Tester for lightning arresters counter

摘要

The designed circuit is used for testing all kinds of discharge counter for lightning arresters. Discharge counter for lightning arresters are used in substation and all power plants with various voltages and discharge currents. The lightning arresters counter tester creates the needed voltage and current that operates the counter and simulates the conditions that the counter works in; therefore it can be concluded whether the counter works well or not.

主权项

1. A tester for lightning arresters counter comprising a fuse connected to an input voltage, providing power supply to an electrical circuitry and an indicator lamp; wherein when said lamp is on, said tester is in working condition; energizing a first contactor and primary transformer; wherein said power supply comprises an increasing transformer; wherein said transformer comprises different voltages of 300V, 400V, 500V, 600V, 700V; wherein a voltage selector selects one of said different voltages; said different voltages pass through a first resistance; being rectified by a first and second diode in a half wave form; therefore charging four capacitors; wherein said four capacitors are all the same and wherein voltage charge value of said four capacitors are displayed by a DC voltmeter.