General description
Introduction
Siemens type SDV6 distribution circuit
breaker is precision built equipment
designed to function efficiently under
normal operating conditions. It is designed
and manufactured to operate within the
parameters established in ANSI/IEEE C37
and NEMA standards for distribution circuit
breakers. Performance requirements of
these standards have been met or
exceeded by these designs. Specific
standards which apply include: .
ANSI/IEEE C37.04-1999 rating structure
for ac high-voltage circuit breakers
ANSI/IEEE C37.06-2009 preferred
ratings ac high-voltage circuit breakers
ANSI/IEEE C37.09-1999 test procedure
for ac high-voltage circuit breakers
NEMA SG4-2009 ac high-voltage circuit
breakers.
The instructions included in this instruction
manual are provided to aid you in
obtaining longer and more economical
service from your Siemens type SDV6
distribution circuit breaker. For proper
installation and operation, this information
should be distributed to your operators
and engineers.
By carefully following these instructions,
difficulties should be avoided. However,
these instructions are not intended to
cover all details of variations that may be
encountered in connection with the
installation, operation and maintenance of
this equipment.
Should additional information be desired,
including replacement instruction
manuals, contact your local Siemens
representative.
Scope
These instructions cover the installation,
operation and maintenance of a Siemens
type SDV6 distribution circuit breaker using
vacuum interrupters. The equipment
designs described in this instruction
manual consists fo free-standing outdoor
distribution circuit breakers for application
up to 38.0 kV. A typical type SDV6
distribution circuit breaker is shown in
Figure 1: Typical type SDV6 distribution
circuit breaker. All diagrams, descriptions
and instructions apply to all of the above
classes and designs unless noted
otherwise.
Standard construction details of the
operating mechanism of the circuit breaker
are detailed in the type 3AH circuit breaker
operator instruction manual E50001-F710-
A251-X-76US.
Special mechanical and electrical devices,
furnished in accordance with purchase
order requirements, are covered by
supplementary instructions submitted with
this instruction manual.
Figure 1: Typical type SDV6 distribution circuit breaker
6
