0
Pole discrepancy relay trips all the 3 poles instantly. when all the 3 poles of CB do not close or open simultaneously I.e. with a time delay of less than 300 ms.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
It will not. This relay is a Normally Open relay construction. The contacts are closed only when power is applied to the relay coil. You must use either an SPST-NC (Single Pole Single Throw – Nor?
It will not. This relay is a Normally Open relay construction. The contacts are closed only when power is applied to the relay coil. You must use either an SPST-NC (Single Pole Single Throw – Normally Closed) construction or an SPDT (Single Pole Double Throw) type of construction so a contact closure is presented when there is no power applied to the relay coil.
What the three types of over current protection relay and describe the principles of operation?
over current protection relay
What are the applications of a shaded pole motor?
When the coil in the relay needs to run off an AC signal rather than DC. The shaded pole keeps the relay from "chattering" every time the AC current crosses 0v on the sine wave.
What is ment by restraining coil?
straining coils are winding that we uses to prevent the fault operation of relay
Describe a double pole single throw relay with a 24 V coil And how does it work?
Double pole single throw relay de-energized, with two separate sets of contacts open. Apply 24 volts to coil terminals, coil steel core magnetizes and pulls hinged armature towards it. The two contacts attached to hinged armature make contact with the two stationary contacts. The double pole relay has now two separate sets of closed contacts.
What is Pole discrepancy protection?
avoid that only one or two poles are open during steady state condition
What is the part of the contactor that gets magnetized by the relay coil is called what?
Shading pole. It helps to stop the relay from chattering.
It will not. This relay is a Normally Open relay construction. The contacts are closed only when power is applied to the relay coil. You must use either an SPST-NC (Single Pole Single Throw – Nor?
It will not. This relay is a Normally Open relay construction. The contacts are closed only when power is applied to the relay coil. You must use either an SPST-NC (Single Pole Single Throw – Normally Closed) construction or an SPDT (Single Pole Double Throw) type of construction so a contact closure is presented when there is no power applied to the relay coil.
How would you use discrepancy in a sentence?
The couple had a discrepancy with their repair bill.
What the three types of over current protection relay and describe the principles of operation?
over current protection relay
Can you put the word discrepancy in a sentence?
The discrepancy between you and me is our sex. In other words discrepancy means difference.
What is an Induction Relay with shaded pole?
It is a device used to protect Electric Network and loads
What would a 1 Form C relay and a 1 Form A and 1 Form B relay be?
Hi All answered in http://zone.ni.com/devzone/cda/tut/p/id/4782 = Relay Forms = 121 ratings | 4.61 out of 5 | Print DocumentRelays are classified by their number of poles and number of throws. The pole of a relay is the terminal common to every path. Each position that the pole can connect to is called a throw. A relay can be made of n poles and m throws. For example, a single-pole single-throw relay (SPST) has one pole and one throw, as illustrated in the following figure. A single-pole double-throw (SPDT) relay has one pole and two throws, as illustrated in the following figure: A double-pole double-throw (DPDT) relay has two poles, each with two simultaneously controlled throws, as illustrated in the following figure: Relays are then classified into forms. Relay forms are categorized by the number of poles and throws as well as the default position of the relay. Three common relay forms are: A, B, and C. Form A Form A relays are SPST with a default state of normally open. Form B Form B relays are SPST with a default state of normally closed. Form C Form C relays are SPDT and break the connection with one throw before making contact with the other (break-before-make).
Is discrepancy a plural?
No, discrepancy is singular. The plural form is discrepancies.
When a discrepancy is entered in error who can change or erase the discrepancy?
nobody
What is the purpose of a relay call?
A relay call is technology that is used for people who are deaf, hard of hearing, speech impaired, or deafblind. Calls go to a center who then relay them thru keyboard operation.
What does a double pole refer to?
.............................../ Pole 1 ---------------O O---------------------- | | ................................/ Pole 2 ----------------O O--------------------- | Two single throw switches mechanically joined together so that their individual poles are switched simultaneously. One throw actuates both poles. Example: that doubled air conditioner circuitbreaker. Add another position for each flapper "/ " and you have a double pole double throw. Periods .... were used to place flappers, which should connect to the O's below them. Graphical interface would be helpful. Throw = switching actions available to different circuit paths Pole = a power line connection to switch to the different paths.
