1
Metal Oxide Arrester Tester
Operating Manual
I. Overview:
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.
II. Structure Diagram for Instrument Panel:
Figure 1
III. Main Technical Indexes:
Range of reference voltage input (peak):
10V-200V Customizable (0-250V)
Measurement range of full leakage current (peak):
100uA-8mA Customizable (0-20mA)
Measurement range of resistive current (peak):
100uA-8mA Customizable (0-20mA)
Measurement range of capacitive current (peak):
100uA-8mA Customizable (0-20mA)
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%
，
50Hz
1%
IV. Wiring Diagrams:
1. Laboratory wiring diagram
Precautions: the lower end of the arrester and the ground terminal are marked on the current
line. Please wire according to the marks.
