ABB HD4/R, Installation And Operating Instructions Manual

16

5.7.5  General specifications of fixed circuit-breakers  

with rh lateral operating mechanisms for ABB UniSec switchgear (12 - 17.5 - 24 kV)

Circuit-breaker

HD4/R-SEC 12

HD4/R-SEC 17

HD4/R-SEC 24

Standards

IEC 62271-100

•

•

•

CEI EN 62271-100  

(dossier 7642)

•

•

•

Rated voltage

Ur [kV]

12

17.5

24

Rated insulation voltage

Us [kV]

12

17.5

24

Withstand voltage at 50 Hz

Ud (1 min) [kV]

28

38

50

Impulse withstand voltage

Up [kV]

75

95

125

Rated frequency

fr [Hz]

50-60

50-60

50-60

Rated thermal current (40°C)

Ir [A]

630

800

630

800

630

Rated duty breaking capacity
(symmetrical rated short-circuit current)

Isc [kA]

12.5

12.5

12.5

–

12.5

16

16

16

16

16

20

20

  20

(5)

  20

(5)

20

25

25

–

–

–

Short-time withstand current (3 s)

Ik [kA]

12.5

12.5

12.5

–

12.5

16

16

16

16

16

  20

(3)

20

  20

(5)

  20

(5)

20

  25

(4)

  25

(4)

–

–

–

Making capacity

Ip [kA]

31.5

31.5

31.5

–

31.5

40

40

40

40

40

50

50

50

50

50

63

63

–

–

–

Sequence of operations

[O - 0.3s - CO - 15s - CO]

•

•

•

Opening time

[ms]

45

45

45

Arcing time

[ms]

10...15

10...15

10...15

Total break-time

[ms]

55…60

55…60

55…60

Closing time

[ms]

80

80

80

Overall dimensions
(maximum)

H [mm]

740

740

740

L [mm]

315

315

315

D [mm]

1049

1049

1049

Pole center-distance [mm]

230

230

230

Weight

(1)

[kg]

103

103

103

Absolute  gas  pressure  (nominal  duty  value)                          

 [kPa]

380

380

380

Application  of  PR521  protection  device                       

In [A]

application not available

Application of REF 601 protection device

•

(2)

•

(2)

•

(2)

Standardized dimensions table

1VCD003536

1VCD003536

1VCD003536

Wiring diagram

with / without REF 601

1VCD400119

1VCD400119

1VCD400119

Operating temperature

[°C]

- 5 ... + 40

- 5 ... + 40

- 5 ... + 40

Tropicalization

IEC: 60068-2-30, 60721-2-1

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•

•

Electromagnetic compatibility

IEC 62271-1

•

•

•

(1)

  increase the indicated weight by 20 kg for circuit-breakers with REF 601 devices and 3 current sensors (15 kg only with 2 current sensors)  

(2)

  the REF601 device and the current sensors are available on request. The rated current of the REF 601 must be set in the relay and must be compatible with the rated current of the 

circuit-breaker. The rated current that can be set with CEI 0-16 is 80 A or 250 A. With the CEI 0-16 version of REF 601, the circuit-breaker is always supplied with 3 phase sensors 
(Rogowsky coils) on the circuit-breaker itself, one 40/1 A closed-core toroidal TA and a -MU undervoltage release for relay-controlled opening    

(3)

  at 12 and 17.5 kV and at 630 A rated current, the rated short-time withstand current is 20 kA for 1 second 

(4)

  at 12, the rated short-time withstand current is 25 kA for 2 seconds   

(5)

  at 17.5 kV, the breaking capacity is 21 kA and the rated short-time withstand current is 21 kA for 3 seconds 

H

L

D