Examples of using Withstand test in English and their translations into Russian
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AC voltage withstand test select the protection….
Why does XLPE cable do AC voltage withstand test.
AC voltage withstand test select the protecti….
Why does XLPE cable do AC voltage withstand test[Aug 29, 2017].
AC voltage withstand test select the protection resistor considerations.
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Transformers, motors andother equipment frequency AC voltage withstand test.
Pin-pointingand withstand testing switched by one button, non blind area.
The typical application of the HIPOT tester is as follow: 1 Power Transformer AC high voltage withstand test 2 Circuit….
AC voltage withstand test equipment(ultra-low frequency or variable frequency resonance).
The induced voltage can be used for voltage withstand tests and partial discharge measurements.
The AC voltage withstand test of each voltage level can be carried out on the power transformer.
Meet with voltage and current measurement of 150Hz and 200Hz induction voltage withstand test.
(7) Before and after the voltage withstand test insulation resistance should be measured, check the insulation.
Purpose These tests are conducted to determine the ability of the vehicle hinge system to withstand test loads.
The DC voltage withstand test has the advantages of light weight and small capacity of the test equipment.
It can be widely used in cable,large-scale high-pressure rotary motor, power capacitors into AC voltage withstand test.
When commissioning GIS, it is also necessary to perform a voltage withstand test in line with the standards IEC 62271-203.
Ultra-Low Frequency Dielectric Strength Test is the alternative way for power frequency voltage withstand test.
If AC voltage withstand test is conducted before it is processed, it may cause dielectric breakdown and cause insulation repair difficulties.
These tests are conducted to determine the ability of the vehicle hinge system to withstand test loads in the longitudinal, transversal, and, for back doors only, vertical vehicle directions.
(4) When the DC voltage withstand test is performed, electrons are injected into the polymer medium to form space charge and the electric field intensity at the place is reduced.
During the test, the operator should operate at a safe distance(less than 20kV per meter in air), the power frequency withstand test bench must be reliably grounded, and the grounding resistance is less than 0.1Ω.
In many cases, the DC voltage withstand test cannot quickly detect the presence of a cross-linked cable as in the AC withstand voltage test. .
The electricity sector makes some test to solve the problems. according to theory and test result from domestic and overseas,0.1Hz ultra-low frequency voltage withstand test can solve this problems and the advantage is not only got same test results but also the instrument dimensions is small and considerably reduced the weight of it.
For the dielectric voltage withstand test for the insulating boots and the insulating gloves, the testing cycle is half year, no puncture is allowed during the teat, and meanwhile the leakage current of the insulating boots shall not be over the limit value.
B, the second category is destructive tests, such as AC voltage withstand test, DC voltage withstand test, with a higher test voltage to test the insulation level of equipment.
In the AC voltage withstand test, the high voltage output terminal of the test transformer should be connected in series with a protective resistor to reduce the overvoltage at the outlet of the high voltage winding of the transformer during the flashover or breakdown of the test product and to limit the short circuit current.
Portable HVDC generator is an important equipment for DC voltage withstand test and leakage current test of HV electrical equipments, cables, surge arresters in electric industry and power supply departments.
Among them, the AC voltage withstand test can be used for power frequency AC withstand voltage test device, also known as series resonance, variable frequency series resonance, series resonance device,series resonance withstand voltage test device, and AC withstand voltage device.
Warning: in the cable voltage withstand test, must be the core wire and the insulating layer of the physical separation, not with the other items covered in the above, otherwise it will cause the high voltage discharge, damage the instrument!!!
