SERIES TIPO VK / HVK

Identification

Rated Values

Related Required Capabilities

ANSI Line No.

Type-Form of Breaker

Nominal rms Voltage Class (kV)

Nominal 3-phase Class (MVA)

Voltage

Insulation Level

Current

Rated Inter-rupting Time (Cycles)

Rated Per-Missable Tripping Delay, Y (Seconds)

Rated Maximum rms Voltage Divided by K (kV)

Current Values

Rated Maximum rms Voltage (kV)(2)*

Rated Voltage Range Factor, K (3)*

Rated Withstand Test Voltage

Con-tinuous rms Current Rating at 60Hz (A)

Short-circuit rm*s Current Rating (at Rated Max. kV) (kA)(4)*

Maximum Symmetrical Interrupting Capability (5)*

3 Sec Short-time Current Carrying Capability

Closing and Latching Capability 1.6K Times Rated Short-circuit rms Current(kA)

Low Frequency rms Voltage (kV)

Crest Impulse Voltage (kV)

K Times Rated Short-circuit rms Current

(kA)

(kA)

2

VK-6M32A

4.16

250

4.76

1.24

19

60

1200

29

3

2

3.85

36

36

58

3

VK-6P32A

4.16

250

4.76

1.24

19

60

2000

29

3

2

3.85

36

36

58

(1)*

VK-6M40A

4.16

350

4.76

1.0

19

60

1200

41

3

2

4.76

41

41

66

(1)*

VK-6P40A

4.16

350

4.76

1.0

19

60

2000

41

3

2

4.76

41

41

66

4

VK-6M50

4.16

350

4.76

1.19

19

60

1200

41

3

2

4.0

49

49

78

5

VK-6P50

4.16

350

4.76

1.19

19

60

2000

41

3

2

4.0

49

49

78

6

VK-6Q50

4.16

350

4.76

1.19

19

60

3000

41

3

2

4.0

49

49

78

7

VK-8M40A

7.2

500

8.25

1.25

36

95

1200

33

3

2

6.6

41

41

66

8

VK-8P40A

7.2

500

8.25

1.25

36

95

2000

33

3

2

6.6

41

41

66

(1)*

VK-8Q40

7.2

500

8.25

1.25

36

95

3000

33

3

2

6.6

41

41

66

9

VK-10M25A2

13.8

500

15

1.30

36

95

1200

18

3

2

11.5

23

23

37

10

VK-10P25A2

13.8

500

15

1.30

36

95

2000

18

3

2

11.5

23

23

37

11

VK-10M40A

13.8

750

15

1.30

36

95

1200

28

3

2

11.5

36

36

58

12 

VK-10P40A

13.8

750

15

1.30

36

95

2000

28

3

2

11.5

36

36

58

(1)*

VK-10Q40

13.8

750

15

1.30

36

95

3000

28

3

2

11.5

36

36

58

(1)*

VK-10M40A

13.8

1000

15

1.0

36

95

1200

37

3

2

15

37

37

59

(1)*

VK-10P40A

13.8

1000

15

1.0

36

95

2000

37

3

2

15

37

37

59

(1)*

VK-10Q40

13.8

1000

15

1.0

36

95

3000

37

3

2

15

37

37

59

13

VK-10M50

13.8

1000

15

1.30

36

95

1200

37

3

2

11.5

48

48

77

14

VK-10P50

13.8

1000

15

1.30

36

95

2000

37

3

2

11.5

48

48

77

15

VK-10Q50

13.8

1000

15

1.30

36

95

3000

37

3

2

11.5

48

48

77

(1)*

VK-20J13

23

500

25.8

1

60

125

600

12

3

2

25.8

12

12

19

(1)*

VY-20M25A

23

1000

25.8

1.0

60

125

1200

20.8

3

2

25.8

20.8

20.8

33.3

(1)*

VY-20P25A

23

1000

25.8

1.0

60

125

2000

20.8

3

2

25.8

20.8

20.8

33.3

(1)*

VY-30M25A

34.5

1500

38

1.35

80

150

1200

21

3

2

28

28.4

28.4

45.5

(1)*

VY-30P25A

34.5

1500

38

1.35

80

150

2000

21

3

2

28

28.4

28.4

45.5

*Numbers in parentheses refer to the notes below.

(1) ANSI C37.06 does not define these ratings.

(2) Maximum voltage for which the breaker is designed and the upper limit for operation.

(3) K is the ratio of rated maximum voltage to the lower limit of the range of operating voltage in which the required symmetrical and asymmetrical interrupting capabilities vary in inverse proportion to the operating voltage.

(4) To obtain the required symmetrical interrupting capability of a circuit breaker at an operating voltage between 1/K times rated maximum voltage and rated maximum voltage, the following formula shall be used. Required Symmetrical Interrupting Capability= Rated Short-circuit Current X (Rated Max. Voltage)/(Operating Voltage)

(5) Current values in this column are not to be exceeded even for operating voltages between the rated maximum voltage and 1/K times rated maximum voltage, follow (4) above.