PT - Potential transformer
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Voltage transformers are used in power systems to transform the voltage of a circuit to a low voltage proportional to the voltage of the circuit, in order to operate voltmeters and relays, since it is dangerous to directly measure and control voltage and power in such systems. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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計器用変圧器。電力系統においては，電圧，電力の測定，制御を直接行うのは取扱い上危険であるから，回路の電圧に比例した低電圧に変圧して，電圧計や継電器を働かせるために用いる変圧器である。
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>>: Ptecticus tenebrifer (English spelling)
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