The fire pump control cabinet has two 3 - turn rotary switches. What is it for?

Answer:

The fire pump control cabinet mostly control 2 fire pumps, 1 prepared with 1 type, manually start and stop the pump in the fire pump control panel on the operation panel with a start stop button, red stop, green boot, a switch panel, at the position in general (that is, the handle for the vertical state) to manually start and stop the pump, as the field debugging, the switch handle position in 1# pump 2# pump automatic standby for the left 45 degrees, the fire control center to start the pump signal after 1# pump operation, 1# pump fault start up, after conversion circuit switching control cabinet, the pump will automatically 2# put into operation, the switch handle position in 2# pump 1# pump automatic standby for the right 45 degrees, with the function of 1# pump, the standby pump switching function only in the switch handle in the automatic position only. The control cabinet control interface has 3 main modules, fire fire, multi line bus module, fire hydrant button (spray pump for pressure switch or electric contact pressure gauge) interface, test method of pump switching function: main switch handle to automatic position (e.g. 1# 2# automatic backup), the fire control center (or analog a signal to start the pump), 1# pump control circuit disconnect, see 2# pump can not be put into operation.

Universal switch selection of fire pump working condition, the switch in manual state, can stop the button with the control cabinet, to start operation, select 1 main and 2 preparation, to the fire control room remote start the fire pump 1, pump 2 at standby, general fire pump control cabinet design is the main preparation the pump can be mutual investment. 2 main 1 is equipped with 1 Main 2, at this time, remote can start pump 2, No. 1 standby.

As for the constant pressure pump control box, the function and the fire pump control cabinet function are same, only the interface is not the module, but the electric contact pressure gauge.