Products/Services for Energized Winding Resistance Testers

  • Ground Resistance Testers-Image
    Ground Resistance Testers - (140 companies)
    Ground resistance testers are devices that are used to measure and test electrical grounding systems. Grounding enables optimum electrical continuity between conducting objects and the Earth. Effectively grounded equipment is permanently...
  • Hipot Testers-Image
    Hipot Testers - (141 companies)
    ...specifications to consider when searching for hipot testers include AC and DC output voltage, AC and DC output current, resistance range, insulation limit, and test time. Output voltage can either be AC or DC. The type of test will determine what...
  • Analog Resistance Meters-Image
    Analog Resistance Meters - (79 companies)
    Analog resistance meters are instruments that measure electrical resistance. They display values on a dial, usually with a needle or moving pointer. Resistance, which is measured in ohms (W), is the opposition to the flow of electric current...
  • Hardness Testers-Image
    Hardness Testers - (265 companies)
    Hardness testers measure a material's resistance to indentation. This calculation is determined by measuring the permanent depth or projected area of the indentation. Hardness testers measure a material's resistance to indentation. Hardness...
  • Wire Harness Testers-Image
    Wire Harness Testers - (36 companies)
    Wire harness testers evaluate continuity, resistance, isolation, and other performance factors for multi-strand wire harnesses. Wire harness testers evaluate continuity, resistance, isolation, and other performance factors for multi-strand wire...
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    Electrical Resistance and Conductance Sensors - (13 companies)
    Electrical resistance and electrical conductance sensors measure the resistance or conductance of an electrical component or system. Electrical resistance and conductance sensors are used in a wide variety of industries, across a very broad spectrum...
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    Digital Resistance Meters - (196 companies)
    Digital resistance meters are instruments that measure electrical resistance. They use solid-state components and display values digitally. Resistance, which is measured in ohms, is the opposition to the flow of electric current of a conductor...
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    Spring Winding Services - (262 companies)
    The GlobalSpec SpecSearch database contains information about spring winding services that specialize in these types of springs: Compression springs are open coil springs that offer resistance to compressive force. Their uses vary greatly from engine...
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    Voltage Testers - (137 companies)
    ...one direction. Voltage testers which take peak spike measurements and maximum/minimum (max/min) readings capture voltage spikes as well as maximum and minimum voltage values. RTD testers are used to monitor resistance temperature detectors (RTD...
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    Receptacle Testers - (27 companies)
    ...in areas which contain water lines. GFCI de-energizes the circuit if an unsafe flow of current to ground is detected. Receptacle testers are designed for use with specific receptacle types. There several basic types of electrical outlets, including 20-amp...

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  • Plant commissioning
    Before energizing a transformer for the first time on site, the insulation resistance of the ex- tra high-pressure and medium-pressure circuit- breakers, cables and windings should be tested with a 1,000-volt insulation resistance tester , even though this test…
  • Calculation of the activation energy of oil-paper insulation in a distribution transformer
    The three MV windings were short-circuited and energized through their bushings at 5 kV. .... An HV insulation tester was used to measure the insulation resistance between the MV wind- ing and the tank, RMT , and between the MV and LV windings, .
  • CR4 - Thread: Insulation Test Problem
    Induced voltages on de-energized ungrounded equipment is normal in the presence of other energized equipment. .... You are trying to test a generator, a surge tester can do a DC winding insulation to ground resistance (hipot or megger) and a ringing comparision of the windings which would tell if there are shorted turns in the coils.
  • Federal Register > Thursday, April 27, 2006 > [71 FR 24972] Energy Conservation Program: Test Procedures for Distribution Transformers
    Therefore, the equation for adjusting the measured resistance need not, and should not, include a temperature level .... Proposed paragraph (b) of that section directed the tester to "&e;nergize not less than 25 percent" of either the high voltage or low voltage winding . .... of IEEE C57.12.90-2001 and C57.12.91-2001, which recommend energizing 100 percent of…
  • CR4 - Thread: Insulation Resistance Of Power Transformer
    the test instrument used was insulation resistance tester , Megger, 5kV. .... when the transformer was to be energized after a long time of deenergization and then reconditioned, the … at all. what we are planning now is that we will bake the winding of the power…
  • CR4 - Thread: Electrical Equipments
    This test energizes any chosen winding at a specified. .... results are then presented as a ratio (e.g. 2:1, 5:1, etc.) Voltech AT testers . .... resistance .
  • Plant Maintenance Product | Ideal Industries' 61-797 Digital Insulation Meter tests insulation for signs of deterioration | Plant Services
    …for signs of deterioration that can lead to breakdowns in electrical systems, generators, switchgear and motor windings . .... voltages (50 V, 100 V, 250 V, 500 V and 1000 V) and resistance up to 20G .... The tester also measures earth-bond resistance to assure verification of the continuity of the protective bonding … is also displayed on the front panel to warn the technician before use on an energized circuit.
  • Plant Maintenance Product | Ideal Industries' 61-797 Digital Insulation Meter tests insulation for signs of deterioration | Plant Services
    …for signs of deterioration that can lead to breakdowns in electrical systems, generators, switchgear and motor windings . .... voltages (50 V, 100 V, 250 V, 500 V and 1000 V) and resistance up to 20G .... The tester also measures earth-bond resistance to assure verification of the continuity of the protective bonding … is also displayed on the front panel to warn the technician before use on an energized circuit.
  • Electrical Safety of Low-Voltage Systems > Testing the Electrical Safety
    Test circuit to measure the fault-loop impedance in energized TN systems. .... the series of the following impedances: phase conductor, protective conductor (PE), and secondary winding of the transformer. .... In Fig. 14.10, a diagrammatic representation of a typical loop- tester and the test circuit is … it, the voltage drops V caused by the test current I across the resistance R of known…