CAW6 ACB Intelligent Universal Circuit Breaker
CAW6 ACB Intelligent Universal Circuit Breaker

CAW6 ACB Intelligent Universal Circuit Breaker

Overview:
CAW6 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker) is suitable for AC 50Hz, rated voltage 400V, 690V, rated current 630 ~ 6300Alt is mainly used in distribution networks to distribute electrical energy and protect circuits and power equipment from overload, under-voltage, short circuit, single-phase ground faults. The circuit breaker has a variety of intelligent protection functions, which can achieve selective protection and precise action. lts technology can reach the advanced level of similar international products, and it is equipped with a communication interface,which can carry out“four remote”to meet the control center and requirements for automated systems. Avoid unnecessary power outages and improve power supply reliability.This series of products complies with lEC60947-2,GB/T14048.2 standards.
if need any qualification or test report,please email to info@changangroup.com.cn
Inquire Now

CAW6 ACB Intelligent Universal Circuit Breaker

Inquire Now
Description

Scope Of Application

 

CAW6 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker) is suitable for AC 50Hz, rated voltage 400V, 690V, rated current 630 ~ 6300A.It is mainly used in distribution networks to distribute electrical energy and protect circuits and power equipment from overload, under-voltage, short circuit, single-phase ground faults. The circuit breaker has a variety of intelligent protection functions, which can achieve selective protection and precise action. Its technology can reach the advanced level of similar international products, and it is equipped with a communication interface, which can carry out “four remotes” to meet the control center and requirements for automated systems. Avoid unnecessary power outages and improve power supply reliability.
This series of products complies with IEC60947-2.

 

Model Meaning

 

 

Normal Working Condition

 

1. The ambient air temperature is -5℃~+40℃, and the average temperature of 24 hours does not exceed +35℃.
2. The altitude of the installation site does not exceed 2000m
3. When the maximum temperature of the installation site is +40℃, the relative humidity of the air shall not exceed 50%, and higher relative humidity can be allowed under lower temperature; the average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is +25℃, taking into account the condensation on the product surface due to temperature change
4. The pollution degree is level 3
5. The installation category of the main circuit of the circuit breaker, the under-voltage controller coil and the primary coil of the power transformer is IV, and the installation category of the other auxiliary circuits and control circuits is III
6. The vertical inclination of the circuit breaker installation does not exceed 5
7. The circuit breaker is installed in the cabinet, protection level is IP40; if add door frame, the protection level can reach IP54

 

 

Classification

 

1. The circuit breaker is divided into three poles and four poles according to the number of poles.

2. The rated current of the circuit breaker is divided into 1600A, 2000A, 3200A, 4000A, 5000A(capacity increased to 6300A).

3. Circuit breakers are divided according to purposes: power distribution, motor protection, generator protection.

4. According to operation mode:
◇Motor operation;
◇Manual operation (for overhaul and maintenance).

5. According to installation mode:
◇Fix type: horizontal connection, if add vertical bus, the cost of vertical bus will be
calculated separately;
◇draw-out type: horizontal connection, if add vertical bus, the cost of vertical bus will be calculated separately.

6. According to the type of tripping release:
Intelligent over current tripping release, Under-voltage instantaneous (or delay) release and Shunt release

7. According to the type of intelligent controller:
◇M type (general intelligent type);
◇H type (communication intelligent type).


 

Functional Characteristics of Different Types of Intelligent Controllers

 

M type: In addition to the four-section protection features of overload long time delay, short circuit short time delay, instantaneous and earth leakage, it also has fault status indication, fault record, test function, ammeter display, voltmeter display, various alarm signal output, etc It has a wide range of protection characteristic area values and complete auxiliary functions. It is a multi-functional type and can be applied to most industrial applications with high requirements.

H type: It can have all the functions of M type. At the same time, this kind of controller can realize the "four remotes” functions of telemetry, remote adjustment, remote control and remote signaling through the network card or interface converter. It is suitable for the network system and can be centrally monitored and controlled by the upper computer.

1. Ammeter function
The current of the main circuit can be displayed on the display screen. When the selection key is pressed, the current of the phase in which the indicator lamp is located or the maximum phase current will be displayed. If the selection key is pressed again, the current of the other phase will be displayed.

