Showing results: 181 - 195 of 632 items found.
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WA1401 -
Wuhan Sangao Electrical Test Installations Limit Co.
Isolation switch is the high voltage switch equipment, it was large and frequently use in power system . The outdoor isolating switch is the only completely exposed in the atmospheric environment electrical equipment, It is also a electrical equipment affected by climatic conditions influence the most direct and most serious. The operating conditions is relatively poor, It is easy to generate fault of mechanical or electrical. Especially the finger contact part is easy to be affected by rain, dust and harmful gas invasion, resulting in poor contact caused fever, provide the spring with contact pressure due to heating and annealing for reducing the pressure, so that more cause finger heat form vicious spiral eventually burn out finger accident. In maintenance often only pay attention to replace the obvious failure and fracture of spring, but spring to reduce the pressure can not judge and replacement, so again in the operation, each finger current distribution by the pressure difference, The greater the difference between the current distribution is not uniform, long-term operation will occur is bad and the overheating. Fever finger will be vicious spiral, a finger contact bad will spread over the entire bad contact. At the same time, there are a lot of isolating switch contact pressure can be adjusted, if in maintenance adjustment pressure is not enough or each finger to adjust the pressure difference will also appear afore-mentioned phenomena.
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R.R.Transformers & Equipments
RR – AC DC HIPOT TESTERS can perform such precise dielectric test in a cost effective manner without any compromise on safety. Our hipot testers are custom made to suit needs of various industries and product ranges. A Singe tester can be used for conducting both AC and DC Insulation Testing.
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1996A -
Peaceful Thriving Enterprise Co Ltd
This is convenient for low voltage, home electricity, cars and high voltage. There is 5-stage-LED-display indicators for voltage reading 12-400VAC or 12-500VDC.
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SCR ELEKTRONIKS
Every electrical apparatus or machine consists of two distinct sections - one which carries the electricity, and other which is isolated (insulated) from the electric currents. The former may be called the `Live' side whiles the latter `Earth’ side. A person near about the apparatus or handling it can safely touch the Earth side, but not the live side, for obvious reasons. To ensure that the isolation of the two sections is effected properly, the apparatus is tested by subjecting it to a Voltage much higher than the normal working Voltage. If the insulation is good, it stands the test without breakdown otherwise high electrical stress punctures the insulation at its weakest spot foretelling a later calamity to unwary user. Government Department- when buying electrical equipments- and all reputable manufacturers test every piece of equipment by this test called HIGH VOLTAGE TEST. It weeds out poorly insulate apparatus.
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TOB-SM8124 -
Xiamen Tob New Energy Technology Co., Ltd
200V 20 Ohm Portable Battery Tester For Battery Voltage and Resistance Testing. TOB-SM8124 Resistance Voltage Tester is a portable battery tester used for battery voltage and internal resistance test, it is Suitable for lithium-ion battery, nickel-metal hydride, lithium manganese, lead-acid battery and other single battery or battery pack with voltage no more than 200V.
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1864 -
Peaceful Thriving Enterprise Co Ltd
This voltage tester has multiple functions. It's perfect for solving numerous problems occurring in the household, workshop, auto and hobby areas.
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BT3564 -
HIOKI E.E. Corp
Hioki benchtop battery testers support simultaneous high-speed measurement of the internal resistance and battery voltage of EV and PHEV battery packs. The BT3564 Battery HiTester can measure pack voltage and total resistance, as well as bus bar resistance up to 1000V.
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Extech MG500 -
Extech Instruments Corporation
The MG500 is a digital high voltage insulation tester that tests voltage up to 10kV and measures insulation resistance to 500GOhm. The MG500 has a CAT III 300 Volt safety rating. This product is complete with a year warranty, built-in heavy duty carrying case with cover, test leads, alligator clips, and 8 x C batteries.
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380320 -
Extech Instruments Corporation
The 380320 is an Analog Insulation Tester with a large, easy to read analog display. Featuring a live circuit warning which displays the actual AC voltage measurement, Automatic discharge circuit, Lock Power On feature for extended test times, and Insulation resistance up to 400MΩ. Complete with heavy duty test leads, alligator clip test lead, 6 x AA batteries, hanging strap and hard carrying case.
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Extech 380363 -
Extech Instruments Corporation
This Extech insulation tester measures up to 10GΩ with 250V, 500V and 1000V Test Voltages. Features include: Lo-Ohms for testing connections, analog bargraph for viewing trends, AC/DC Voltage measurement to 999V, manual data record/recall function (9 sets), and live circuit display warning and beeper. Can be used to test motor, transformer windings, instruments, and appliances, check for moisture in wire and cable assemblies, safely evaluate a new wiring installation, and check for carbon tracking in breakers, relays, and switches. Extech Insulation Testers offer high sensitivity to assure reliable monitoring of low resistance motor windings. Complete with carrying case, test leads, and 6 x AA batteries.
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Extech 380396 -
Extech Instruments Corporation
With the 380396 measure Insulation Resistance to 60GΩ with test voltages of 500V, 1000V, 2500V, and 5000V. Featuring polarization Index measurement (PI), Dielectric Absorption Ratio measurement (DAR), AC/DC Voltage measurement to 600V with Min/Max, Peak and Relative functions, and 1 to 15 minute timer function for IR measurements. Comes with test leads, eight C batteries, 220V AC adaptor, heavy duty carrying case, and user manual.