Introduction
Square D™ brand SureSeT medium voltage metal-clad indoor switchgear offers Square D™ brand EvoPacT draw-out vacuum circuit breakers in two-high construction for 5/15 kV power distribution. A typical SureSeT switchgear assembly is shown in the figure Typical SureSeT Metal-Clad Switchgear Assemblies. This instruction bulletin contains overall description and instructions for receiving, handling, storing, installing, operating, and maintaining SureSeT switchgear.
The EvoPacT circuit breaker is shown in the figures Front View of Typical EvoPacT Circuit Breaker and Rear View of Typical EvoPacT Circuit Breaker. Refer to Schneider Electric document number JYT3013100, EvoPacT MV Vacuum Circuit Breaker for detailed information.
The SureSeT switchgear contains these design features:
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One-high and two-high construction, with circuit breakers on the top and/or bottom.
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The switchgear assembly consists of individually-grounded, compartmentalized, steel structures.
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Each compartment has doors, barriers, covers, and/or removable access panels/plates to isolate the separate working functions.
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All circuit breakers, instrument and control power transformers, relays, meters, and other components are factory-assembled, wired, and tested as an assembly.
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The installer normally makes only the external control, ground, and power connections at the terminals provided, and reconnects the wiring and bus bars at the shipping splits.
Each assembly is custom-designed, with standard structures and bus configurations also arranged according to customer specifications. The structures are then combined with the circuit breaker and other components necessary for the required protection scheme, metering, and controls.
Complete customer order drawings are provided by Schneider Electric for each SureSeT switchgear order. The drawings include floor plans and elevations, one-line diagrams, bills of material, control schematics, and wiring diagrams.
The environment in which this equipment was designed to be stored, installed, and operated is specified throughout this document, particularly in the section Product Technical Datasheet.
Typical SureSeT Metal-Clad Switchgear Assemblies
| A |
Control power transformer (CPT) drawer
|
F |
Racking mechanism
|
| B |
Voltage transformer (VT) drawer
|
G |
Circuit breaker compartment (without circuit breaker)
|
| C |
Low voltage instrumentation compartment
|
H |
Low voltage instrumentation compartment
|
| D |
Circuit breaker compartment (with EvoPacT circuit breaker)
|
I |
Circuit breaker compartment
(without circuit breaker)
|
| E |
EvoPacT vacuum circuit breaker,withdrawable
|
Front View of Typical EvoPacT Circuit Breaker
Rear View of Typical EvoPacT Circuit Breaker
Referenced User Guides
For each device or system referenced in this user guide, there is a corresponding user guide available. Each user guide describes the safety information, features, receiving/handling/storage instructions, operation, use, and maintenance procedures of the corresponding MV device.