Single -phase relay protection testing device

The utility model discloses a single -phase relay protection testing device, including protection casing, relay protection main circuit, hard clamp plate management circuit and hard clamp plate, its characterized in that: hard clamp plate is including the hard clamp plate of tripping operation and the hard clamp plate that closes a floodgate, hard clamp plate management circuit passes through M08 bus connection with hard clamp plate, the surface of protection casing is provided with an input that can show the hard clamp plate of tripping operation, withdraws from the LED lamp of position, the inside of protection casing is provided with the recording element that the historical data that moves back was thrown to the hard clamp plate of an acoustic element and one record, the input of hard clamp plate, withdraw from the position and read in in the relay protection main circuit through the M08 bus the utility model discloses simple structure, convenient operation, the simple installation, the stable performance is reliable, has avoided because of accidents such as equipment that the safety problem arouses, the person, the on -the -spot industrialization installation and debugging of being convenient for.