LOAD SURVEYING METER

摘要

PROBLEM TO BE SOLVED: To provide a load surveying meter which accomplishes connection with a wattmeter efficiently and easily, without having to disrupt the supply of power to a load side. SOLUTION: The load surveying meter 1 comprises a freely openable cover part 3 and a base part 5. The cover part 3 and the base part 5 are provided with a secondary winding 21, which is turned into a closed ring pinching a load side power line 33 of a wattmeter 31 as a primary winding of a current transformer which is separated therefrom. The cover part 3 has a terminal base 23 connected being closed to a power source side terminal 35 of the wattmeter.