Fire pump control cabinet with mechanical emergency start What are the advantages

1: Pure mechanical action, does not rely on any secondary circuit and power supply power switching to reduce the failure point as much as possible. Meet the requirements of GB-50974-2014 and GB-27898-2011 standards.

2: The unique segmented operating mechanism realizes the star-delta conversion to reduce the strong starting current, avoid the impact on the power grid and the fire generator, and cause the instantaneous voltage drop is too large or the fire motor cannot start the fire power supply of the major safety hazards.

3: Reduce the overall cost of the project; At present, the mechanical emergency start on the market is full pressure or through the secondary circuit conversion to start the pump, the former due to the large starting current of the power grid or fire motor capacity, busbar, equipment itself, etc. The latter is difficult to accept because it does not meet the GB-50974-2014 standard!

Hello, dear and happy, I am happy to serve you: the method of connecting the mechanical emergency start cabinet of the fire pump with the motor control cabinet: first of all, the power cord is drawn from the double power cabinet, and the output end is directly connected to the junction box of the water pump, but in view of the fact that in most cases, the control cabinet of the fire pump and the water pump have been connected, so at this time, the output end of the mechanical emergency start cabinet can play the role of directly connecting the pump as long as it is connected with the output end of the fire pump control cabinet.

1. If you want to connect the fire protection cabinet and the control cabinet, there are actually a lot of lines distributed, which are relatively complex, and we can use the method of two circuits to connect the two. 2. That is to say, it is necessary to take the way of dual power supply, there is one way to be mains, and one way can be supplied by generator to ensure stable operation, and the main AC contactor of the control cabinet and the fire strong opening cabinet is connected together with wires, and the ports can be well connected together according to the corresponding signs on the equipment, so as to connect the two. To sum up, if you want to connect the fire protection cabinet and the control cabinet together, the first leakage is erected, then we must pay attention to whether the line connection is correct.

Otherwise, once the line connection is wrong, it will cause a lot of problems, and even lead to fault problems such as damage to the strong opening cabinet of Sozhen Fire Force. Thank you for your trust, the above is my reply, I hope it can help you, I wish you a happy life.

Hello! Dear, I'm glad to be able to answer for you, there are several ways to start the fire pump in the control room as follows: 1. Multi-line disc control Multi-wire disc control fire pump is a common starting method, which can directly control the pump on the host, and start and stop the fire pump through multi-line control. 2. Brother shed fire hydrant pump button The fire hydrant pump button is generally installed on the fire hydrant box, and the fire pump is controlled by pressing the button.

3. Electric contact pressure gauge control electric contact pressure gauge control fire pump is a relatively simple way to start, there are red pointers, green pointers and black pointers on the electric contact pressure gauge, black pointers indicate pipe network pressure, red pointers indicate the highest pressure, green pointers indicate starting pressure, when the black pointer goes to the green pointer to start the fire pump, when the black pointer goes to the red pointer to stop the fire pump, so that you can automatically start the pump. 4. Fire host linkage Kai dust control This control mode needs to start the water pump with the control module, and the fire control host sets the linkage formula, and the fire pump is automatically linked when the external equipment alarms. When the fire control host is reset, the fire pump stops.

Summary. According to the GB standard of "Technical Specifications for Fire Water Supply and Fire Hydrant System", pressure start, remote start and hard-wired start are all realized by relay to automatically start the pump, if the relay and weak current signal failure can not automatically start the fire pump, the fire pump should be started directly by relying on the "mechanical emergency start device" set up by the fire pump control cabinet.

According to the GB standard of "Technical Specifications for Fire Water Supply and Fire Hydrant System", pressure start, remote start and hard-pull wire start are all realized by relay transporter to automatically start the pump, if the relay and weak current signal failure can not automatically start the fire pump, the fire pump should be started directly next to the "mechanical emergency start device" set up by the fire pump control cabinet.

Optionally, it can be installed in the pump room.

