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AIR CIRCUIT BREAKERS

www.

sigmaelektrik

.com

18

ACB

SOME TROUBLES AND SOLUTIONS 

FACTORY SETTING VALUES

The intelligent controller would be configured as follows, If no special demands was put forward  when ordering:

Overload long-delay

Current setting Ir1

In

Delay time setting t1

15S

Short-circuit short-delay

Current setting Ir2

8Ir1

Delay time setting t1

0.4S

12In

Earthed errors

Current setting Ir4

SFA/SDA-2000

SFA/SDA-3200, 4000

SFA/SDA-6300

0.8In or 1200A 

(choose smaller-

value)

0.6In or 1600A 

(choose smaller-

value)

2000A

Delay time setting t4

OFF

Load monitoring

Monitoring setting C1

In

Monitoring setting ILC2

In

Fault description

Reasons analysis

Maintenance method

Tripping of circuit breaker

Over load tripping (IL indicator flashing)

1. Check the breaking current value and operation 

time of intelligent release.

2. Analyze the load and electric network, exclude the 

overload if it happens.

3. Match the actual operating current with long time-

delay current setting value.

4. Press the reset button to reclose the breaker

Circuit breaker

1. Check the breaking current value and operation 

time of intelligent release.

2. Exclude the short circuit fault if it happens

3. Check the setting value of intelligent release

4. Check the normal state of breaker

5. Press the reset button to reclose the breaker

Earthing fault tripping (IG indicator flashing)

1. Check the breaking current value and acting time of 

intelligent release.

2. Exclude the earthing fault if that happens.

3. Match the fault current setting value with the actual 

protection.

4. Press the reset button to reclose the breaker.

Under-voltage release fault:

1. Rated working voltage is less than 70%Ue

2. Fault of control unit

1.Check the power is on or not

2.Check the power voltage of under-voltage release, it 

shouldn't be less than 85%Ue.

3.Replace the control unit of under-voltage release

Mechanical interlock acting

Check the working state of two circuit breakers fixed 

with mechanical interlock

Summary of Contents for SDA 2000

Page 1: ...AIR CIRCUT BREAKERS INSTRUCTION MANUAL ISO 2001 2008 ...

Page 2: ...rik com 2 ACB CONTENTS GENERAL STRUCTURE MAIN TECHNICAL PARAMETERS CHARACTERISTIC OF THE INTELLIGENT CONTROLLER ACCESSORIS DIMENSIONS SECONDARY WIRING DIAGRAM SETTING VALUE BEFORE LEAVING FACTORY TROUBLES AND SOLUTIONS 3 3 3 4 5 5 6 7 7 ...

Page 3: ...ion Ambient temperature 5 40 and average temperature in 24 hours below 35 except for special orders Comply with EN 60947 2 and VDE 0660 Environment conditions For Operation and Installation Altitude should be less than 2000m Relative humidity not exceeding 50 at the maximum ambient temperature higher humidity would be permitted but the lowest average temperature in a month not exceeding 35 C durin...

Page 4: ...eries Draw out Air Circuit Breaker breakdown showing return button handle for manual energy storage closing button energy storage energy release indicating closed broken showing face device for passing in or out breaking button handle and its holder position indicator SDA 6300 SDA 4000 SDA 3200 SDA 2000 ...

Page 5: ...Terminals of secondary circuit 2 Drawer base 3 Safety separator 4 Handle 5 Terminals of secondary circuit 6 Auxiliary switch 7 Under voltage release 8 Shunt release 9 Closing electromagnet 10 Operation mechanism 11 Motor drive charging device 12 Intelligent controller 13 Cover ...

Page 6: ...ing is possible with the panel door closed Disconnected position The main circuit and auxiliary circuit are disconnected Safety seperator is closed Unit door Auxiliary circuit is ON Back of the draw out socker Safety seperator Main circuit is ON Unit door Auxiliary circuit is ON Back of the draw out socker Safety seperator Main circuit is ON Unit door Auxiliary circuit is ON Back of the draw out s...

Page 7: ...ntaneous current setting alarm simultaneously 20 Key for inspecting fault 21 Key for detecting wearing of contacts 22 Load supervision signal 2 alarm simultaneously 23 Load supervision signal 1 alarm simultaneously 24 Setting s decrease progressively 25 Setting s increase progressively 26 Supply socket DC24V for test power 27 Memory key 28 Memory indicator 29 Non release test key 30 Release test k...

Page 8: ...000 Rated Impulse Withstand Voltage Uimp kV 8 8 8 Rated Short circuit Break ing Capacity Rated Ultimate Short circuit Breaking Capacity Icu kA 690 V AC 50 65 65 415 V AC 80 100 100 Rated Service Short circuit Breaking Capacity Ics kA 690 V AC 40 50 50 415 V AC 50 65 65 Category A B A B A B Pollution degree 3 3 3 Electrical life ope 415 V 1500 1000 500 Mechanical life ope 10000 5000 5000 Tripping U...

