IDCPS control and protection switchgear

Overview:

CPS is "Control and Protective Switching Device", which is a product of low-voltage electrical appliances, as a new major product, its product category code is "CPS", which is the abbreviation of "Control and ProtectiveSwitching Device". The standards are IEC60947-6-2 (1997) "Low-voltage switchgear and controlgear Part 6: Multifunctional appliances Section 2: Control and protective switching appliances" (first edition, August 1992) and GB 14048.9-2008 "Low-voltage switchgear and controlgear Multifunctional appliances (equipment) Part 2: Control and protective switching appliances (equipment)" (equivalent to IEC60947-6-2). IEC60947-6-2) is adopted.

The main feature of CPS series control and protection switchgear is that it realizes integrated, internally coordinated control and protection functions in a single structural form, and can replace a variety of separate components such as circuit breakers (fuses), contactors, overload (or overcurrent, phase break) protection relays, starters, isolators, motor integrated protectors, etc. ◇CPS has both remote automatic control and local control. The CPS has the function of control operation in the way of both remote automatic control and local human control. It has the characteristics of coordinated time-current protection, continuous operation after short-circuit, high breaking capacity, small flying arc distance and long life, adjustable protection speed and current, convenient operation and various complete accessory modules, which can realize the control and protection of motor load distribution load.

The emergence of CPS series control and protection switchgear fundamentally solves the problems of unreasonable control and protection caused by the unreasonable choice of traditional sub-excitation components (usually circuit breakers or fuses + contactors + overload relays), especially overcoming the phenomenon of uncoordinated protection and control characteristics when electrical products of different assessment standards are combined together. It improves the operational reliability and continuous operation performance of the control and protection system.

The CPS series control and protection switchgear products are relatively large in size, and the bimetal technology used for protection ◇The second generation of products has solved the problem of large size ◇But there is no major breakthrough in protection technology, Overcoming the shortcomings of the CPS series, it brings together the advantages of discrete components of low-voltage electrical appliances, with complete functions and reliable performance, providing a basic component for the simplification and optimization of low-voltage power distribution and control systems.

Function and use:

IDCPS adopts a modular single product structure type, integrating the main functions of traditional circuit breakers (fuses), contactors, overload (or overcurrent, phase break) protection relays, starters, isolators, motor integrated protectors and other low-voltage electrical products, with remote automatic control and local direct human control functions, with panel indication and electromechanical signal alarm function, with over-voltage under-voltage protection function It has the function of phase break and phase loss protection, the function of under-current and under-power, and the function of time and current protection (with four protection characteristics of overload reverse time limit, fixed time limit, short-circuit instantaneous and extra short-circuit instantaneous) ◇According to the needs of optional function modules or accessories, it can realize the control and protection of various motor loads and distribution loads.

IDCPS is mainly used in AC 50Hz (60Hz), rated voltage up to 690V, rated current of main body from 6.3A to 125A, adjustable working current of short energy controller from 0.16A to 125A, and control power from 0.05KW to 55KW to connect, carry and break the current under normal conditions (including the specified overload conditions) in the power system, and can connect, carry and break the specified non-current. It is capable of connecting, carrying and breaking the current under normal conditions (including specified overload conditions), and of connecting, carrying and breaking the current under specified abnormal conditions (such as short circuit).

Model number and meaning

The complete composition and model of the basic type should include: the main body model + main body decoupler rated current and breaking capacity level, intelligent decoupling, product function, control power.

Main parameter description

◇Two outline installation sizes:125 type and 45 type.

◇The number of main circuit poles is divided into:three poles and four poles.

◇The basic configuration of IDCPST control and protection switchgear:Main body + intelligent controller + auxiliary contact group.

◇The main body is composed of the basic modules of the main circuit, namely: contact system module, short-circuit decoupler, electromagnetic system module and operation mechanism system module.

◇The short-circuit breaking capacity grade: 35KA for the economical type (), 50KA for the standard type (Y), and 80KA for the high breaking type (H).

◇The breaking time under expected short-circuit current is 2~3ms, and the current limiting factor is 0.2 or less.

◇The contact group is composed of short-circuit alarm contact, overload alarm contact and a group of 2 normally open and 1 normally closed auxiliary contacts, 02 is 2 normally open and 1 normally closed + 1 short-circuit and 1 overload, 06 is 3 normally open and 3 normally closed + 1 short-circuit and 1 overcut, and can also be combined according to user requirements,

◇However, the number of contacts cannot exceed 11 pairs.

