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 Instrument Transformers 20 Flashcards |
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Which type of instrument transformer is used to step down current for measurement purposes? |
Card: 1 / 20 |
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Current Transformer (C.T.) |
Card: 2 / 20 |
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Fill in the blank: Instrument transformers provide electrical ______ between high voltage power circuits and measuring instruments. |
Card: 3 / 20 |
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Isolation |
Card: 4 / 20 |
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True or False: Potential transformers operate in a short-circuited condition. |
Card: 5 / 20 |
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False. Potential transformers operate almost in an open-circuited condition. |
Card: 6 / 20 |
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What is the standard measurement rating for the small instruments used with instrument transformers? |
Card: 7 / 20 |
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5 A and 110 – 120 V |
Card: 8 / 20 |
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Riddle: I step down the power system voltage, allowing the safe measurement of electrical quantities. What am I? |
Card: 9 / 20 |
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Potential Transformer (P.T.) |
Card: 10 / 20 |
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Which instrument transformer has a primary connected in series with the power circuit? |
Card: 11 / 20 |
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Current Transformer (C.T.) |
Card: 12 / 20 |
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Fill in the blank: The damaged measuring instruments can be replaced easily with ______ measuring instruments due to standardization. |
Card: 13 / 20 |
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Healthy standardized |
Card: 14 / 20 |
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True or False: Current transformers are also referred to as parallel transformers. |
Card: 15 / 20 |
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False. Current transformers are called series transformers. |
Card: 16 / 20 |
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What is the primary function of instrument transformers in an AC system? |
Card: 17 / 20 |
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To step down the AC system voltage and current for measurement. |
Card: 18 / 20 |
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Riddle: I have many turns on my primary and am used to measure voltage safely. Who am I? |
Card: 19 / 20 |
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Potential Transformer (P.T.) |
Card: 20 / 20 |
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