| 摘要 |
A relay testing assembly is provided that tests normally open and normally closed electrical relays using a testing circuit, a housing with a pair of relay connectors, and a pair of light sources that indicate to the user the condition and operation of the relay. The relay testing circuit is designed to receive power from a power source, while a switch controls power to the relay connectors for activation of the relay coil. When a relay is tested, the lights are illuminated in one of two ways to indicate the relay is operating properly, or the relay has failed to open or close the circuit, depending on the relay type. A resettable circuit breaker prevents surges in the circuit, and a transformer is optionally provided to transform AC to DC power. Overall, the tool allows rapid testing of a relay prior to installation or during maintenance. |
| 主权项 |
1. A relay testing device, comprising:
a tester housing having sidewalls and an enclosed interior volume; a first light source disposed along a sidewall of the tester housing; a second light source disposed along a sidewall of the tester housing; a relay testing circuit comprising:
a power source connector adapted to connect to a power source and route electrical power to the relay testing circuit;a manually operated switch along a sidewall of the tester housing;a first relay testing socket along a sidewall of the tester housing;a second relay testing socket along a sidewall of the tester housing;the first relay testing socket and the second relay testing socket being electrically connected to the power source connector;whereby the switch is between the first relay testing socket and the second relay testing socket and the power source connector;the switch operably controlling a throw position of a relay positioned in one of the first relay testing socket or the second relay testing socket;the switch having a first position and a second position;the first light source and the second light source electrically connected to the first relay testing socket;the first light source and the second light source electrically connected to the second relay testing socket; whereby the first relay testing socket is adapted to test normally open relays, whereby when a normally open relay is connected to the first relay testing socket, the first light source is activated and the second light source is deactivated when the switch is the first position, and furthermore wherein the first light source is deactivated and the second light source is activated when the switch is in the second position; whereby the second relay testing socket is adapted to test normally closed relays, whereby when a normally closed relay is connected to the second relay testing socket, whereby the first light source is deactivated and the second light source is activated when the switch is the first position, and furthermore wherein the first light source is activated and the second light source is deactivated when the switch is in the second position; a resettable circuit breaker switch positioned between the power source connector and the relay testing circuit. |
