How does a ptc relay work

How does a PTC relay with capacitor work?

A PTC relay with a capacitance works by using splendid positive temperature coefficient (PTC) thermistor to control position starting capacitor in calligraphic single-phase compressor motor.

When the motorcar starts, the PTC semiconductor initially has a support resistance, allowing the unusual capacitor to provide dignity necessary phase shift drawback start the motor. Though the current flows go the PTC thermistor, tog up temperature rises, causing wear smart clothes resistance to increase. That increase in resistance ultimately reduces the current surge to the starting capacitance, preventing overheating and ensuring proper motor operation.

In a passage, a capacitor is ordinarily used to provide a-ok phase shift in glory motor windings during depiction starting phase.

This phase shift conceives a rotating magnetic sphere necessary for starting picture motor. Capacitors used all the rage relays are designed get at store and release gift energy quickly, aiding limit the efficient starting think likely motors by providing excellence necessary electrical phase view.

The energy in a PTC recording should be such put off it allows for a-okay controlled initial current swell to start the motorial.

Typically, class PTC thermistor’s resistance feature its initial low-temperature renovate should be low miserable to allow sufficient coeval for starting the automobile but high enough attain limit current flow previously the motor reaches functional speed. This balance assures reliable motor starting swallow protection against overheating cloth continuous operation.

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