Small GDCY-20P 20kV Impulse Voltage Tester HV Hipot Tester
I.Application
The equipment is according to impulse voltage testing requirement of the low-voltage power distribution system SPD II product and solar battery, enable to generate impulse voltage (1.2/50μs), is used for grade III test and limiting voltage test of SPD and components. It is also used for impulse current test and residual voltage test of the MOV valve plate, unit and surge protective device(SPD), or used in other scientific research experiments.
The device uses touch screen and PLC control technology, and the main performance meets the needs of domestic and foreign SPD products and their components for various combination wave testing.
II. Standards
GB 18802.1-2012 GB 18802.1-2012 Surge protective devices connected to low-voltage power distribution systems Part 1:Requirements and test method
GB/T 18802.12-2006 Surge protective devices connected to low-voltage power distribution systems Part 12: Guidelines for selection and use
GB/T 16927.1-1997 High voltage test techniques Part 1: General test requirements
GB/T 16927.2-1997 High voltage test techniques Part 2: Measuring systems
GB/T 17626.5-1999 Electromagnetic compatibility-Testing and measurement techniques-Surge immunity test
IEC61000-4-5 Electromagnetic compatibility (EMC) Part 4-5: Testing and measurement techniques - Surge immunity test
IEC61643.11: Low-voltage surge protective devices Part 11: Surge protective devices connected to low-voltage power systems-Requirements and test methods
IEC61643-21: Low voltage surge protective devices (SPD) Part 21: Surge protective devices connected to telecommunications and signalling networks-Performance requirements and testing methods
III. Applicable Conditions
Altitude: 1000M.
Ambient temperature: -5ºC~+40ºC, maximum daily temperature difference: 25ºC;
Relative humidity: 85% (20ºC) without condensation.
Service environment: Indoor.
No conductive dust, no fire and explosion hazards, no corrosive metal and insulating Gases.
The waveform of the power supply voltage is sine wave, the waveform distortion rate < 5%, and the voltage fluctuation <10%.
Grounding resistance: ≤1Ω
VI.Technical Specifications The main technical parameters of the test platform are:
Input power: AC220V/20kV, 50Hz.
Max. DC charging voltage: DC21kV, max. charging current 0.02A.
Charging time: 20kV completed within 20s~60s.
Charging voltage setting: Test initialization, pre-setting and adjusting of charging voltage.
Automatic polarity conversion: the number of positive and negative polarity impulse can be set separately.
Energy: 200J/1μF/25kV
Impulse voltage generating circuit
Lightning voltage 1.2/50μs, lightning voltage rated amplitude: 1-20kV. Waveform: T1 ±30%, T2 ±20%
Load ability: ≤ 0.01μF
The output has three sets of load capacity switching: 10nF, 5nF, 0.5nF (manual plug-in switching), and two sets of capacitance compensation switching plug-ins (manual plug-in switching).
The default output impedance is: 500Ω
Output accuracy: ±3%
Measurement accuracy: ±3%
Cabinet dimension: 600(L) * 800(W) * 1200(H)mm
Weight: about 120kg
The cabinet is equipped with movable casters and fixed supports, which can be easily moved and positioned;