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Medium-voltage switchgear

VacClad-W 38 kV arc-resistant metal-clad medium-voltage switchgear

VacClad-W arc-resistant switchgear is a metal-clad, medium-voltage switchgear designed to safely contain and redirect the thermal energy and blast from an arc fault should they occur, regardless of the originating location of the arc.  The 38 kV VacClad-W arc-resistant switchgear has a Type 2 rating with an arc flash boundary of zero offering enhanced safety.

VOLTAGE CLASS
Up to 38 kV
CONTINUOUS CURRENT
up to 3000 A
INTERRUPT RATING
up to 40 kAIC

Core features

  • Certified arc-resistant Type 2 per IEEE C37.20.7
  • Compartmentalized, metal-clad design conforming to IEEE C37.20.2 and CSA C22.2 No. 31-14
  • Horizontal drawout circuit breakers and VT/CPT drawers
  • Provided with mechanical interlocks for proper operating sequence
  • Insulated bus conductors and connections throughout
  • Protection and metering as per customer’s specifications
  • Rated for indoor applications
  • CSA or CSA(US)  available for most ratings

Arc flash. Contained.

An arc flash explosion can release toxic fumes, thermal heat, sound waves and pressure. Arc-resistant equipment is designed to safely contain and redirect arc energy, no matter where the arc originated.

Enhance worker safety

Remotely employ motorized racking to safely move breakers and auxiliary drawers from outside the arc flash boundary.  Learn more about MR2

Safeguard against switching transients

Ohmic voltage sensing (OVS) increases reliability over traditional  core and coil voltage transformers. Watch this brief video for an overview of the benefits of including an OVS system to protect against damaging transients.  

Specifications

Ratings

RATED MAXIMUM VOLTAGE
38 kV
CONTINUOUS CURRENT
1200 A  to 2500 A, 3000 A fan cooled
INTERRUPT RATING
Up to 40 kA rms symmetrical
BASIC IMPULSE LEVEL (BIL)
27 kV class-170 kV peak

Standards

ANSI / IEEE STANDARD C37.20.2 & C37.20.7 (Type 2)
CSA
C22.2 No. 31-14
THIRD PARTY APPROVAL/RECOGNITION CSA or CSA(US)  available for most ratings
SEISMIC QUALIFICATION IBC, CBC

Enclosure

ACCESS
Front & rear required
INSULATING MEDIUM Air
BUS INSULATION Epoxy (fluidized bed)
BUS SUPPORTS Glass polyester
ENCLOSURE TYPE Indoor
INDOOR SECTION DIMENSIONS (TYPICAL) 42” w x 130” d x 140” h

Devices

SWITCHING DEVICE Vacuum circuit breaker
DEVICE MOUNTING Draw-out

Application data

HEAT LOSS Heat loss data
WEIGHTS
Weights table
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