can we use metering current transformer as protection
current transformer if not why? & if yes why?
Answer Posted / mohsen khoshsefat
Introduction to Protection Transformers
Protective Current Transformers are designed to measure the
actual currents in power systems and to produce
proportional currents in their secondary windings which are
isolated from the main power circuit. These replica
currents are used as inputs to protective relays which will
automatically isolate part of a power circuit In the event
of an abnormal or fault condition therein, yet permit other
parts of the plant to continue in operation.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is the comparison of PILC and XLPE cable
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
What is different bewteen low or high impedance busbar protection scheme
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
what is the use of the circle diagram
What is capacitance?
Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage
Draw a block diagramof Three UPS systems connected in Parallel mode?
When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?
how to read idmt curva
What is meant by full pitched winding?
why transmission is only 3 phase and not 2 or 4 or poly phases
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?