GATE EE

Potentiometer and Instrument Transformers

Electrical and Electronics Measurement

(Past Years Questions)

Marks 1

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Instrument transformers are known to introduce magnitude and phase errors in measurements. These are primarily due to
GATE EE 2000
A potentiometer is basically
GATE EE 1997
A transfer instrument employed in the standardization of a polar type $$a.c$$ potentiometer is ______
GATE EE 1997
The primary current in a current transformer is dictated by
GATE EE 1997
In $$d.c.$$ potentiometer measurements, a second reading is often taken after reversing the polarities of the $$s.c.$$ s...
GATE EE 1992

Marks 2

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A $$200/1$$ current transformer $$(CT)$$ is wound with $$200$$ turns on the secondary on a toroidal core. When it carrie...
GATE EE 2006
A $$50$$ $$Hz,$$ bar primary $$CT$$ has a secondary with $$500$$ turns. The secondary supplies $$5A$$ current into a pur...
GATE EE 2004
The core flux in the $$CT$$ of above problem under the given operating condition is
GATE EE 2004
A $$500$$ $$A/5$$ $$A,$$ $$50$$ $$Hz$$ current transformer has a bar primary. The secondary burden is a pure resistance ...
GATE EE 2003
A d.c. potentiometer is designed to measure up to about $$2$$ $$V$$ with a slide wire of $$800$$ mm. A standard cell of ...
GATE EE 1994

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