Leslie Fernandez, PE, LEED AP, JBA Consulting Engineers, Las Vegas
Articles
Paralleling generator systems—part two: switchgear
When designing generator systems, electrical engineers must ensure that the generators and the building electrical systems that they support are appropriate for the specific application. Whether providing standby power for health care facilities or prime power for processing plants, engineers must make decisions regarding generator sizing, load types, whether generators should be paralleled, fuel storage, switching scenarios, and many other criteria.
Paralleling generator systems
When designing generator systems, electrical engineers must ensure that generators and the building electrical systems that they support are appropriate for the specific application. Whether providing standby power for health care facilities or prime power for processing plants, engineers must make decisions regarding generator sizing, load types, whether generators should be paralleled, fuel storage, switching scenarios, and many other criteria.
Medium-voltage electrical system protection
Overcurrent protection is required for medium-voltage transformers, and connecting these transformers is common for medium-voltage distribution systems.
Medium-voltage fused switchgear example
This example illustrates the results from an MV fused switchgear feeding a pad-mounted or dry-type transformer.
Medium-voltage breaker switchgear example (oil-filled power transformer)
Below is an example of a MV breaker switchgear feeding a 12 MVA power transformer.
Medium-voltage breaker switchgear example (800 amp service)
Below is an example on an MV breaker switchgear feeding a loop distribution system.