Products and Services >Medium Voltage Products >Circuit Breakers & Switches >Withdrawable Circuit Breakers >17.5 kV Vacuum Circuit Breakers >Vector18-S (Encapsulated Poles,Spring Mechanism driven)

Vector18-S (Encapsulated Poles,Spring Mechanism driven)

The VECTOR18-S is a cassette-type (withdrawable) 17.5kV Vacuum Circuit Breaker designed to be mounted within LKE's VMC18 metal-clad switchgear. The Vector18-S VCB features the following:
  • Phase-center distance of 185mm
  • Encapsulated poles with vacuum interrupters embedded within the resin material of the pole housing.
  • Nominal current ratings of up to 2000A
  • Maximum breaking capacity of up to 50kA
  • Conventional spring-mechanism driven
vector18
vector182

Cross-section view of the Vector18-S showing the Vacuum interrupters embedded within the epoxy housing.

VectorM32

Vector18-S32-2000 with rated current level of 2000A.

The VECTOR18-S has the following parameters:

Electrical Characteristics Unit VECTOR18-S25 VECTOR18-S31.5 VECTOR18-S50
Rated Voltage kV 18 18 18
Rated current A 630~2000 630~2000 630~2000
Short-time(1min) power frequecy withstand voltage Between phases, from phase to earth, and vacuum interrupter kV 50 50 50
Lightning Impulse test voltage kV 110 110 110
Rated maximum short-circuit breaking capacity kA 25 31.5 50
Rated short-time current (kA X sec) kA/s 25/4 31.5/4 50/4
Rated peak withstand current kA 50 50 65
Rated single capacitor bank breaking current A 630 630 630
Rated back-to-back capacitor bank breaking current A 400 400 400