Showing results: 46 - 60 of 304 items found.
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National Technical Systems
Dielectric Constant is used to determine the ability of an insulator to store electrical energy. The dielectric constant is the ratio of the capacitance induced by two metallic plates with an insulator between them to the capacitance of the same plates with air or a vacuum between them. Dissipation factor is defined as the reciprocal of the ratio between the insulating materials capacitive reactance to its resistance at a specified frequency. It measures the inefficiency of an insulating material. If a material were to be used for strictly insulating purposes, it would be better to have a lower dielectric constant.
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HDIIJ-80 -
HD Power Test Equipment Co.ltd
Automatic Insulation Oil Dielectric(breakdown) Tester is used to carry on power frequency dielectric break down test on the transformer oil, capacitor oil, electric device, insulation tool, electric manufacturer and etc. It adopts full auto digital microcomputer, which has the function of high accuracy, strong anti-interference ability and safe reliability
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DV-25V-5 -
Criterion Instruments Limited
D C DIELECTRIC STRENGTH TESTERS ( HIPOTS ). One voltmeter 0-2500V dc accuracy: 2% of full scale. 4 Lights (power-on, high-voltage-on, fault and line-fault)
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OLT Series -
Kharkovenergopribor Ltd.
Portable automatic testers of OLT series are designed for dielectric strength testing of insulating oils (mineral and synthetic) with AC voltage up to 100 kVRMS at industrial frequency (f = 50 / 60 Hz).
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HVTS-70/50 -
Kharkovenergopribor Ltd.
Portable system HVTS-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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HVT-70/50 -
Kharkovenergopribor Ltd.
Portable system HVT-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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Sivananda Electronics
No Balancing and Calculation required to calculate Volume / Surface Resistivityand Dielectric Constant.Complies IEC 60250, IS 4487, Test jig Conform to ASTMD 257Built in Thermal PrinterSerial port RS232 for data downloading.Can be used to check liquid sample with Three Terminal oil cell.Storage 100 Test reports
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MG-II -
Chongqing Kailian Yongrun Industrial Co.,Ltd.
The dielectric breakdown voltage test (BDV test) is an important test to determine the breakdown voltage of insulating oils. After a certain period, transformer oil will be degraded, and there are moisture, gas and impurity in oil. Then, the quality of transformer oil is affected. So it is necessary to test the transformer oil. BDV test is one of the most common tests to insulating oils.
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AS-023A -
Chongqing Assen Power Equipment Co., Ltd
AS-023A Series High Quality Intelligent Transformer Oil Dielectric Strength Tester is specially designed for testing dielectric strength (Breakdown Voltage) of transformer oil. The breakdown voltage (dielectric strength) is one of the most important parameters of transformer oil, it is a rule of the voltage withstand. The value of breakdown voltage (dielectric strength) indicates whether the oil contains water, impurity and electric particles, and you’ll know the oil value via the breakdown voltage (dielectric strength).
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Chongqing Assen Power Equipment Co., Ltd
ST BDV Dielectric Oil Tester is ideal for speedy and accurate testing of dielectric strength of transformer and circuit breaker oil under-test room condition in accordance with international standard.
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RTS03 -
KEYCOM Corp
RTS03 measures relative permittivity (dielectric constant), dielectric loss tangent in the frequency range between 5GHz and 26.5GHz based on a correlation between measurement frequency and transmission attenuation as the microwave passes through the flat plane sample.
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STY Series -
Chongqing Assen Power Equipment Co., Ltd
STY series three cups insulation oil dielectric strength tester uses a microprocessor to automatically complete boost, keep stirring, static discharge, calculate, print and other operations, is a necessary measure in the conventional test equipment.
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Eltel Industries
*AC and DC test Voltages switched internally.*Direct digital display of test voltages.*Auto ranging and direct read out of volume resistivity.*Cell constant adjustment and Tan Delta zero correction.*Built-in protection for test sample flash over.