Download DB Cell-checking Device Nuclear Services / Engineering Services Background Description

Nuclear Services / Engineering Services
DB Cell-checking Device
Background
Description
Westinghouse has provided DB circuit breakers
to many nuclear plants, and has provided breaker
support and maintenance. Less maintenance has
been performed on plant switchgear, however,
and over time cell degradation can occur.
Westinghouse has designed the DB cell-checking device
to help provide proper breaker-to-cell component
engagement, main and secondary contact alignment,
and breaker-to-cell rail interface of Class 1E nuclear
safety-related and non-Class 1E circuit breakers.
Benefits
Use of the new cell-checking device quickly provides
evidence of whether the cell structure needs
maintenance or possible parts replacement.
DB-50 cell checking device installed in cell
DB-50 cell checking device
Westinghouse Electric Company
1000 Westinghouse Drive
Cranberry Township, PA 16066
www.westinghousenuclear.com
May 2011
NS-ES-0205
©2014 Westinghouse Electric Company LLC. All Rights Reserved
Experience
• Westinghouse has provided cell structure
replacement parts as listed in DB Air Circuit
Breaker and Cell Parts Listing.
• Westinghouse, with its extensive nuclear power
experience and access to the original Westinghouse
nuclear plant design documents, has built new DB
circuit breakers for several power plant operations.
• Westinghouse retains the exclusive rights to the
original design and qualification documentation
associated with Westinghouse-designed plants.
August 2014
NS-ES-0205