Tag: Electrical
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DC to DC Power Converters: Function, Types, Operation & Applications
DC to DC power converters also referred to as choppers provide the means to change one DC voltage to another. Normally the conversion is to a lower voltage however, we also have step-up converters. DC to DC power converters are … Read more
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Instrument Installation – Cabling Guidelines
Instrument installation with the associated cable installation/electrical signal and control wiring should be carried out by skilled personnel who are acquainted with the safety requirements and regulations for the plant site for that specific project. Generally instrument cabling is usually … Read more
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Miniature Circuit Breakers (MCBs)
Miniature circuit breakers (MCBs) are electromechanical devices that protect an electrical circuit from over currents, in other words, MCBs are switches that automatically turns OFF when the current flowing them exceeds the maximum allowable limit. Over currents in an electrical … Read more
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How Synchros are used as Position Transducers
Let’s consider the transformer in Figure 1.0 whose secondary winding can be rotated with the respect to the primary winding. Figure 1.0 Synchro torque transmitter At an angle ϴ, the output voltage will be given by: Vo = KV… Read more
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How cycloconverter is used as a direct frequency converter
The cycloconverter provides direct ac to ac transformation with control over both the output voltage magnitude and output frequency. It employs phase-angle-controlled bridges to synthesize voltages. The most common form is the three-phase to three-phase converter illustrated below: … Read more
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Basic Features of a DC Potentiometer
A potentiometer is an instrument that is used for measurement of potential difference across a known resistance or between two terminals of a circuit or network of known characteristics. A potentiometer is also used for comparing the emf of two … Read more