2. Self-diagnosis function
◇The trip unit has ◇ the function of local fault diagnosis. When the computer breaks down, it can send out an error “E” display or alarm, and restart the computer at the same time,the user also can disconnect the circuit breaker when needed
◇When the local ambient temperature reaches to 80℃ or the temperature in the cabinet exceeds 80℃ due to the heat of the contact, an alarm can be issued and the circuit breaker can be opened at a small current (when required by the user)

3. Setting function
Press the long delay, short delay, instantaneous, grounding setting function keys and +, – key to set the required current and delay time arbitrarily according to user requirements,and press the storage key after the required current or delay time is reached. For details, see the chapter on installation, use and maintenance. The setting of the trip unit can immediately stop executing this function when an overcurrent fault occurs.

4. Testing function
Press the setting key to make the set value current too long delay, short delay, instantaneous state, indicator shell and +、- key, select the required current value, and then press the testing key to carry out the test of release. There are two types of testing keys; one is a non-tripping testing key, and the other one is tripping testing key. For details, see the tripping device test in the chapter of Installation, Use and Maintenance. The former testing function can be performed when the circuit breaker is connected to the power grid.
When an overcurrent occurs in the network, the testing function can be interrupted and the overcurrent protection can be performed.

5. Load monitoring function
Set two setting values, Ic1 setting range (0.2~1) In, Ic2 setting range (0.2~1) In, Ic1 delay characteristic is inverse time limit characteristic, its delay setting value is 1/2 of long delay setting value. There are two kinds of delay characteristics of Ic2: the first kind is the inverse time limit characteristic, the time setting value is 1/4 of the long delay setting value; the second kind is the time limit characteristic, the delay time is 60s. The former is used to cut off the least important load of the lower stage when the current is close to the overload setting value, the latter is used to cut off the unimportant load of the lower stage when the current exceeds the value of Ic1, then current drops to make the main circuits and important load circuits remain powered. When the current drops to Ic2, a command is issued after a delay, and the circuit that has been cut off by the lower stage is turned on again to restore the power supply of the entire system, and the load monitoring feature.

6. Display function of the tripping unit
The tripping unit can display its operating current (ie ammeter function) during operation, display the section specified by its protection characteristics when a fault occurs, and lock the fault display and fault current after breaking the circuit, and display the current, time and section category of the setting section at the setting time. If it is a delayed action, the indicator light flashes during the action, and the indicator light changes from flashing to constant light after the circuit breaker is disconnected.

7.MCR on-off and analog tripping protection
The controller can be equipped with MCR on-off and analog tripping protection according to the user’s needs. The two modes both are instantaneous actions. The fault current signal sends action instructions directly through the hardware comparison circuit. The setting current values of the two actions are different. The setting value of the analog tripping is high, which is generally the maximum value of the instantaneous protection domain value of the controller (50ka75ka/100kA), The controller works all the time and is generally used as a backup. However, the setting value of MCR is low, generally 10kA. This function only works when the controller powers on, it does not work during normal closed operation. The user can require special setting value with accuracy of ±20%.

Parameter

Main Technical Parameters

 

1. The rated voltage and rated current of circuit breaker

Rated current of frame level Inm(A)

Poles numbers

Rated frequency(Hz)

Rated insulated voltage Ui(V)

Rated working voltage Ue(V)

Rated current In(A)

N pole rated current

1600

34

50

1000

400、690

200、400、630、800、1000、1250、1600

50%In100%In

2000

400、630、800、1000、1250、1600、2000

3200

2000、2500、2900、3200

4000

3200、3600、4000

5000

400、5000、6300(Capacity increase)

 

 

2. The rated short-circuit breaking capacity of the circuit breaker and the withstand current during short circuit (the arcing distance of the circuit breaker is “zero”)

 

Rated current of frame level In(A)

 

1600/1600G

2000/2000G

3200

4000

5000

Rated ultimated short circuit breaking capacity Icu(kA)

400V

55/65

65/80

100

100

120

690V

35/50

50

65

85

75

Rated short circuit breaking capacity Ics(kA)

400V

55/65

40/50

65

100

100

690V

35/50

40

50

85

75

Rated short circuit making capacity Icm(kA)(Peak)/cosφ

400V

110/143

176/0.2

220/0.2

264

264/0.2

690V

73.5/105

105/0.25

143/0.2

165

187/0.2

Rated short time withstand current Icw(1s)

400V

42/50

40/50

65

100

85/100(MCR)

690V

35/42

40

50

85

65/75(MCR)

 

 

3. Operation performance of circuit breaker

 

Rated current of frame level Inm(A)

1600(G)

2000(G)

3200

4000

5000

Operating cycles per hour

Electrical life

AC690V

1000

500

500

500

500

20

AC400V

1000

500

500

500

500

20

Mechanical life

Maintenance free

2500

2500

2500

2000

2000

20

With maintenance

5000

10000

10000

8000

8000

20

 

Note:
(1) During each power-on operation cycle, the maximum time for circuit breaker to keep on is 2s
(2) Each operation cycle includes: closing operation followed by opening operation (mechanical life), or connecting operation followed by breaking operation (electrical life)

 

 

4. Operating voltage and required power of circuit breaker shunt release, under-voltage release, operating mechanism, intelligent controller for energy release electromagnet

 

 

Note:
The reliable operating voltage range of shunt release is 70%~110%, and the release electromagnet and operating mechanism are 85%~110%.

