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wire |
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winding type ct |
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winding |
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voltage transformer (vt) potention transformer (pt) |
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vibration detector, vibration sensor |
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under voltage relay |
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transformer differential relay |
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time over current relay |
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time delay relay |
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thermostat, thermal switch |
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thermometer |
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tachometer |
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tachogenerator |
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System demand control |
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synchronizising relay |
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synchro switch |
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synchro scope |
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synchro check relay |
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sudden pressure relay |
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spark plug |
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