◇The rated current of intelligent controller e:0.4/1/2.5/4/6.3/8/10/12/16/18/20/25/32/40/45/50/63/80/100/125A.

◇The rated current of main body n:45/125A.

◇Number of poles: expressed by two digits (the first digit indicates the number of product poles and the second digit indicates the number of protection poles), such as 33 indicates 3 poles with 3 poles of protection and 30 indicates 3 poles without protection.

◇Control power supply voltage: M: AC220V, Q: AC380V.

Product type

◇Configuration of basic product IDCPSI: main body, intelligent decoupler, auxiliary contact group.

◇The electrical schematic diagram of IDCPSI for basic type products is shown in the basic electrical control diagram that follows.

◇Reversible control and protection switchgear IDCPS-N: With IDPS: basic type as the main switch, combined with mechanical interlock and electrical interlock and other accessories, it constitutes reversible control and protection switchgear, which is applicable to reversible or bidirectional control and protection of motors.

◇IDCPS-S: The products with rated current of 125A and below use IDPS as the main switch and mechanical lock, electrical interlock and other accessories to form CB or PC level dual power automatic transfer switch ATSE; ATSE with rated current of 125A or below is PC level.

◇The basic type of IDPS is the main switch, and it is combined with appropriate contactors, time relays, mechanical interlocks and electrical interlocks to form Y-4 voltage reducing starter IDCPS-L, autotransfer voltage reducing starter IDCPS-Z, and resistance voltage reducing starter IDCPS-R,

◇To realize the reduced-voltage starting of motors and various protection.

◇Two-speed control IDCPS-D: The IDCPS basic type is used as the main switch and combined with appropriate contactors, electrical interlocks and other accessories to form a two-speed controller, which is suitable for the control and protection of two-speed motors.

◇Three-speed controller IDCPS-D3: The basic type is used as the main switch and combined with appropriate contactors, electrical interlocks and other accessories to form a three-speed controller, which is suitable for the control and protection of three-speed motors.

◇Protection and control box IDXBKI: IDCPS is used as the main switch and installed in the standard protection box to form a power terminal box, which is suitable for outdoor and remote control and protection of individual loads.

◇Additional function types: fire protection type (F type), isolation type (G type), leakage type (L type), communication type (T type), power distribution type (P type).

IDCPS-T Communication product features and descriptions

 A、Overload long delay protection                                         H、Overvoltage protection

 B、Motor blocking protection                                                 I、Undervoltage protection

 C、Short-circuit transient protection                                       J、Under-current protection

 D、Overload pre-alarm function                                             K、Broken phase loss protection

 E、Protection during start-up timeout                                    L、Fault inquiry function

 F、Three-phase current unbalance protection                        M、Automatic reclosing function

 G、Broken phase loss protection                                             N、Fault alarm signal contact output function

Application field

IDCPS series products have a series of advantages such as integrated control and protection functions, modular structure, miniaturization, high protection level against environmental pollution, high short-circuit breaking capacity, short flying arc distance, long service life, complete protection function, high continuous operation performance and reliability, easy installation, use and maintenance operation, etc. They are widely used in industrial facilities infrastructure, fire-fighting systems and commercial and civil facilities:

◇Power distribution and motor protection and control systems in the fields of gold, coal, steel, petrochemical, port, ship, railroad, etc.

◇Motor control centers (MMC) and power distribution centers

◇Power stations and substations

◇Port and railroad systems (such as airports, railroad highway passenger centers, etc.)

◇Highway lighting and ventilation systems

◇Army resident control and protection systems (such as border guard posts, radar stations, etc.)

◇Fire pumps and fans for various occasions

◇Modern building lighting, power conversion, pumps, fans, air conditioners, fire fighting, lighting, etc.

◇Remote control lighting system

Classification

◇Motor protection and power distribution protection according to protection objects

◇Frequency operation and infrequent operation according to operation frequency

◇According to the wiring mode: before board, after board, plug-in type

◇According to the working principle, digital tube controller and liquid product controller are classified.

Main features

◇Compared to systems consisting of discrete appliances (see table below)

A, with control and protection from the characteristics of the cooperation

IDCPS system control and protection switching appliances set control and protection functions in one, equivalent to the circuit breaker (fuse) + contactor + thermal relay + auxiliary appliances, a good solution to the separation of components can not or difficult to solve the problem of matching the protection and control characteristics between the components, so that the protection and control characteristics with more perfect and reasonable (with inverse time, fixed time and instantaneous three protection characteristics).

