What is difference between Ac Voltmeter And Dc Voltmeter ????
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Answer / n r@jesh
AC Volt meter measures A.C, Moving iron type meters are used
DC Volt meter measures D.C, Moving coil type meters are used
| Is This Answer Correct ? | 26 Yes | 2 No |
Answer / n r@jesh
AC VOLT METER USED FOR A.C VOLTAGE
DC VOLT METER USED FOR D.C VOLTAGE
AC VOLTMETER TYPE MOVING IRON
DC VOLTMETER TYPE MOVING COIL
| Is This Answer Correct ? | 15 Yes | 5 No |
which have higher efficiency transformer or induction moter
ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?
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