 

 

5. Performance of circuit breaker under-voltage release

 

category

Under-voltage delay release

Under-voltage instantaneous release

Tripping time

Delay 1、3、5、10、20s

Instantaneous

Tripping voltage value

(37~70) %Ue

Can make the circuit breaker open

≤35%Ue

Circuit breaker cannot be closed

80%Ue~110%Ue

Circuit breaker can be closed reliably

The return time is≥95%

Circuit breaker does not open

 

Note:
The accuracy of the delay time of the under-voltage delay release is ±10%. When the voltage recovers to 85% Ue or above within 1/2 delay time, the circuit breaker will not be disconnected

 

 

6. Auxiliary contacts
◇Auxiliary contact form: four sets of change-over switches (default)
◇The rated working voltage of auxiliary contact of the circuit breaker, the rated control power is shown in Table 6.

 

Use category

Power supply type

Conventional heating current Ith(A)

Rated insulated voltage Ui(V)

Rated working voltage Ue(V)

Rated control power Pe

AC-15

AC

10

400

400、230

300VA

AC-13

DC

200、110

60W

 

 

7. Circuit breaker power consumption (ambient temperature +40℃)

 

Current

1600(G)

2000(G)

3200

4000

5000

Pole

3

4

3

4

3

4

3

4

3

Power consumption

300VA

400VA

360VA

420VA

900VA

1200VA

1225VA

1240VA

1225VA

 

 

8. Protection performance of intelligent controller

 

The intelligent controller has overcurrent protection features such as overload long delay inverse time limit, short circuit short delay inverse time limit, short circuit short delay time limit, short circuit instantaneous protection, etc. It also has single-phase grounding and leakage protection, load monitoring and other characteristics.
The protection current and time parameters of overcurrent protection feature are generally set by manufacturer according to user’s order requirements. The neutral line overcurrent protection of four-pole circuit breaker, the time parameter automatically tracks the phase line setting value in proportion. The proportional number is selected by user, that is, the N-pole rated current IN is 50%ln or 100%ln. If the user doesn’t have special requirements when ordering, then configure and adjust according to Table 8.

 

 

◇If user doesn’t have special requirements when ordering, the factory setting value of the intelligent trip controller is configured according to the following table:

 

Overload long delay

Current setting value Ir1

In

Delay time setting value t1

15S

Short circuit short delay

Current setting value Ir2

6Ir1

Delay time setting value t2

0.2S

Short-circuit instantaneous current setting value Ir3

12In (In:2000A), 10In (In:2000A)

Grounding fault

Current setting value Ir4

CAW6-1600(G)

CAW6-2000(G)

CAW6-3200(4000)

CAW6-5000

0.8In or 1200A (Choose the small one)

0.8In or 1200A (Choose the small one)

0.6In or 1600A (Choose the small one)

2000A

Delay time setting value t4

 

 

OFF

 

Load monitoring

Monitor current Ic1

 

 

In

 

Monitor current Ic2

 

 

In

 

 

 

The Mechanical Interlocking

 

The interlocking mechanism can interlock two or three circuit breakers for multi-channel power supply system. The mechanical interlocking device is installed on the right board of the circuit breaker. When it is installed vertically, the circuit breaker is interlocked with connecting rod; when it is installed horizontally or vertically, the circuit breaker is interlocked with steel cable, and the interlocking device is installed by the user. See Fig. 1 and Fig. 2 for the interlocking schematic diagram.

 

◇ Connecting rod interlocking three vertically installed circuit breakers

 

 

◇ Steel cable interlock two circuit breakers installed horizontally

 

 

 

Shape And Installation Dimensions

 

◇ CAW6-1600(200-1600A Fixed type)

 

 

Other Similar Products
Product Selection Form
We'd like to work with you!

Send us a message if you have any questions or request a quote.Our experts will give you a reply within 24 hours
and help youselect the right valve you want.

0086-13356132611

info@changangroup.com.cn

GET A QUOTE

Get in Touch

Captcha Code
×
We value your privacy
We use cookies to provide you with a better online experience, analyse and measure website usage, and assist in our marketing efforts.
Accept All