Page 9: ...1 15lr3 Trip Short circuit instantaneous protection Current ratings Range Ir1 Error Current Actions Time Time Error 0 4 1 In 10 1 05Ir1 2h Non trip 1 30Ir1 1h trip 1 51 Ir1 setting time 15 30 60 120 240 480 10 2 0Ir1 8 4 16 9 33 7 67 5 135 270 10 Overload long time delay protection Phase N Overload and Over Current Characteristic 100 or 50 Applicable to 3p N or 4P 30 40 50 60 70 80 100 2 3 4 5 6 8...

Page 10: ...10 0 9Ir2 Non tripping 1 10Ir2 Tripping Setting time Tg 120 240 480 15 Returnable time 67 5 135 270 15 Single phase earth fault protection technical data 1000 500 100 50 20 10 5 2 1 0 5 0 2 0 1 0 05 0 02 0 01 Ir4 0 2 0 8 In xln t s 05 06 08 1 2 3 4 5 6 8 1 2 3 4 5 6 8 10 20 30 0 4s 0 3s 0 2s 0 1s 0 4s 0 3s 0 2s 0 1s Earth fault protection characteristic curve ...

Page 11: ... mechanism ACB can be closed The closing spring is charged by electrical motor automatically For breaker s remote operation Closing Coil and Shunt Trip coil are required Automatic recharging of closing spring makes fast operations of the O C O cycles Rated control power voltage Us V AC400 Action voltage V 0 35 0 7 Us Reliable making voltage V 0 85 1 1 Us Reliable non making voltage V 0 35Us Power ...

Page 12: ...ntional free air thermal current Ith A 10 Rated control capacity 300VA It can realize the interlock of two horizontal or vertical installed three poles drawout type or fixed type circuit breaker a If need bend the cable make sure the radian is more than 120O b Chack and make sure enough lubricating oil of the cable c The maximal distance between two interlock circuit breaker is 2m 2m max R 120 mm ...

Page 13: ...35 4P 340 3P Lever Connect Vertical Connect 435 4P 340 3P Cabinit door 32 Chart 8 Fixed CB mount Outer Dimensions SFA SDA 2000 2000 4 Chart 8 Fixed CB mount Outer Dimensions SFA SDA 2000 2000 4 493 4P 378 3P Chart 9 Fixed CB mount Outer Dimensions SFA SDA 3200 3200 4 515 4P 400 3P Cabinit door Lever Connect Vertical Connect 515 4P 400 3P 32 SFA 3200 SFA 2000 ...

Page 14: ...75 3P Lever Connect Vertical Connect 360 4P 265 3P Chart 10 Drawer Type mount Outer Dimensions SFA SDA 2000 2000 4 CB Cabinit door 461 Connect 507 Disconnect 20 510 4P 395 3P 550 4P 435 3P Cabinit door Lever Connect Vertical Connect 400 4P 325 3P 461 Connect 507 Disconnect c Disconnect d Disconnect Chart 11 Drawer Type CB mount Outer Dimensions SFA SDA 3200 3200 4 ...

Page 15: ... 504 Connect 550 Disconnect 569 Connect 615 Disconnect Note Panel Centre to CB Centr Left Right Dimension is 189 3P 2465 5 4P e 928 4P 813 3P 952 4P 837 3P 703 3P 818 4P 6300A Lever Connect Vertical Connect Chart 12 Drawer Type CB mount Outer Dimensions SFA SDA 4000 Cabinit door 494 Connect 540 Disconnect 559 Connect 605 Disconnect Note Panel Centre to CB Center Left Right Dimension 57 5 ...

Page 16: ... Distances Rated Current A Busbar dimension mm Number of busbar pcs Rated Current A Busbar dimension mm Number of busbar pcs 630 40X5 2 2000 100X5 3 800 50X5 2 2500 100X5 4 1000 60X5 2 3200 120X10 3 1250 80X5 2 4000 120X10 4 1600 100X5 2 6300 120X10 6 Type a mm b mm c mm 2000 306 345 0 3200 306 405 0 4000 306 405 0 6300 306 405 20 ...

Page 17: ...s showed by the chart DC V or V U U input the out of DC power module should be respectively connect to the Seco nd two fan Block wiring terminal x Shunt buton User owned X closing electromagnet DF Aux iliary contact SB voltage release or under voltage delay time release SB undervoltage Q Under button User own ed M charging motor F shunt release O NO contact A AC V SB switch on button XT Terminal S...

Page 18: ...rload if it happens 3 Match the actual operating current with long time delay current setting value 4 Press the reset button to reclose the breaker Circuit breaker 1 Check the breaking current value and operation time of intelligent release 2 Exclude the short circuit fault if it happens 3 Check the setting value of intelligent release 4 Check the normal state of breaker 5 Press the reset button t...

Page 19: ... fault happened 2 Check the Power voltage of shunt release is less than 70 Us or not 3 Replace shunt release Circuit breaker can t store energy Manual storage can t be realized Mechanical fault with the energy storage device Motor storage can t be realized 1 Power voltage of motor energy stored device is less than 85 Us 2 There is mechanical fault with energy storage device 1 Power voltage of moto...

Page 20: ...Yunus Emre Mah Yenidoğan Yolu Cad No 30 A 34792 Sancaktepe Istanbul TURKEY Phone 90 216 429 72 01 pbx Fax 90 216 484 41 01 sigma sigmaelektrik com www sigmaelektrik com Do not risk your safety ...

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