(with inverse time, fixed time and instantaneous protection characteristics). As long as the load power or current can be correctly selected according to a single product, instead of the previous including from the power inlet to the negative load end of a variety of appliances, without capacity reduction: greatly reduce the workload of designers.

B, with unparalleled operational reliability and continuous operation of the system performance

IDCPS can be put into use without maintenance after breaking the short-circuit current, that is, continuous operation after breaking the short-circuit fault performance: IDCPS after breaking the short-circuit current test, still has more than 6,000 times the AC-44 electrical life, which is difficult to achieve by discrete devices such as circuit breakers system, IDCPS of this feature improves the operational reliability of the system and

This feature of IDCPS improves the operational reliability of the system and the continuous operation of the system, in which the operating short circuit breaking capacity Ics is 80kA.

C. Material and energy saving

IDCPS has the advantages of small size, small installation area, few contacts, low power consumption of the line, energy saving, material saving, etc.

◇Technical performance comparison table

◇High breaking capacity and small flying arc distance compared to molded case circuit breakers

IDCPS in 380V rated operation short circuit breaking capacity sc (o-co-co) to high breaking type for 80KA, standard type for 50A, economic type for 35KA in 50KA expected short circuit current breaking time is only 2-3ms, current limiting coefficient of 0.2 or less, reaching the level of molded case circuit breakers, close to the level of fuse current limiting, greatly limiting the short circuit current on the system The dynamic and thermal impact of short-circuit current on the system is greatly limited, and the flying

The arc distance is less than 30mm.

◇Compared with the protection system composed of molded case circuit breaker. It has the feature of adjustable protection current.

IDCPS overload protection current can be adjusted on the panel according to the load power. Overcome the short-circuit protection of the short-circuit circuit breaker can not be adjusted by the user after the factory short-circuit protection current shortcomings, so that IDCPS products even if installed at the end of the line, the short-circuit current is small, also has a good short-circuit protection function.

The short-circuit protection function of IDCPS products is also very good even when the short-circuit current is small at the end of the line.

◇Compared with the performance of the contactor, it has a long life and easy to operate.

The mechanical life of IDCPSI is 5-10 million times, and the electrical life of AC-43 is 1.2-1.5 million times, so it can be operated manually in the field, and the automatic control function can be realized from a distance.

Other features

◇Complete set of accessories

Auxiliary contacts, signal alarm contacts, door or drawer panel operation mechanism, control circuit conversion module, etc. can form a complete control and protection unit on a single product to realize coordinated control and protection functions.

◇Flexible installation angle

Horizontal, vertical and horizontal installation do not affect the performance. It can be widely used in compact sets, including fixed or drawer type MCC cabinets, and has incomparable advantages of separate components.

◇Reliable installation and high protection level

It is especially suitable for wet places in civil buildings, basements, pump rooms, coal mines, ports, ships, petrochemicals, etc. It is an alternative to the current electromagnetic starters, protective starters and combination starters.

Energy saving

Traditional products use full voltage and full current to supply power to the solenoid coil when starting, which consumes a lot of power; and the power consumed is no less than 22 watts to maintain the full voltage of the solenoid coil after it is connected. After this product is powered on and started, it will use small voltage and small current to keep the solenoid coil closed, and the power consumed is no more than 2 watts, so the energy saving is more than 90%

Centralized control

Traditional products can only be displayed and controlled one-to-one in the cabinet, but this product can be connected to the master console through the software protocol and 485 communication interface to display and control multiple products through the bus, and the parameters can be set through the master console, and the master console can be connected to the computer through the protocol to realize the "four remote" function, especially for MM motor control center.

Parameters of the main circuit

The main circuit is mainly composed of the main body and intelligent decoupler, these two parts constitute the minimum configuration of IDCPSI products can be applied body rated current n, the agreed heat current th, rated insulation voltage Ui, rated frequency, rated operating voltage Ue and optional intelligent controller rated operating current le range or control power range is shown in the following table.