Answer]: The electrical control cabinet of the fire pump unit should also be equipped with a mechanical emergency pump function, and should ensure that the control circuit in the control cabinet is open early, and the personnel with management authority will start the fire pump in an emergency. When the mechanical emergency starts, it should be ensured that the grinding rock fire pump works normally within 5min of the alarm.

Hello, according to your problem description, the solution provided to you by the old side is as follows: the fire pump control cabinet and the inspection cabinet and the emergency starting cabinet are connected to the dual power supply mode, there is one way is the mains, there is one way to supply power through the generator, to ensure stable operation, the main AC contactor of the control cabinet and the fire inspection cabinet is connected together with wires, and the ports can be connected together according to the corresponding signs on the equipment, so as to connect the two. Fire automatic inspection cabinet, also known as fire intelligent digital inspection device.

The device can play a role in preventing fire pump rust, moisture, pump abnormal action and other faults, fire electrical control device is generally composed of fire pump control cabinet, double power supply cabinet, wax noise fire pump patrol ship and inspection cabinet.

The fire cabinet of the fire pump room can be started by pressing the button, and the mechanical emergency start, and the front switch will be jumped as soon as it starts, what is the reason.

The pump will only trip when it is turned on, which means that the cable outside your pump control cabinet is fine, and the problem is in the lower part of the control cabinet. First of all, your total knife switch rated current selection is small, resulting in the pump opening the moment the current is too large and the number of checks will cause tripping. Second, your pump inlet wire is grounded, and when it causes the water pump to be energized, open the pump junction box to check if there is any leaking copper wire connected to the pump casing or damaged.

Thirdly, your contactor is faulty, and the contactor coil is grounded or the contactor inlet and outlet wires are grounded. Fourth, look at whether the pump control cabinet is equipped with an overload protection device, whether there is an undervoltage and leakage protection device. The fire distribution line should not be equipped with overload protection devices, and the residual current action protection and undervoltage protection cannot be set.

But it should have short-circuit protection. Therefore, if your power distribution is in line with the fire power distribution standard, then the trip must be a short circuit. Either you set up a protective device that should not be set up for fire power distribution.

Such as overload, undervoltage, overvoltage, residual current, etc. There are electrical problems, there are operational problems. As mentioned above, electrical problems belong to the routine inspection problems.

It should be emphasized that the action of the star-trigram angle switching circuit in the control circuit is normal? Time setting is included. There is also a fire pump is a high-pressure centrifugal pump, and the air should be released before the pump is opened, and the small inlet valve should be closed.

When the motor speed is normal, gradually open the inlet valve until the predetermined pressure is reached. I often forget to turn off the small after the last time I opened the big one. As a result, the starting load is too large, and the current increases and trips.

There are 5 starting methods for fire hydrant system fire pump: 01, interlocking start: the fire hydrant pump should be directly started by the low pressure pressure switch, the flow switch on the outlet pipe of the high fire water tank or the alarm valve pressure switch as a trigger signal.

The fire hydrant pump interlocking starting pump shall not be affected by the manual automatic state of the fire linkage controller. 02. Linkage start pump mode: the action signal of the fire hydrant button is composed and judged by the signal of the detector or the manual alarm button in the same alarm area, and the fire hydrant pump is started in linkage.

The linkage controller is in an automatic state. 03.Remote manual control mode:

The start-stop button of the fire hydrant pump control box should be directly connected to the manual control panel of the fire hydrant pump, and the fire hydrant pump should be directly manually controlled. 04.On-site manual control mode:

The start-stop fire hydrant pump button is set directly on the fire pump control cabinet, which is mainly convenient for pump maintenance. Poor smile 05, mechanical emergency pump: when the above situation fails, Xuxianghan can use the banquet to change the mechanical emergency start, forced air pump mode, has nothing to do with system control, as long as the system power supply is normal, you can start the fire hydrant pump.