Find electrical test equipment terms...
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DC
Direct current, non-reversing polarity. The movement of charge in one direction, such as that from a battery. Describes both current and voltage.
Seen in: DC Programmable Power Supplies, DC Programmable Power Supply, Programmable DC Power Supplies, Programmable DC Power Supply
Related to “DC”:
DC Power Sources
Dielectric Absorption
The physical aspect where insulation appears to absorb and retain an electrical charge slowly over time. Apply a voltage to a capacitor for an extended period of time and then quickly discharge it to zero voltage. Leave the capacitor open circuited for a period of time then connect a voltmeter to it and measure the residual voltage. The residual voltage is caused by the dielectric absorption of the capacitor.
Dielectric Strength
The ratio between the voltage at which breakdown of the insulating material occurs and the distance between the two points subject to the applied voltage.
Related: Dielectric Tester, Dielectric Testing
Dielectric Withstand
A high voltage either AC or DC is applied to determine if a breakdown will occur in the insulation of the DUT. Also referred to as a HIPOT test or Dielectric Withstand test.
Dielectric Withstands Tests
Also known as dielectric strength tests, or hipot tests. A requirement of electrical safety testing standards. Dielectric withstand test measures current leakage of a DUT, while phase and neutral are short circuited together. Hipot testers or dielectric strength testers are used to measure this value.
Related to “Dielectric Withstand Tests”:
Dielectric Cells
Hipot Tester
Hipot Tester Applications
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ESR Meters
Tester that measures the equivalent series resistance
Related to “ESR Meters”:
LCR Meter Applications
LCR Meter
Earth Leakage Current
The leakage current from all earthed parts of the product. The current flowing from the mains supply through or across insulation into the Protective Earth Conductor.
Related to “Earth Leakage Current”:
Guardian Electrical Safety Analyzer
Electric Current
The flow of electrons (or electron "holes") through a conducting material, which may be a solid, liquid, or gas; the rate of flow of charge past a given point in an electric circuit. The magnitude of current flow through the conductor is proportional to the magnitude of voltage or electrical potential applied across the conductor and inversely proportional to the resistance (or impedance) of the conductor. Current is expressed in amperes or milliamperes (amperes/1000).
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