Toshiba CV-10HA User manual

TOSHIBA 6F9G0133
INSTRUCTION MANUAL
HIGH-VOLTAGE
VACUUM CONTACTORS
MOTOR& TRANSFORMER APPLICATION
TYPE:CV-10HA 12/15kV-400A-5/4kA
TYPE:CV-1 OHAL 12/15kV- 400A- 5/4kA
May, 2001 I REV. 4 I
TOSHIBA CORPORATION
SOCIAL INFRASTRUCTURE SYSTEM COMPANY
©TOSHIBA Corporation 2001
All Rights Reserved.
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TD SHIBA 6F9G0133
CONTENTS
1. GENERAL DESCRIPTION···················· 2
2. PRECAUTIONS IN SPECIAL APPLICATION····· 3
3. RECEIVING AND UNPACKING················ 4
4. STORAGE AND HANDLING··················· 4
5. INSTALLATION··························· 5
6. RATING································· 6
7. OUTLINE DRAWING························ 7
8. STRUCTURE······························ 8
9. OPE RAT I ON······························ 9
10. TRIAL OPERATION······················ ··13
11. INSPECTION AND MAINTENANCE·············14
12. CRITERIA FOR DURABILITY··············· ·18
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TOSHIBA
Read this manual carefully to fully understand the operation.
And keep for maintenance.
WARNING: Never remodel or disassemble the equipment nor mount
nonstandard components.
This equipment shall only be used inside a metal enclosure (grounded)
in other establishments than domestic , or those that are connected to
the public power source system.
1. GENERAL DESCRIPTION
(1) Ambient condition
6F9G0133
The type CV vacuum contactor is manufactured in accordance with IEC 60470(2000).
The vacuum contactor should be used in the following conditions.
Table 1
Normal service condition
-Altitude
-Ambient temperature
-Relative humidity
Less than 1
OOOm
-S°C min. to +40°C max.
Its average over a period of 24h
does not exceed
+35°C
45% min. to 85% max.
-Vibbration · 20Hz -9.8m/s2 or less
CAUTION :
Do not use in condition other than those specified
above , please consult .
(2) Locative condition
The location where the contactor is to be installed should be free from dust.
Corrosive gas and moisture.
When it
is be used in a chemical plant or in outdoor panels,
take necessary precautions against corrosion,
water seepage and condensation.
See page 2.
2
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TOSHIBA 6F9G0133
2. PRECAUTIONS IN SPECIAL APPLICATION (outdoor cubicle etc.)
In application, check the follow items, please carry out the maintenance
frequently. or perform the countermeasure.
(Visual inspection: once a month, regular inspection: once a year)
Table 2 Precaution in special application
Special condition Instance Caution items
Contamination Dust, iron-dust etc. Reduction
of ventilation
is very more place. Setting
of ventilation for
Sea breeze Place where suffer the sea breeze.
sea breeze. Frequent inspection.
High humidity Place where very more Setting the space heater.
snow and ice. Setting the ventilation.
More humidity. Prevention of flooding
Place where near the into the cable pit.
cooling tower.
Place where cause changing
the temperature suddenly.
Corrosion gas Corrosion gas which come Protection from corrosion
into the airport, chemical
gas.
Industry and water cleaning. Anti-gas treatment.
(EX.) Examination
of changing
S02 , Cl2 ,N02
of the insulation material.
3
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3. RECEIVING AND UNPACKING
WARNING: If any parts are damaged or missing.
Do not install that has been damaged.
Make the following checks after unpacking :
(1) Check if there is any damage, foreign matter trapped , or water seepage
into the contactor.
(2) Check the nameplate to see
if the specifications on the plate are correct.
(3) Check the contact wear gauge and control cable.
(4) Check the tripping rod (Latched type).
4. STORAGE AND HANDLING
When the contactor is to be stored over a long period , the storage area
should be dry and dust free area.
Ifthe contactor is left outdoors or in adverse conditions , corrosion
from gas , rust or insulation deterioration may result.
CAUTION :
In handling , do not throw or drop contactor.
The contactor may break.
4 -
6F9G0133
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TOSHIBA
5. INSTALLATION
When installing , protect from dust. Particularly when the contactor
is installed while the building
is under construction , shield it from
cement dust and other foreign matter.
The following precautions should be taken.
(1) The mounting surface must be horizontal (level : less than +1mm).
When the mounting surface
is not horizontal , adjust with spacers.
(2) There are four mounting holes.
Use M10 bolts to securely mount the contactor.
(3)
In wiring the main circuit terminals , ground terminals and control
circuit , wires should be given sufficient length to
be flexible.
The ground wires should be more than 5.5mm2
in cross section.
(4)
Do not mount the contactor with its front inclined downward.
This may result
in malfunction.
(5) Do not touch the vacuum interrupter surface with soiled hands.
(6) When it
is applied to a capacitor load , be sure to used a space heater
to keep humidity low.
CAUTION : Do not install on energize contactor that has been bad condition.
5 -
6F9G0133
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TOSHIBA 6F9G0133
6. RATING
DANGER: Do not exceed the ratings specified on the contactor.
