuring CT, TP) test requirements, such as excitation characteristic test, turn ratio, polarity, secondary winding resistance, secondary burden, ratio error, angular difference and etc. Also can used to test excitation characteristic, turn ratio, polarity, secondary winding resistance, ratio error, angular difference and etc of all kinds of PT. ● Field verification of CT does not require standard current transformers, current injector, load bank, voltage regulating controller and large current cables. Very simple test wiring and operation are used to realize the current transformer verification, which greatly reduces the work intensity and improves the work efficiency, and facilitates the field verification of... -
China High Quality Vacuum Breaker Tester 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... -
China High Quality protection relays tester Suppliers – GDJB-6000M Smart Substation Relay Protection Test System – HV Hipot
GDJB-6000M Smart Substation Relay Protection Test System is a new generation of intelligent relay protection tester designed according to “Smart Substation Relay Protection Technical Specifications” and “Smart Substation Technical Guidelines”. It can not only realize the full function test of the optical digital protection device (IEC61850, smart digital station), but also carry out full function test on the traditional protection device (conventional station). GDJB-6000M is a portable new product independently developed through the use of technologies such as embedded real-time operating systems, high-performance embedded processors, and large-scale logic devices, combined with power field conditions and numerous power user experiences. It is widely applicable t... -
China High Quality Standard Capacitor Exporters – 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... -
China High Quality automatic flaspoint tester Supplier – GDW-102 Oil Dew Point Tester (Coulometric Karl Fischer Titrator) – HV Hipot
Coulometric Karl Fischer technology is applied to measure precisely trace moisture the measured sample contains.The technology is widely used for accuracy and cheap test cost.The Model GDW-102 measure precisely trace moisture on liquid, solid and gas samples according to the technology. It’s used in electricity, petroleum, chemicals, foods and so on. Features ● Use improved PWM electrolysis circuit to reduce the power dissipation of the instrument. ● High precise measuring electrode signal and circuit detection make the electrolytic end decision quickly and precisely with strong anti-interference ability. ● Use methods of electrolyte blank current compensation and electrolyte balance drift compensation to devise testing result. ● Built in three calculation formula to generate r... -
China High Quality Oil Tension Tester Suppliers – GDSZ-402 Automatic Acid Value Tester – HV Hipot
General Information Automatic Acid Value Tester is designed for testing acid value for transformer oil, turbine oil and fire resistant oil etc. PC control system can improve the work efficiency and reduce the harm in organic solvents and chemicals to human body. This instrument is easy to operate and have good capacity in anti-interference and stability. Features ● 320*240 LCD touch screen, user-friendly interface. ● Neutralization titration principle, to complete liquid charge, titrate, stir, determine the titration end point automatically under normal temperature. LCD screen can show the test result and print. ● Color sensor can match up the test titration end point, the judgment of end condition is reliable. ● Waste liquor cup is no need. ● Peristaltic pump control the cha... -
China High Quality Discharge Cable Manufacturer – GDJF-2008 Partial Discharge Analyzer – HV Hipot
GDJF-2008 Partial Discharge Detector is measuring partial discharge for the products such as transformers, mutual inductors, HV switches, zinc monoxide arresters and power cables. It also can make type tests and monitor insulation operation. This type has the advantages of high sensitivity, wide range of capacitance, being well equipped for input unit impedance detecting and more variants of frequency bands (9 in all). After proper setting, the discharge impulse amount can be read directly. The indicating and digital meters are shown simultaneously. This detector is widely applied in power stations, manufacturers, and institutions. Use Condition ● Ambient temperature: 0-40℃±2℃. ● Relative humidity: ≤80% ● Power supply: 220V±10%, 50HZ. ● No violent vibration and mechanical shock. ● Th... -
OEM Best lightning arrester tester Supplier – GDUD-PTM Ultrasonic Flaw Detector for Electrical Power Tower – HV Hipot
Features ● TFT true color screen. ● Using leading embedded digital system technology, the electrical performance indicators of the instruments are designed and manufactured according to the standard EN 12668.1 – 2000. ● Advanced and safe lithium polymer battery and power management technology, automatic alarm and protection. The automatic standby screen saver can be set to make the equipment more energy-efficient and longer-lasting, and to ensure continuous and efficient flaw detection. ● Application software that integrates intelligent and powerful processing functions, direct-reading user interface and operation mode, or digital knob one-button operation mode. ● Large-capacity detection parameters preset channel, convenient for users to operate on different detection objects... -
OEM Best Primary Injection Test Set Suppliers – GDKC-12A (GDKC-12B) (GDKC-13A) Circuit Breaker Analyzer 2021 – HV Hipot
General Information High voltage circuit breaker is one of the most important control equipment in the power system. GDKC-12A/B (GDKC-13A) is used to test the dynamic characteristics of high voltage circuit breaker. It is easy to operate, with high accuracy. Features ● Time: the open/close time, in phase synchronization, phase-to-phase synchronization of 12contacts. ● Closing resistor: pre-switching time, pre-switching waveform and resistance of the closing resistor of 6 channels. ● Reclosure: close-open, open-close, open-close-open time for each contact. ● Bounce: close bounce time, times, process and waveform of each contacts. ● Velocity: velocity at contact open or close, maximum speed, time-travel characteristic curve; first open, first close and second open velocity of reclo...
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