Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
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2. DESCRIPTION
2.1. Construction and principle of operation
Outdoor disconnector type ONIII- ... is an insulating, two-column switch, with horizontal contacts movement.
It is designed to work in networks with voltage corresponding to the rated voltage, at frequencies up to 60 Hz
inclusive. The disconnector can be used as a single-pole switch with an individual operating mechanism or in
three-pole set with one common operating mechanism. Disconnector poles can be set in parallel or in serial
connection. Disconnector visual drawing in parallel configuration is shown below.
2.2. Climatic conditions
The disconnector is designed for outdoor operation, at ambient temperature from -50 to +40° C and relative
humidity up to 100%.
Current path
Base frame
Rotating base
Poles coupling mechanism
Left-sided earthing switch
Operating mechanism
Operating mechanism's supporting structure
Right-sided earthing switch
Earthing switches coupling mechanism
