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1) voltage level up-down
2) voltage level down-up
3) isolation
AnswerBecause transmission would be impossible except at high voltages/low load currents due to enormous voltage drops that would otherwise occur, and these are achieved using Transformers..
Reed Keeling
Wiki User
∙ 11y agoCTs are used where the primary current and voltage are high and hence can not be directly taken into control circuit. By using a CT the corresponding current of primary current is made available on the secondary side, which are low and be taken in to control circuits conveniently.
Wiki User
∙ 11y agocurrent transformers are used for metering and for protection purpose
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Current Transformers Manufacturers?
Macroplast Transformers is a leading Current Transformers Manufacturers in India. Current transformers are devices that transform higher current value to lower current value. Current transformers provide galvanic isolation from the voltage on the primary winding while simultaneously creating a power signal that has been converted to a standard level, which in turn permits the use of standard measurement instruments and relays. For more info contact us.
Does the battery method have any limitations on testing the transformers polarity?
yes its does the higher the current will blow out the transformers
How many times is the word transformers used in the first movie?
The first movie was silent and had no subtitles either so the word "transformers" was never used in the first movie. No words were used.
Why magnetic current test in transformers?
To identify transformer winding shortage. If there is shortage between winding turns magnetic current test is the best to identify. Shaukt from Abudhabi.UAE
What model of phone was in the transformers movie?
To find out the type of phones in the move "Transformers" you would have to watch the movie carefully and identify the types of phones used.
What are the functions of current transformers and the difference between current transformers and voltage transformers?
To sense the current flow across the current transformers and to monitor the current ratings. In current transformers no voltage variations occurs. but in voltage transformers it is mainly used to increase or decrease the voltage value.
Who would need to utilise current transformers?
A current transformer is used for measurement of alternating electric currents. Current transformers, together with voltage transformers are known as instrument transformers.
Are Transformers used in circuits with Direct Current?
No. Transformers are used in circuits with Alternating Current. Transformers work on the principle of a "changing" magnetic field inducing a current in a conductor, and you don't get that "changing" field with Direct Current.
Can a current transformer be used for current amplify?
transformers cannot amplify!
What is an amp meter used for?
This is used for just measuring the current... for large currents in tramsmission lines(busbars) current transformers are used.
Direct electric current cannot be used to operate A. Electric motors B. Electric heaters C. Electromagnets D. Transformers?
Direct electric current cannot be used to operate D. Transformers.
Type of transformers used in gas insulated substation?
Current transformer and voltage transformer . This transformers are actually measuring instruments which measures the quantity of current and voltage coming out of the substation.
How current transfomer is step up voltage transformer n step down current transformer?
Current transformers are not voltage transformers. Current transformer are used for metering or protection purposes, with single turn primary. Generally the secondary current is either 1Amps or 5Amps.
Why ac current is used in a transformer?
AC current or DC current can be used in transformers. A transformer is made of two coils of wire, the input coil induces a current into the output coil. Transformers change the voltage either up (step up transformer) or down (step down transformer). The amount of change in voltage is dependent solely on the number of windings in both coils in the transformer. DC transformers work exactly the same way AC transformers do.
Can we drive relays by current transformers?
Yes, certain types of relays can be activated by current transformers.
Application of instrument transformer in power system?
Instrumental transformers are potential transformers and current transformers,they are used to measuring and protecting purposes at power systems
What is a transformer and its functions?
Voltage transformer or potential Transformers are used in conjunction with Current transformers for metering and protection purpose in HT and LT power system.
