intelligent metal waterproof mcb power electrical distribution box

1.  Introduction

The meaning of Model as following:

              Picture. 1                                 Picture.2                                   Picture.3

 Intelligent bus components

Scope of Application:

1. It has reliable electric power distribution and control for security.

2. Apply to the equipment of the entrance of community, business and light industry.

Technical Specification of Picture 1:

1. Standard:GB7251.1-2005,SB/T10316-2002;

2. Withstand current capacity of bus in short-time (lcw): C65 18kA;

3. Rating current of bus:125Amp; 250Amp; 400Amp; 630Amp; 800Amp

4. Bus bars: High conductivity of copper plated with tin;

5. Protective shell: PC/ ABS Alloy flame retardant material;

6. Switch series:3PH, 6, 12, 18, 24, 36, 42 return circuit;

7. Master switch of incoming line:Moulded case circuit breaker ( MCCB ), residual-current circuit breaker ( RCCB );

8. Installation way of the branch switch: miniature circuit breaker is installed in Din Rail;

 Technical Data of Picture 1:

Technical Data of Picture 2:

Technical data of Picture 3:

The switch component of rating current changes following the load current automatically.

The Rating current of this circuit breaker can be set by the software program of electric control system automatically. The electric control system of this switch component is constituted by the MCU or another computer as control core,   and is equipped with display, keyboard and relevant control software. The sensing signal of current, power voltage, load voltage and others are collected, calculated, stored and processed through the A/D transformation of the electric control system, to control the electric tripping operation (Electric tripping mechanism and automatic circuit recloser are the operation parts of the electric control system, to complete the operation of tripping protect and reclose). Achieve the function that the Rating current of circuit breaker changes following load fluctuation, and always at a best position. (There are signal conditional circuit between the A/D transformation and sensor, to complete the pretreatment of sign).  

The calculation, memory storage, data processing and protection are completed by the electric control system. The electric control system’s hardware structure adopts the MCU as the core, it’s equipped with A/D transformation, clock generator, program storage, data storage, MCU with many external ports and communicate ports, keyboard and display.

The software program of electric control system is composed of initializer, data acquisition and processing, memory storage, control operation, display update, alarm and drive control, keyboard setup. Besides, it has the function of overload protection, short-circuit protection, ground protection, earth leakage protection, the communication port for network connection and bus interface.

Both of the switch component's parameter of power voltage, load voltage, rating current, phase of load current(In) and power factor, and the parameter of overload protection, short-circuit protection, ground protection and electric leakage protection, both of them can be set by manual operation and remote operation. And the parameter also can be monitored and set by the remote terminal.

 The switch component can judge whether the load of circuit is increasing normally or in fault according to the increase of load current, the phase of load voltage (Ir) and 3/4 power. Adjust and modify the rating current (Ir) of circuit breaker automatically according to actual load which is increasing or decreasing.The rating current (Ir) also can be set manually by the user, and get the best tracking protection of rating current (Ir). Put an end to any cause of the electric fire.

1.      Increase the ability and competitiveness of the suppliers offering intelligent power distribution solutions.

If a complete-set factory can provide an overall solution to intelligent power distribution, its bid acceptance probability will increase.

SPC itac switch components are equivalent to plug-pull switch base plus-pull switch base plus multifunction watt hour meter. SPC itac switch components fully meet the requirements of intelligent power distribution. Group panel configuration by adopting SPC itac switch components makes complete-set factories become suppliers from offering a single set of power distribution panel to posing overall solutions to intelligent power distribution.

2.      High density to reduce the number of panels

SPC has obvious advantages in installation density and can save the number of panels for the users.

3.      Improve technological level

The interior of itac switch components contains feeder circuit’s primary, secondary and intelligent detection parts and all of them are standardized in production and detection. Therefore, if the panel is done with itac switch components, the workload of primary, secondary and intelligent detection in the panels greatly decreases and also the difficulty in group panel configuration reduces, which is beneficial to improve the technological level of group panel configuration.

6.   Technical Parameters

a) Regular service condition

Working power supply of the intelligent parts: AC or DC (suggest to use AC).

The equipment used outdoors, ambient temperature within -10℃~+45℃;

During the outage time, ambient temperature within -25℃~+55℃;

Average relative humidity doesn’t exceed 95% in 24h,average relative humidity doesn’t exceed 90% in30 days;

There is no electric or explosive dust, the gas or steam which can corrode metal and destroy the insulation at the operation site.

b)  Sampling precision of the AC.

Measurement accuracy: Class 0.5

c)  Discrete input

High level (Logic 1): DC 24V, Low level( Logic 0): DC 0V;

d) Output connection terminal of relays

    Capacity of the electric shock: AC 250V/5A

8.  Function of the communication

This switch component have one RS485 communication interface, contact with the host computer.

8.1 Telecommunication realizes the following functions:  

   Telecommand: remote control of the “Event state of alarm”, “Event state of malfunction” and “state of switching value”

   Telemetering:  The real-time measurement results of single phase current could be read remotely.

   Remote regulation: All constant value can be read and they could be modified remotely under remote working manners. 

   Telecontrol:

Control switching-closing of feeder switch remotely. As for the MCCB, it controls the switch-on-off by the collocating of operating mechanism directly; Use intelligent autoreclosure mini circuit breaker for the feeder of the miniature circuit breakers to realize the control of switching-closing.

   Time hack: The clock device setting could be read and it could be modified remotely under remote working manners. 

8.2 Remote control

Conditions of the remote control of the relative feeder line:

(1), Set the operating mode to “remote”

(2), “Yes” in the plate (the plate showing remote control: 1. Yes 2. No)

8.4 Event record 

The event of alarm and action can be recorded accurately: year – month – date – hour – minute – second – millisecond, operating value, content of operating event. Event record is saved in device. And it won’t miss when the device loss power. The cause and effect of the event can be analyzed through viewing records.

Certification