Potential Transformer Tests

Potential Transformer Tests: The three Potential Transformer Tests are namely, Polarity check, Ratio check and Phasing check. Polarity check: Polarity check in Potential Transformer Tests is performed in the same…

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Current Transformer Tests

Current Transformer Tests: Current Transformer Tests are generally mounted in the switchgear when it is delivered to site and may not be easily accessible. The normal tests which are carried…

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Bipolar Junction Transistors Articles

Bipolar Junction Transistors Articles: Transistor Operation: pnp and npn Transistor Operation – A junction transistor is simply a sandwich of one type of semiconductor material (p-type or n-type) between two…

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Amplifier Testing

Amplifier Testing: Preparation - Transistor Amplifier Testing and other circuits should be tested in a methodical fashion; otherwise the results obtained may be useless. The circuit should first be carefully…

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Transistor Testing Circuit

Transistor Testing Circuit: In-Circuit Testing - A quick test to check if a transistor is operational can be performed while the device is still connected in a circuit. Consider Fig.…

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Common Base Transistor Characteristics

Common Base Transistor Characteristics: To investigate the Common Base Transistor Characteristics of a diode (a two-terminal device), several levels of forward or reverse bias voltage are applied and the resulting…

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Testing of Semiconductor Diode

Testing of Semiconductor Diode: There are Several methods are available for Testing of Semiconductor Diode, namely, Ohmmeter Tests: One of the simplest and quickest tests can be made using an ohmmeter…

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Antenna Characteristics

Antenna Characteristics: The following Antenna Characteristics isolated from surfaces which will alter or change their radiation patterns and efficiency. Current and Voltage Distribution: When an RF signal voltage is applied…

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