What is free potential, Physics

Assignment Help:

Potential free contacts (also known as "dry contacts") are simply contacts which are physically operated with the main device, but not electrically connected to it. For example a motor contactor often has auxiliary contacts that are operated by the main coil and open and close at the similar time as the main contacts but are not used for control of the motor starter. If they are connected to an outside circuit to shows the status of the starter without being powered by the motor supply they would be considered potential free contacts.
These type also called Signal-Contacts.

In case of relays and switches if the common/pole is connected internally to a given potential like a 110V phase etc., the contact is not POTENTIAL FREE but if both the common and the normal open (and at time also the normally closed) contacts are presented to the user for connecting in his system as he pleases,the contact is said to be "potential-free"


Related Discussions:- What is free potential

Physical arrangement of resistors, Physical arrangement of resistors: B...

Physical arrangement of resistors: Before we look at some problems it is necessary to warn you that physical appearances can be deceptive. When components are mounted they are

Spectrum, Show that the spectrum of thermal radiation for T ¼ 300K peaks at...

Show that the spectrum of thermal radiation for T ¼ 300K peaks at approximately 10 microns Minimum 100 words accepted

Flux of electric field strength vector across the circle , Two point charge...

Two point charges q and -q are splitted by distance 2l. Find the flux of electric field strength vector across the circle of radius R placed with its centre coinciding with the cet

Calculate the velocity of rock thrown upward, A rock is thrown upward with ...

A rock is thrown upward with a speed of 26 m/s. How long after it is thrown will the rock have a velocity of 48 m/s toward the ground?

Evaluate intensity ratio, Two waves of equal frequency have amplitudes...

Two waves of equal frequency have amplitudes 2 units and 3 units respectively. When they superpose coherently the intensity of the resultant wave is I 1 . The intens

How fast is each particle moving, Two particles each have a mass of 6.7 x10...

Two particles each have a mass of 6.7 x10 -5 kg. One has a charge of +5.0 x 10 -6 C, and the other has a charge of -5.0 x 10 -6 C. They are initially held at rest at a distance of

Voltage dependent resistor, A VDR is a special type of resistor that chang...

A VDR is a special type of resistor that changes its resistance with rise in voltage. It has a very high resistance at low voltage (below the trigger voltage) and very low resista

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd