? ? ? ? ? ?

? ?消防泵控制柜簡介-----

? ? ? ? ? ? ?

? ?一、功能

12，自動噴淋水泵控制柜應可接受泵組出口水管上的壓力傳感器的壓力變送信號，當壓力低于穩壓泵啟動壓力值時，控制柜發出指令開啟穩壓泵,當系統達到壓力設定值時，關閉穩壓泵；當壓力低于自動噴淋主泵啟動的壓力值時，控制柜發出指令開啟自動噴淋主泵，給噴淋系統提供達到設計值的足夠的水量。

??要求及規定

消防泵組控制系統由微機程序和電路控制，電控箱將控制裝置的全部工作狀態，并通過“檢查控制系統”對整個裝置進行檢查，一旦發生故障將發出聲光報警信號。 投標人所供裝置應有兩種工作狀態，即自檢和緊急情況。

I. function

1. The water pump control cabinet shall be provided by the manufacturer with complete qualification certification, and the control cabinet shall include but not limited to the following functions and requirements: 1. All kinds of electrical components shall meet the specifications and standards.






2. The control cabinet shall meet the function and control requirements of the system. 3. The control panel shall display all working parameters in Chinese and English. 4. Regulations on phase color of power line in cabinet: phase line L1 (phase a) yellow

Phase line L2 (phase B) green phase line L3 (phase C) red zero line light blue ground wire yellow green two colors

5. Sequence of power lines in the cabinet: from the front of the cabinet, from top to bottom, from left to right, from inside to outside, the phase lines are L1, L2

The order of L3.

6. It shall have the protection function for the pump motor, such as overload, over voltage, short circuit, lack of phase under voltage, overheating, etc., with sound

Light alarm function, but only alarm function is provided, tripping is not allowed.

7. It has resistance loss compensation function and can be set by external parameters (such as temperature, time, altitude and flow)

Value to adjust.

8. It has the functions of local manual operation (single pump can be tested) and digital remote control, including the start and stop of the device. The control cabinet can clearly display the operation and failure of water pump, and send out audible and visual alarm signals. Able to use LCD display system

Relevant parameters.

9. It has the function of monitoring the system, i.e. limiting the maximum and minimum measured values (pressure and flow). Communication bus function.

10. Each control cabinet shall be provided with the following passive contact signals and interface terminals, and shall be equipped with

Function of passive contact signal to fire alarm system. The fire alarm system controls the start and stop of the fire pump through the passive contact signal.

11. The manual / automatic switch status signal of each fire pump (through passive contact signal) is transmitted to the fire alarm system. The start / stop status signal of each fire pump (through passive contact signal) is transmitted to the fire alarm system. Each fire pump fault signal (through passive contact signal) is transmitted to the fire alarm system. Enough terminals shall be reserved in the control cabinet according to the functional requirements, and 25% of empty terminals shall be reserved.

Passive electric shock signal shall be reserved for the fire alarm system in the fire pump control cabinet, and the tenderer is responsible for coordinating and determining the reserved position of passive contact signal contact.

12. The automatic spray water pump control cabinet shall be able to accept the pressure transmission signal from the pressure sensor on the outlet water pipe of the pump set. When the pressure is lower than the starting pressure of the stabilized pressure pump, the control cabinet will send a command to start the stabilized pressure pump, When the system reaches the pressure setting value, close the stabilized pressure pump; when the pressure is lower than the starting pressure value of the automatic spray main pump, the control cabinet sends out a command to start the automatic spray main pump to provide the spray system with enough water to reach the design value.



Requirements and regulations



The control system of fire pump unit is controlled by microcomputer program and circuit. The electric control box will control all working conditions of the device and check the whole device through "check control system". Once there is a fault, it will send out an audible and visual alarm signal. The equipment provided by the tenderer shall have two working states, namely self inspection and emergency.



General provisions for electrical appliances

1. Molded case circuit breaker

The molded case circuit breaker shall be designed and manufactured according to iec898 standard, with rated voltage not less than 440V, rated short-circuit current not less than 35ka, and short-circuit instantaneous, overload delay and ground fault protection. The protection ratio is 10-14. The molded case circuit breaker adopts manual operation and thermal overload and short-circuit instantaneous release with load. It can be designed as remote control shunt release with accessories and auxiliary equipment in case of special requirements. 2. Miniature circuit breaker

Miniature circuit breakers shall be designed and manufactured according to IEC 898 standard, with rated voltage not less than 440V, rated breaking current not less than 10kA, mechanical life not less than 20000 times, and short-circuit instantaneous and overload delay protection. 3. contactor

The contactor is an indoor air breaking electromagnetic mechanical switch, which shall meet the following standards: (1) iec947-4-1 low voltage switch and control equipment

(2) Iec158-3 low voltage control equipment Part 1: Contactors

(3) Iec445 uses alphanumeric symbols to identify electrical terminals and wiring marks. All contactors shall be able to operate normally without interruption or interruption when the power on duration is 60% and the use category is AC3. The rated operating voltage of contactor shall not be less than 440V. The rated operating current shall not be less than the rated operating current at startup.

The contactor adopts the building block structure, which is easy to change the coil and contact. The test position of the contactor shall be normally open, and it can operate normally at any installation position. All terminals shall be connected from the front. 4. Thermal relay

The thermal relay shall meet the requirements of iec947-4-1.

The tenderer shall provide time current characteristic curve. Curve tolerance shall not exceed ± 10%. The setting current range of thermal relay should include the rated current of motor.