A、Basic parameters of the main circuit

B、Main parameters of the main circuit

Note:a) The above power model is the technical parameters of Y series three-phase asynchronous motor.

         b) If you have specific requirements, please contact the manufacturer

Applicable rated working system

a) Eight-hour work day

b) Uninterrupted operation

c) intermittent cycle working system: IDCPS in this working system load factor (energized duration) for different rated operating voltages and different use categories of the operating cycle environmental times operating frequency) limit value is specified in the table

 Operating frequency limit value

Time-to-current characteristics

Thermal memory characteristics

Repeated overload load may cause conductor heating, intelligent controller due to overload, short delay or fixed time limit and other fault action, with the simulation of the thermal effect of the characteristics of the double gold piece function, the energy after the overload shall be released after about 30 minutes junction east, short circuit delay after the energy shall be released after about 15 minutes junction east this release time if the IDCPS switch is closed again and the occurrence of overload or short circuit delay and other faults, the action time becomes shorter, the line or equipment to get the protection of the operation.

Form of protection

△ fast short-circuit instantaneous protection: the protection current is related to the rated current of the switch body, the rectified current s=20In±20% (rms) is not adjustable, the action time ≤2-3 ms.

△ overload long-delay protection: the detent characteristic is inverse time characteristic 12t=constant, IrI=(0.3~1)le panel 8 levels adjustable, detent curve in 7.2r, detent time (2.08-28.8) seconds to choose, detent time error is: 2Ir below 10%, 2lrl above ±20%; factory detent curve is set in 6IRL, detent time is 3 seconds.

△ overload long delay thermal memory: overload energy is released within 30 minutes + OFF.

△ overload short delay protection: divided into inverse time short delay t + ON and fixed time short delay. I2t + OFF two types of detrashing characteristics: rectified current i2 = 6789101111 + OFH panel 8 and adjustable motor seal into r2 = 3/3.5/4/4.5/5/5.5/6lr1 + OFF panel 8 poles adjustable (distribution protection), current error of Shi 10%, time error of ±20%; the debounce curve in 8lr1 when the debounce time for (0.05 ~ 1) seconds within the selection.

△ overload short delay thermal memory: overload energy translation within 15 minutes +OF

△ short-circuit transient protection: rectification current r3=8/9/10/11/12/14/16r+OFF panel 8 levels adjustable, current error is earth 15%: action time is less than 50 milliseconds, factory rectification in 14Irl (current rms).

△ phase loss protection: action setting time is selected between (1~60) seconds +OFF, time error is ±20%; factory setting is 10 seconds.

△ phase failure protection: action setting time is selected between (1~60) seconds + OFF, error is 20%; factory setting is 10 seconds

△ under-current protection: the ratio of minimum current to rated current is selected between (40%~100%) + OFF, error is 15%, action setting time is selected within (1~60) seconds; error is ±20; factory setting is 40%, time is 10 seconds

△ three-phase unbalance protection: any two-phase current unbalance rate of more than (20% to 100%) + OF between the selection, the current error of 15%, the action of the adjustment time in (1 ~ 60) seconds to choose, the error of 20%; factory adjustment in 30%, the time for 10 seconds. (Unbalance rate = (high current, small current).

△ overvoltage protection: three phases (145~150)%Un+OFF between the selection, action adjustment time in (1-60) seconds to choose, factory adjustment in 120% of the rated voltage, error ± 5% time for 10 seconds, error ± 20%).

△ undervoltage protection: three phases (50~95)%Un+OFF, action setting time (1~60) seconds to choose; factory setting at 85% of the rated voltage error of ±5%; time of 10 seconds, error of 20%.

△Start delay: only for phase loss, phase failure, overvoltage, undervoltage, short circuit, leakage and three-phase unbalance protection, to avoid starting high current and overcurrent: the calibration time is (1~99) seconds +OFF between the selection. Factory setting in 5 seconds, the error is 20%.

△ Online programming function: with handheld editor interface.

△Fault indication: using light to show the type of fault.

Action characteristics for motor control (use category: AC-42, AC-43, AC-44)

The action characteristics of (AC-40, AC-41) for distribution line load use category

Product usage categories

Product usage categories

◇Electrical clearance, creepage distance and Uimp, etc.

◇Frequency withstand voltage test value and adiabatic green resistance minimum value

◇Mechanical life

◇Mechanical life of the main body and its modules

◇Electric life

The current is 0.05-0.1s from the turn-on current value down to the breaking current value, and the turn-on time of AC-43 should be selected according to the principle that the number of specified loads and the equivalent heating current in one cycle is not greater than the agreed heating current.

◇The number of times of electrical life of the main circuit and the conditions of switching on and breaking off

◇Ability to connect, carry and break short-circuit currents

◇Main Body

  It has short-circuit protection (similar to the short-circuit protection function of MCCB and fuse), automatic control (similar to the remote control function of contactor), local operation and indication function. It is mainly composed of body shell, main body panel, base plate, electromagnetic drive mechanism, operating mechanism, main circuit contact group (including contactor system, short circuit striker) and other components.

