RDCPS2 Series Motor Control and Protection Switch

Function and application

RDCPS2 adopt modularized single product structure type, integrated the main functions of traditional low voltage electric appliance of circuit breaker (or fuse), contactor, overload protection relay (or over current, phase failure relay), starter, isolator, motor protector etc. With both remote control and on-site manual control functions, with panel indication and electromechanical signal alarm functions, with over/under voltage protection, with phase missing/phase failure protection, with coordinated Time-Current Protection characteristic (with overload inverse time limit, fixed time-lag, short circuit instant trip, big short circuit instant trip four stage protection characteristic). As per to the requirement to select the functional module or accessories, to make control and protection to various kind of motor load and distribution load

Application

• In control and protection system of electric distribution and motor of Metallurgy industry, Coal mine, Steel industry, Petrochemical industry, Port, Shipping, Railway etc;

• Motor Control Center (MCC) and Electric distribution center;

• Power station and sub-station;

• Shipping and Railway system ( like airport, railway and highway passenger center etc.);

• Expressway lighting and ventilating system;

• Control and protection system of Army garrison (like the border post, Radar station etc.);

• All kind of fire-fighting pump, Draught fans etc.;

• Modernized building lighting, power transfer, pump, fan, air-conditioner, fire-fighting control and protection;

• Hospital and Commercial building ( like shopping mall, super market etc.);

• Telecomm system;

• Information center (like civicism, bank, stock exchange center etc.)

• Single motor control and protection system of factory or workshop;

• Remote lighting control system.

Model Description

Product Introduction

Main Features

• Integrated technology. Integrating circuit protection, motor control, electrical isolation and

• other functions, integrating mechanical structure, electronic technology control and protection, remote communication control and monitoring technology integration.

• Product structure optimization, compact, using new materials, meet environmental protection requirements, with temperature resistance, strength quotient, strong arc resistance, etc., ensuring safe and reliable operation of electrical circuits and equipment during use.

• Module design, each module has innovative highlights and patents. The standardization and professional manufacturing of the modules greatly improve the reliability of the products.

• Human-machine engineering optimization operation and intelligent control interface, suitable for human-machine dialogue, with excellent control and information interactive functions.

• RDCPS2 series products has high breaking capacity, rated operation short-circuit breaking capacity up to 50kA, complete current setting specifications, the setting range is 0.15A ~ 125A,

• Diversified operation control methods, manual control (operation), terminal control (automatic), keyboard control (menu), remote control (host computer training and switching instructions), etc.

• Comprehensive protection functions, short circuit, overload, phase failure, phase unbalance, stall, undercurrent, etc., fully meet the protection needs of various load devices,

• Data detection, providing monitoring functions of circuit parameters, switch status, motor running status, etc., to facilitate users to master the operation of the equipment,

• It has functions of setting reset, fault reset, fault alarm, etc., and provides memory data such as operation record and fault record.

Advantages

• Auxiliary circuit, action control is 2NO+2NC auxiliary control circuit, 2NO+1NC auxiliary signal circuit in operation state, 1NO auxiliary signal (passive alarm) circuit in fault state, can meet automatic control requirements of various circuit systems;

• LCD display the circuit measurement parameters, display cyclically;

• Status indication, equipped with four sets of LED indicators to indicate different status of switches and circuits;

• Extended function, providing functional modules for derivative purposes to meet different usage requirements (reversible, leakage, fuse isolation, etc.);

• Optimized panel, compact layout, user friendly. On the product top is auxiliary connection

• terminal blocks. On the front, it has contact position indication window, operation handle and position indication, LCD and signal indicator, controller button (keyboard), at the bottom is

• communication interface;

• Product rear is main circuit, main circuit connection terminals are on it’s the top and bottom, operation panel on the front, structure is optimized and compact, product width is

• modularized (63A shell frame is 54mm, 125A shell frame is 90mm) );

• Easy mounting, 63A shell frame is equipped with two mounting methods (TH-35mm standard rail mounting, telescopic fixed installation), 125A shell frame is fixed installation;

• Multi controllers types, meet different circuit systems application, e.g., standard model,

• communication model, electronic model, various derivative controllers, with full range control module current available.

1. Contact System Components

The contact system components are mainly composed of base, substrate, static and dynamic

contact, arc chute cover, flash barrier, transformer, terminal block, and card plate, etc., these are CPS’s main circuit part, it’s base is made of thermosetting injection molding material, meets

both electrical strength and structural dimensional accuracy requirements, stable and reliable,

The transformer is a wide current range protection transformer with high magnetic saturation

current, cascading fixed installation, soft connecting wire through the core, on the upper and

lower terminals of the base , Install flash barrier (serial interval isolating), to improve safety use. The product base is available in two mounting styles, standard rail mounting and fixed mounting.

2. Operating Mechanism Components

Operating mechanism is mainly composed of transmission handle, energy storage spring, jumper, lock, shunt, and split push rod. Compact structure, accurate and reliable action, fast and smooth tripping (tripping mechanism of switch’s manual operation and short-circuit instantaneous).

Integrated shunt release and its micro switch and mechanism, stable connection and secure action;

Hand-operated transmission adopts nicety cast zinc parts with high strength and reliable transmission, ergonomic shape operating handle.

Tight junctions between mechanical parts and the other components.

3. Electromagnetic Operating Components

Mainly used for making and breaking of the switch, DC excitation structure electromagnetic component has AlNiCo, to facilitate quick action and saving energy;

Electromagnetic component and the base are hinged by a hole shaft, fastened connection;

Electromagnet is linked with auxiliary parts, adopting the direct push mode, facilitating and secure action.

4. Auxiliary Circuit Components

Integrated auxiliary control circuit and the auxiliary signal circuit, smooth action with other components, reliable motion control;

Convenient and tidy secondary wiring. Combined terminals of auxiliary switch, alarm and control supply power.

5. Control System Components

Control system component is the CPS’s control and protection center, including

measurement sampling circuit, power supply circuit, display circuit, CPU operation circuit, and control output circuit, etc. Centralized layout of electronic component boards, and is well-connected; plug in/out connections, easy maintenance;

Controller Functions

Dimensions

Wiring Diagram

Professional Manufacturing