Controller of star-triangle fire pumps with one in use and the other standby

Abstract

The invention discloses a controller of star-triangle fire pumps with one in use and the other standby. The controller of the star-triangle fire pumps with one in use and the other standby comprises acontroller circuit, a first current detection signal conditioning circuit, a first current detection protective circuit, a second current detection signal conditioning circuit, a second current detection protective circuit, a voltage detection signal conditioning circuit, a voltage detection protective circuit, an external signal input isolating circuit, a keying circuit, a relay output circuit,a display circuit, an indicator lamp circuit, a buzzer circuit and a control panel; the first current detection signal conditioning circuit is connected with the first current detection protective circuit, and the second current detection signal conditioning circuit is connected with the second current detection protective circuit; and the first current detection protective circuit, the second current detection protective circuit, the voltage detection protective circuit, the external signal input isolating circuit, the keying circuit, the relay output circuit, the display circuit, the indicator lamp circuit, the buzzer circuit and the control panel are correspondingly connected with the controller circuit.

Description

technical field [0001] The invention relates to the field of fire-fighting water pump controllers, in particular to a controller for a one-use-one-backup star delta fire-fighting water pump. Background technique [0002] The operation mode of traditional fire pumps is generally a single manual control operation or a single automatic control operation. The operation mode selection is very single, and the function is also very single. The changing situation of the fire pump is operated in rotation, and it does not have the functions of fault indication and sound and light alarm, resulting in high power consumption in the working process of the fire pump, poor safety performance, and low intelligence and automation. Therefore, in view of the deficiencies of the above-mentioned technical problems in the current fire pumps, the applicant has developed a kind of two fire pumps as backup for each other, which has the mode selection function of manual control or automatic control, a...

AI Technical Summary

Problems solved by technology

[0002] The operation mode of traditional fire pumps is generally a single manual control operation or a single automatic control operation. The operation mode selection is very single, and the function is also very single. The changing situation of the fire pump is operated in rotation, and it does not have the functions of fault indication and sound and light alarm, resulting in high power consumption in the working process of the fire pump, poor safety performance, and low intelligence and automation.

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