Electromagnetic drive mechanism

Electromagnetic drive mechanism mainly consists of control coils, cores, control contacts and bases (similar to the electromagnetic control system of the contactor, with under-voltage protection function), which can accept on/off operation commands and control the main contacts in the main circuit contact group to connect or break the main circuit. The terminal mark of the coil is A1 and A2.

Operating mechanism

It can accept the instantaneous short circuit signal of each contact group and the fault signal from the intelligent decoupler, and cut off the control coil circuit by the electromagnetic operating mechanism to break the main circuit through the control contact. Reset by the operation knob after the fault is removed.

IDCPS operating mechanism of the working state in the main panel of the symbol and the meaning of the indicator position is shown in the figure below.

Main circuit contact group (including contact system, short circuit decoupler)

主电路接触组由动、静双断点触点、栅片灭弧室和限流式快速短路脱扣器动作机构组成,每相互独立;主电路接触组中装有限流式快速短路脱扣器与高分断能力的灭弧系统,实现高限流特性(限流系数小于0.2)的后备保护,其脱扣电流整定值s不可调整,仅与主体额定电流有关,其额定值为:201nt20%(有效值)。在负载发生短路时,脱扣器约在2~3ms内快速冲击打开主触头,同时带动操作机构切断控制线图电路使主电路各全部断开。

Operation Panel

Smart Controller

With adjustable overload and adjustable overcurrent protection function, with time delay, temperature compensation, phase failure, phase loss, undercurrent, three-phase unbalance, overvoltage, undervoltage and low overload good protection function, the rectification current value, including overload counter time long delay detrashing rectification current value Ir1, short circuit short delay rectification current value or fixed time rectification current value Ir2 are adjustable. According to the principle and use are divided into a variety of categories specifications.

Auxiliary contact module

The basic parameters of the auxiliary contacts are shown in the following table, the auxiliary contacts are electrically separated, that is, each group of contacts can be connected to different voltages; each pair of terminals of the auxiliary contacts is represented by 2 digits; the single digit of the sign is the number of functions, 1, 2 means normally closed contacts, 3, 4 means normally open contacts: the ten digits of the sign is the number of sequences, the terminals belonging to the same contact use the same number of sequences, and the contacts with the same function use different sequences. 95, 98 marks the fault signal normally open contacts, 05, 08 marks the main short-circuit signal normally open contacts, when the main circuit overload (or over-current overvoltage, phase failure, etc.) fault operation knob in TRIP, 95, 98 fault alarm signal closed, the main circuit break; short-circuit operation knob in TRIP, 05, 08 main short-circuit alarm signal closed, 95, 98 fault alarm signal also closed, 95, 98 short-circuit signal closed, 95, 98 fault alarm signal closed. When the operation knob is in TRIP, 05, 08 main short circuit alarm signal is closed, 95, 98 fault alarm signal is also closed, and the main circuit is broken.

◇Mechanical or electrical passive auxiliary contacts:

Linkage with the main circuit contacts or intelligent control, with electrical control and indication functions, divided into various specifications according to the number of contact pairs

Mechanical or electrical passive signal alarm contacts

It is integrated with the auxiliary contact and linked with the operation mechanism or intelligent controller, and has the function of indicating the working state and the cause of failure.

Mechanical passive and isolated auxiliary contacts

Outline and mounting dimensions of the three-pole basic product

Basic electrical control diagram

Ordering Instructions

When ordering, the user should specify the IDCPS control and protection switch electrical product model, specifications, short-circuit decoupler rated current, intelligent controller rated operating current, the nature of the load, coil control voltage, wiring methods and other content.

Example 1: Order IDCPS-100Y/B63/02MF: IDCPS fire protection type products, breaking capacity 50KA, main body striker rated current 100A, three-pole with three-pole protection, digital tube type intelligent controller rated operating current 63A, 2 normally open 1 normally + 1 short circuit 1 fault auxiliary contact, coil control power voltage 220V, with fire protection function.

Example 2: Order IDCPS-N-45/33E40/06ML means: IDCPS reversible products, breaking capacity 35KA, main body striker rated current 45A, three poles with pole protection, LCD intelligent controller rated current 40A, 3 normally open 2 normally closed + 1 short circuit 1 fault auxiliary contact, coil control power voltage 220V, with leakage function.