NON-SWITCHING TEST DEVICE ON CENTRIFUGE OF ELECTROMAGNETIC RELAYS WITH SELF-RESET Russian patent published in 2013 - IPC G01M7/00 

FIELD: test equipment.

SUBSTANCE: device includes two DC sources, four groups of spaced electrical jumpers and four groups of toggle switches, a signal switching device with a signal unit, a terminal plate in the operator's room, a terminal plate of the centrifuge, a device for attachment of the relay to a unit of plug connectors with the number of mounting seats for the relay and plug connectors, which is equal to the number of tested relays' with that, one group of jumpers is in the signal switching device, one group is in the signal unit and two other are in the plug connectors unit; two groups of toggle switches are arranged immediately in the signal switching device, and two groups are arranged in the signal device. Besides, the number of signal lamps in the signal unit is equal to the number of the tested relays.

EFFECT: number of simultaneously tested relays is increased; switching of wires of the diagram is excluded during the test; the test technology is simplified; measurement and control of parameters are combined simultaneously at all relays; the number and period of time of tests, and resource, power and labour costs are reduced; possibility of measurement and control of parameters simultaneously at all relays and possibility of almost instantaneous change-over from measurement and control of one parameters simultaneously at all the relays to the control of other parameters simultaneously at all the relays is provided, as well as the possibility of testing all the relays or any of their combinations selected is provided.

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