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

Motion in one dimension, A woman walks 250m in the direction 35 degrees eas...

A woman walks 250m in the direction 35 degrees east of north, then 170m directly east. (a) using graphical method, find her final displacement from the starting point. (b) compare

Determine the thrust force, A windmill is operating in a 10 m/s wind that h...

A windmill is operating in a 10 m/s wind that has a density of 1.2 kg/m 3 . The diameter of the windmill is 4 m. The constant-pressure (atmospheric) stream tube has a diameter of 3

Determine the charge on each capacitor, For the arrangement shown in Figure...

For the arrangement shown in Figure find (a) the equivalent capacitance of the circuit, (b) the voltage across QR, and (c) the charge on each capacitor

Additive nature of charge, An object contains n1 protons and n2 electrons.w...

An object contains n1 protons and n2 electrons.what is net charge on the object?

Determine element that atomic weight is double atomic number, The atomic we...

The atomic weight of an element is double its atomic number. If there are four electrons in 2P  orbital, the element is : (1) C                       (2) N       (3) O

Define the newton law of cooling, Define the Newton's Law of Cooling Ne...

Define the Newton's Law of Cooling Newton's Law of Cooling: A cup of hot chocolate has cooled from 92°C to 50°C after 12 min in a room at 22°C.  a) What is the value for k (

Evaluate kinetic energy in oscillation, How many times the kinetic energy r...

How many times the kinetic energy reach at minimum and maximum point during one oscillation?

Op-amp as a subtractor, Op-amp as a Subtractor A fundamental differe...

Op-amp as a Subtractor A fundamental differential amplifier can be used as a subtractor as shown in figure (c) In this figure, all external resistors are equal in value, so

Volume of solid ring, Volume of Solid Ring A solid sphere is bored out ...

Volume of Solid Ring A solid sphere is bored out such that the radial axis of the removed cylinder passes through the centre. The ring of remaining material stands 6 centimetre

State biot-savart law, State Biot-Savart's law. Using this law, derive the...

State Biot-Savart's law. Using this law, derive the expression for the magnetic field because of a current carrying circular loop of radius 'R', at a point which is at a distance '

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