When conducting the experiment, connect the ball gap device in parallel with the test sample. The ball gap device itself has a protective resistor of 1 ohm per volt in series. First, adjust the ball gap to 60% of the test voltage (the discharge distance of the ball gap can be checked from the ball gap discharge voltmeter below, Tables 1 and 2). At this time, the test sample should be connected simultaneously. Measure the readings of the test transformer and low-voltage side voltmeter when the ball gap is discharged (take the average of 3-4 times), and then measure the readings of the voltmeter at 70% and 80% of the test voltage in the same way. Use this three-point line value as a curve (mostly a straight line), and then extend this curve (mostly calculated proportionally) to a position 10-15% higher than the required test voltage, as a discharge protection against overvoltage that may occur during the withstand voltage test process.
Typical application environment of discharge ball gap pressure gauge (horizontal type)
The discharge ball gap pressure gauge (horizontal type) is mainly used in various professional scenarios that require high-voltage testing, overvoltage protection, and voltage calibration
Product Overview The pocket-sized lightning strike counter tester is a product meticulously designed and developed by our company's relevant technicians in
It is suitable for testing under various conditions such as substation, repair workshop, manufacturer and laboratory
The MOA-Ⅱ Arrester resistor DC parameter tester is used to measure the pressure sensitive voltage (U1mA) and leakage current (Id) at 0.75U1mA of zinc oxide varistors.
KDYZ-301 Zinc oxide lightning arrester live tester (lightning arrester online detector) for zinc oxide [MOA] leakage current measurement and analysis.
The lightning arrester online monitoring device (also known as the lightning arrester leakage current and action recorder) is an instrument used in conjunction with zinc oxide lightning arresters in high-voltage AC power systems.
Suitable for testing in power plants, substations, repair workshops, laboratories, and other conditions.
A specialized instrument for testing low current residual voltage/leakage current of lightning arresters and zinc oxide resistors with rated voltage of 10kV and below.
The instrument is used for testing the performance parameters of overvoltage protection components such as lightning arresters, surge protectors, varistors, metal ceramic discharge tubes, vacuum lightning arresters, etc.
KDYZ-201 Zinc Oxide Surge Arrester Tester is a specialized instrument used to test the electrical performance of zinc oxide surge arresters.
Suitable for measuring DC parameters of overvoltage protection components such as zinc oxide surge arresters (varistors), metal ceramic two - and three electrode discharge tubes, vacuum surge tubes, etc
The KDFC-2G varistor tester is suitable for measuring the DC parameters of overvoltage protection components such as zinc oxide lightning arresters, metal ceramic two - and three electrode discharge tubes, vacuum lightning tubes, etc.
The application fields of KDZD3099 insulator fault long-distance laser positioning detector include power, communication, railway, mining, water conservancy, coal and related scientific research units, 380V~1000KV line insulator fault inspection.
Mainly used for accelerated aging testing of zinc oxide valve plates (varistors), it consists of a control cabinet and a constant temperature box.
