answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: Differential CT on live and neutral terminal?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Dear all what direct consequences can be from Current transformer on generator with respect to differential protection relay?

CT's are used as inputs to the differential. If the CT is bad, or it is not wired to the differential correctly, it will cause differential current to be seen by the relay, resulting in a trip.


How far is the Geyhound bus terminal in Bridgeport CT to Bridgeport Ct ferry?

The Ferry Terminal is about a 5 minute walk from the Bus Station


What is CT on the VFR terminal area chart?

Control tower


Will my CT license be suspended if my MA license gets suspended?

I now live in CT and do not have a CT license yet. I use to live in MA but haven't switched my license to CT yet. My MA license was recently suspended. Now that I live in CT can I get at CT license


Where in Ct does Rachel Robinson live?

Salem, CT.


Where did pt barnum live?

Either Bridgeport, Ct or Bethel, Ct


What does ct mean in an address?

Court, as in.. "I live on 533 Washway Ct." which equates to.. "I live on 533 Washway Court".


Why is polarity test done?

On the CT there will be a white dot that represents a polarity mark. This is used to connect to the correct polarity terminal on the device that the CT is connected to. Additional CT transformers must be connected to the recording or monitoring device using the same polarity as the first CT.


What is blue star next to CT on the VFR terminal area chart?

part time control tower.


What is the function of neutral CT?

A CT is a current transformer, used to measure current flow in a conductor. Neutral is power return, usually grounded at the distribution panel. A neutral CT, then, is a device that measures the current flow in the neutral conductor. In a three phase star system, each phase returns current to neutral, but the three phases cancel each other out, resulting in effectively zero current in neutral. The neutral CT is used to detect an imbalance in the system, perhaps caused by a ground fault or by some failure in one of the phase loads. In a single phase, single ended system, there is current on neutral, so the value of a neutral CT is not so great. If you also had a hot CT, you could compare and detect imbalance between hot and neutral, which would be an indication of a ground fault. (Actually, a ground fault current interrupting device, also called a GFCI, usually compares current in hot and neutral simultaneously, because both conductors are wound together as the sensing transformer primary - any perceived current is a ground fault.) In a single phase, double ended system, such as the 120/240 split phase system used in the US, a current CT could indicate ground fault or a system imbalance but, usually, imbalance might be a normal situation as various loads are turned on and off.


What is the function of neutralization?

A CT is a current transformer, used to measure current flow in a conductor. Neutral is power return, usually grounded at the distribution panel. A neutral CT, then, is a device that measures the current flow in the neutral conductor. In a three phase star system, each phase returns current to neutral, but the three phases cancel each other out, resulting in effectively zero current in neutral. The neutral CT is used to detect an imbalance in the system, perhaps caused by a ground fault or by some failure in one of the phase loads. In a single phase, single ended system, there is current on neutral, so the value of a neutral CT is not so great. If you also had a hot CT, you could compare and detect imbalance between hot and neutral, which would be an indication of a ground fault. (Actually, a ground fault current interrupting device, also called a GFCI, usually compares current in hot and neutral simultaneously, because both conductors are wound together as the sensing transformer primary - any perceived current is a ground fault.) In a single phase, double ended system, such as the 120/240 split phase system used in the US, a current CT could indicate ground fault or a system imbalance but, usually, imbalance might be a normal situation as various loads are turned on and off.


When shall you use class x CT?

in substation protection To be connected to unit protection relays (i.e. differential, REF, Dist., etc.)