| 11. | RCDs operate by measuring the current balance between two conductors using a differential current transformer.
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| 12. | High-voltage current transformers are mounted on porcelain or polymer insulators to isolate them from ground.
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| 13. | Low-voltage single ratio metering current transformers are either a ring type or plastic molded case.
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| 14. | The company is known for their original portable appliance testers, clamp-on meters, current transformers, etc.
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| 15. | Split-core current transformers either have a two-part core or a core with a removable section.
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| 16. | Two identical current transformers are used for each winding of a transformer, stator, or other device.
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| 17. | Magnets can also saturate current transformers or power-supply transformers in electronic meters, though countermeasures are common.
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| 18. | It is simple to measure very high currents ( hundreds of amperes ) with the appropriate current transformer.
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| 19. | Accurate measurement of low currents ( a few milliamperes ) with a current transformer clamp is more difficult.
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| 20. | When a large fault current flows through the circuit breaker, this is detected through the use of current transformers.
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