Type PSV Automatic Dead-Front Pad-Mounted Switchgear
Type PSV Automatic Dead-Front Pad-Mounted Switchgear
Highly Configurable & SCADA Ready

Protection Assurance
Circuit Breaker protected way feature a “Protection Assurance” Feature. In the event of power loss, all vacuum circuit breakers (VCBs) can be made to open and VCBs do not reclose until protection is restored. The protective relays are voltage transformer powered.
Standard PSV Configuration
Circuit Diagrams with Compartment Numbers
PSV Vacuum Circuit Breaker
Federal Pacific’s Dependable Construction
The Federal Pacific PSV enclosure design provides increased security of protection and switch components from environmental concerns and enhanced isolation of medium-voltage circuits to limit exposure of operating personnel. Federal Pacific PSV pad-mounts feature a low-profile, heavy-gauge enclosure with a cross-kinked roof to eliminate the potential for standing water.
Stainless-steel hinges and hinge pins combined with the padlockable, self-resetting, three-point, auto-latch door security system assures durability while controlling access to the interior.
PSV Features
Typical Features of PSV Vacuum Circuit Breaker Protected Ways

Typical Features of PSV Vacuum Circuit Breaker Protected Ways
- 15kV Dead-Front Pad-Mounted Switchgear
- Proven Auto-jet® load-break air switching.
- Auto-Jet® Manual Load-Break Air Switches meet IEEE C37.74 requirements including 3-time fault-closing on switches and fuse mountings.
- Eleven-gauge pickled-and-oiled steel, all welded enclosure construction. Stainless steel is available.
- Meets IEEE C57.12.28 cabinet security and enclosure finish requirements.
- Ventilation louvers are not required in the cable compartments but may be specified.
- With power fuses, NEMA Class GPO-3 non-hygroscopic fiberglass reinforced polyester barriers block access to the internal bus when the fuse panels are opened.
Typical Features of PSV Vacuum Circuit Breaker Protected Ways
- 600 amp bushings or 200 amp bushing wells with studs accommodate elbows for load ways.
- Mar-resistant viewing window of voltage transformers and fuses can be removed for service.
- Mar-resistant viewing window over Auto-jet® load break air switch for positive open closed indication.
- Parking stands for IEEE 386 elbows assemblies adjacent to each bushing (or bushing well).
- Rail mounted relay class current transformers for easy removal and adjustment for pulling cable.
- Slam latch stainless steel assembly on each door.
- Separate low voltage lockable control compartment is completely isolated from medium voltage compartment

Phase and compartment identification labels
600 amp bushings or 200 amp bushing wells with stud accommodate elbows for load ways.
Parking stands for IEEE 386 elbows assemblies adjacent to each bushing (or bushing well).
Three-point latches secure door against vandals, yet easy to unlatch for operating personnel. No fast moving parts, no need to kick door closed, no binding when
pad is uneven.
Stainless steel wind brace keeps door open.
Mar resistant viewing window over voltage transformers and fuses removed for service.
Rail mounted relay class current transformers for easy removal and adjustment for pulling cable.
Grounding rod of 3/8" copper extends full width of door opening.