Introduction

Pro-MEC VCB

Vacuum Circuit Breakers

Pro-MEC VCB is user-friendly to give more convenience and safety by providing high speed interrupting time (3cycles), adopting the rapid auto-reclosing method, and having wide range of accessories.

  • Client

    Ceco Electronics Pvt Ltd

  • Services

    Industial Automation

  • Technologies

    Industrial automation

  • Dates

    10/03/2018

Description

General
  • High reliability of the operating mechanism

    • Separate design of the main circuit from the operating mechanism.

    • Adopt the toggle link method.

    • Improved the reliability of electric circuit.

    • Adopt the rapid auto-reclosing method as a standard option.
      (O-0.3sec.-CO-3min.-CO)

  • High interrupting performance

  • Make short of the interrupting time. (3cycles)

  • Increase the rated short-circuit withstand characteristics. (1sec. to 3sec.)

  • Reinforce the insulation in the conduct, by adopting the molded housing in each phase.

  • Built in the device making the contacts open first when draw in and out.

  • Adopt the tulip-shape connection between the cradle and the VCB.

  • Great operational safety

Ratings
  • Rated voltage: 7.2kV, 12kV, 17.5kV, 24kV

  • Rated normal current: 630A, 1250A, 2000A, 2500A

  • Rated short-time withstand current: Max. 40kA

Wide range of accessories (optional)
Applied standard: IEC 62271-100 (M2, E2(List1), C2 class)
Certification: KEMA, KERI
High reliability of the operating mechanism
  • Separate design of the main circuit from the operating mechanism.

  • Adopt the toggle link method.

  • Improved the reliability of electric circuit.

  • Adopt the rapid auto-reclosing method as a standard option. (O-0.3sec.-CO-3min.-CO)

High interrupting performance
  • Make short of the interrupting time. (3cycles)

  • Increase the rated short-circuit withstand characteristics. (1sec. to 3sec.)

Great operational safety
  • Reinforce the insulation in the conduct, by adopting the molded housing in each phase.

  • Built in the device making the contacts open first when draw in and out.

  • Adopt the tulip-shape connection between the cradle and the VCB.

  • 7.2kV Pro-MEC VCBs

Type

LVB-06=-20D

LVB-06=-25D

Rated voltage (kV)

7.2

7.2

Rated normal current (A)

630 1250 2000

630 1250 2000

Rated frequency (Hz)

50/60

50/60

Rated short-circuit breaking current (kA)

20

25

Rated short-circuit breaking capacity (MVA)

250

310

Rated short-time withstand current (kA/3sec)

20

25

Rated short-circuit making current (kAp)

52

65

Rated breaking time (Cycle)

3

3

Rated opening time (sec)

≤ 0.04

≤ 0.04

No-load closing time (sec)

≤ 0.06

≤ 0.06

Withstand
Voltage

Power frequency (kV/min)

20

20

Impulse (kV/1.2×50?)

60

60

Rated operating sequence

O-0.3s-CO-3min-CO

O-0.3s-CO-3min-CO

Type test

Electrical

M2 (10,000 times)

M2 (10,000 times)

Mechanical

E2 (List1)

E2 (List1)

Capacitive current switching Note 1)

C2

C2

Lifetime

Maintenance

Without maintenance (Time)

20000

20000

Maintenance (Time)

30000

30000

Electrical

Without maintenance (Time)

20000

20000

Maintenance (Time)

30000

30000

Auxiliary switch

4a4b, 10a10b

4a4b, 10a10b

 

Type

LVB-06=-32D

LVB-06=-40D

Rated voltage (kV)

7.2

7.2

Rated normal current (A)

1250 2000 3150

1250 2000 3150

Rated frequency (Hz)

50/60

50/60

Rated short-circuit breaking current (kA)

31.5

40

Rated short-circuit breaking capacity (MVA)

390

500

Rated short-time withstand current (kA/3sec)

31.5

40

Rated short-circuit making current (kAp)

82

104

Rated breaking time (Cycle)

3

3

Rated opening time (sec)

≤ 0.04

≤ 0.04

No-load closing time (sec)

≤ 0.06

≤ 0.06

Withstand
Voltage

Power frequency (kV/min)

20

20

 

 

 

 

 

 

 

 

 

Ceco Electronics Pvt Ltd

KOLKATA

Related