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High Voltage Insulation Digital Megohmmeter Structural Features and Working Principle
The high-voltage insulated digital Megohm case consists of a high-strength aluminum alloy. The machine is equipped with an isoelectric protection ring and a fourth-order active low-pass filter, which can effectively shield the external power frequency and strong electromagnetic fields. For capacitive test products, since the output short circuit current is greater than 1.6mA, it is easy to quickly increase the test voltage to the rated value of the output voltage. For low-resistance measurement due to the use of proportional design voltage drop does not affect the test accuracy High-voltage insulation digital megohmmeter using medium-large-scale integrated circuit, from the battery inside the battery as DC/AC converter DC voltage generated by the E to L The current of the pole is calculated by the 1/V conversion through the divider, and the measured insulation resistance is directly displayed by the LCD. The high voltage insulation digital Megohmmeter is used to verify that it is sound and can be improved before the system is powered on. System performance; Insulation testing can identify manufacturing process problems and equipment defects that are generally not detected until the equipment fails. In the European Union, this test is mandatory, even for the smallest civil systems.