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whgdmk12345
1098 Messaggi |
 Postato il 07/25/2022 : 03:29:45
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https://www.mktester.com/lightning-arrester-tester/zinc-oxide-arrester-tester.htmlProduct description;
The metal oxide arrester tester is used for the measurement and analysis of metal oxide arrester [MOA] leakage. It is mainly used for measuring the resistive current to analyze the degree of zinc oxide aging and damp. The field charged test shall conform to Electric Power Industry Standard of the People's Republic of China DL474.5-92 Guide for Insulation Test on Site - Lightning Arrester Tests. The metal oxide arrester tester can be also used for factory and acceptance tests.
Zinc oxide arrester tester Technical Indexes:
Range of reference voltage input (peak): 10V-200V
Measurement range of full leakage current (peak): 100uA-10mA
Measurement range of resistive current (peak): 100uA-10mA
Measurement range of capacitive current (peak): 100uA-10mA
Measurement range of angle: 0·-90·
Power consumption: 4W
System measurement accuracy: ± (reading´5% + 5 words) (not more than 2mA for harmonic current)
AC power supply: AC 220V ±10%#65292;50Hz ±1%
Precautions:
1. When measure the reference voltage from PT or the measuring end of the testing transformer, carefully check wiring to avoid the PT secondary or test voltage short circuit.
2. Be careful not to wrongly connect the current and voltage sampling lines in the connecting process.
3. In the laboratory experiment, the high voltage power supply cannot use the series excitation testing transformer.
Structure Diagram for Instrument Panel:
Zinc oxide arrester tester
Debugging and troubleshooting of zinc oxide arrester tester:
#12288;#12288;1. Zero adjustment of the zinc oxide arrester test instrument head
After using the zinc oxide arrester tester for a period of time, it may need to be adjusted. The adjustment method is: start the instrument, the alarm light is on, (do not connect the test product at this time), press and hold the detection button, adjust the corresponding potentiometer on the panel, until the meter head indicates "zero ± 1 word". The voltage and current zero adjustments are performed separately.
#12288;#12288; 2. Error adjustment of zinc oxide arrester tester
After using the zinc oxide arrester tester for a period of time, if there is an error, it can be adjusted. After connecting the test product, if the U1mA value is determined, assuming it is 27.0kV, press and hold the detection button and see if the indication value of the voltmeter is It is equal to the reference voltage U1mA (27.0kV) of the tester. If not, adjust the quasi-potentiometer on the left side of the voltmeter head. After the adjustment is completed, release the detection button. |
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Zinc Oxide Arrester Tester
