Toshiba VK-6M40A - User Manual

lvlav.
31, 2012 9:lSAlVl
TOSHIBA
No
1530
P,
2
Document; GF0776{'I-B
INSTRUGTION$
IilSTALLATION
.
OPEFATION
.
MAINTENANCE
Type
VK
&
HVK
Series
Vacuum
Circuit
Breakers 5-15kV
APPLICABLE TYPE FORMS
(1200A) (20004)
(30004)
VK.6M32A VK.6P32A
I.IVK.6M32A
HVK-6P32A
VK.6M4OA VK.BP4OA
HVK-6M4OA HVK'6P4OA
VK"8M4OA
VK-8P4OA VK-8O40
HVK-8M4OA HVK-8P4OA
,VK.1OM25A2
VK-1OF25A2
HVK-lOM25A2
HVK-I0P26A2
VK-10M40A VK-10P40A VK-10040
HVK-1OM4OA HVK.IOP4OA
vK-6M50
vK-6P50 VK-6050
vK-10M50 VK-10P50 VK-10()50
NOTES:
t) The
designation of
H
before
vK
(i€.
HVKI
dsnot€s that the circuit braaker unit
was assembled
in the USA using domestic
and
foreigri
components.
All
'
relErgnces to modal numbere in thie manual will
be by the numbets following
the VK- and
HVK-.
2l Thi! manuel waB writtan
lor tha Toshiba typ€ form circuit
brsakers listed on
thi$
page
used in coniunction
with Toshiba
cells.
For
circuit
brsek6rs
utilized in
the convereion
of
othsr
equipment, a supplemental
i struction manu8l Should
be obEain6d
from lhe conversion manufacturer.
lssued 2/95.
Supemedee GF077401-A Deted 12194.

Summary

INSTRUCTIONS

SAFETY

SAFETY SIGNS AND WARNINGS

Emphasizes following safety signs and highlights hazardous conditions.

QUALIFIED OPERATORS

INSTALLATION

LIFTING FOR INSTALLATION

MOVING CIRCUIT BREAKER IN CELL

PRE-ENERGIZATION CHECK

GENERAL PREPARATION

ELECTRICAL CHECKS

OPERATION

MANUAL OPERATION

Procedures for manually charging, closing, and tripping the breaker.

ELECTRICAL OPERATION

Process of charging, closing, and tripping the breaker electrically.

CONTROL CIRCUIT OPERATION

MECHANISM OPERATION

MAINTENANCE

MAINTENANCE PROGRAM AND RECORD

Establishing a maintenance program and keeping records of all work.

SERVICING EQUIPMENT SAFETY

Critical safety precautions to follow before and during equipment servicing.

INSPECTION AND MAINTENANCE TYPES

Details various types of inspections from basic to complete overhaul.

INSPECTION AND MAINTENANCE INTERVALS

Provides frequency schedules for inspections based on usage and time.

TROUBLESHOOTING GUIDELINES

CIRCUIT BREAKER FAILS TO CLOSE

Identifies common problems and solutions when the breaker does not close.

CIRCUIT BREAKER DOES NOT TRIP

Identifies common problems and solutions when the breaker fails to trip.

REPLACEMENT OF PARTS

AUXILIARY SWITCH REPLACEMENT

Step-by-step guide for replacing the auxiliary switch.

COIL REPLACEMENT

Detailed steps for replacing closing and trip coils.

CONTROL CIRCUIT BOARD REPLACEMENT

CONTROL CIRCUIT BOARD FUSE REPLACEMENT

CONVERSIONS

DEFINITION AND SAFETY PROCEDURES

VMD MONITORING DEVICE

Toshiba VK-6M40A Specifications