Table 3 Ratings
Type- form
CV-10HA
CV-10HAL
Operating mechanism Non-latched Latched
Rated operation voltage (kV) 12/15
Rated insulation level (kV) AC.28 , Imp.75
Rated operational current (A) 400
Thermal current (A) 450
Rated frequency (Hz) 50/60
Rated short-time withstand current (A-s)
5000-1
Rated peak withstand current (A) 12500
Rated duties Operations/hour 300 120
On load factor 40%
Rated making capacity (kA)
4(C-10sX 100times)
Rated breaking capacity (kA) 3.2(
CO- 30s x 25times)
Short-circuit making and breaking current 5/4
(kA)
Duties
0-3min-C0-3min-CO
Withstand overload current (kA-s)
8.0-1 sec , 2.4- 30sec
Mechanical operation (million) 0.25
Electrical operation (million)
0.1
Rated supply voltage Closing voltage
100-240VAC
100-240VAC
(Standard)
100-220VDC
100-250VDC
Tripping voltage -
100-110VDC
Auxiliary switches Contact arranoement
4N0-2NC
2N0-1NC
Life (million) 0.1
Operating current (A) Closing
6-- 7
(at 100V) Holdina/Triooina
0.6--0.7
3--4
6
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......
Ir>
co
11'>1 -
c:-
500
OPENING
FOR
MANUAL
TRIP
(LATCHED TYPE)
RECOMMEND
PARTITION
DISTANCE
24
~
0 0
146
193
526 ';>I le= 235
TYPE CV- 1 0 HA ( L)
(HORIZONTAL MAIN TERMINALS)
Fig.1 OUTLINE DRAWING(mm)
IE 16 :+ I i~ 63 5tI
~ ~ 1"
I I I MAIN
'1 1' '1 TERMINALS
DIA. l 3-6HOLES
l l i
~
......
0
c
-i
r
z
m
I~
~
z
G)
I
-I
D
en
:c
-
m
J:ll
en
'Tl
co
C)
0
...a.
w
w
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co
MAIN
TERMINALS
VACUUM
INTERRUPTERS
ARMATURE
INSULATION BARRIER
ATCH MECHANISM
(LATCH TYPE)
FRONT(WITHOUT COVER)
Fig. 2 STRUCTURE OF CV-10
[r::::J]
CONTROL CONNECTOR METAL COVER
FRONT
INDICATOR
COUNTER
(OPTION)
OPENING FOR
MANUAL TRIP
CX>
en
-I
::0
c
(')
-I
c
::0
m
-I
0
en
::c
-
Ill
,..
O>
,,
co
C)
c
~
w
w
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9. OPERATION
The drive unit for the electromagnet is installed in the bottom frame.
Molded and wired on the printed circuit.
The closing circuit can be operated using either
in AC or DC by the drive unit.
The optional latch trip circuit uses DC as standard.
6F9G0133
When a latched contactor is operated using AC power, it is recommended that a
Capacitor trip device be used.
The standard operating voltage is as follows:
Non-latched type(normally energized) :
100-240 V AC /100-220V DC
Latched type :
100- 240V AC /100- 250V DC closing voltage
: 100-11 OV DC tripping voltage
Di ode
(Latched type)
TIMER
52CC
2 U-----+-----' - - - - - - - - - -
OSCILLATION
POWER
SWITCHING
Fig.3 Internal Configuration of Drive Unit
CAUTION : Do not touch the drive unit without trouble.
9 -
VOLTAGE
DETECT
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TOSHIBA 6F9G0133
(1) CONNECTION OF CONTROL POWER SUPPLY
Fig.4 and Fig.5 show the internal connections of the normally energized type
latched type respectively.
According to there figures, connection should be made of the control power
supply and open I close command contact (power relay contact).
Tl
r----
L~c:Dc
Tl 1
Tl
L--~~.:_,,,
Tl 1
TS TS T7 TS T9 Tl 0
--------------
------,
AC/DC I
I
!C ~
g f$
AUS
I
I
52CC CLOSING COIL OF CONTACTOR
Du
DRIVE UNIT
I
11
9 7 I
I
11-- I
I
I 1 2 1 0 B I
I
_J
I
I
AUS
AUX I LI ARY SWITCH
1 ......... 6
CONTACTOR TERMINAL NUMBERS
T6 TB TIO
Tl TS T7 T9
I
I
I
--------------
_ _J
Tll TIS T17 T19
T16
TlB T20
T15T1ST17T1S
Tl 9 T20
CONTROL CONNECTOR
Fig.4 Internal connection of the normally energized type.
DC/AC
TS TS T7 TS
AUS
,,--,-0--9-0--<7 >--
~----
I L1 __ 2-o.-1-ao -B-0----0--
__ _j
TIS T16 T17 TIS T13
T3
,,..
----.,
I
I
I
_____ _j
12
~
52CC
Du
AUS
1 ...... 6
52TC
D
Tl T3
Tl 1
Tl 3
~
f$
CLOSING COIL OF CONTACTOR
DRIVE UNIT
AUXILIARY SWITCH
CONT ACTOR TERMINAL NUMBERS
TRIPPING COIL OF CONTACTOR
DI ODE
T6 TB
TS T7
9 1 0
Tl S Tl 7
Tl 6
Tl B
CONTROL CONNECTOR
Fig.5 Internal connection of latched type.
1 0
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TOSHIBA 6F9G0133
(2) STANDARD OPERATION CIRCUIT
> >
C> C>
I I
C> C>
C> C>
(.) (.)
<( 0
Shown below are the vacuum contactor and its auxiliary circuits (control and
monitoring).
Fig.6 represents the standard operation circuit of the normally energized type
and Fig.7 the latched type.
Wiring should be done according to these circuit diagrams.
OFF
I
E
~14
REMOTE
E
SWITCH
TS T6 T7 TB T9
Tl 0
El'l°N
l~,
A A A
VMC
---- -,
*l
AUS
I
4
J-r
l l I
cos
~ ~~~~~LOCK
i
I I
5 l 2 l 0
_J
8 4 i
STOP
Du
i
INTERLOCK i
6 I
I
2 I
I
T Tl 1
v v v
115T16117 118 119 T20
Fig.6 Standard operation circuit of normally energized type.
NOTE:e Be sure to use quickly AC auxiliary relay contact NO for self-holding.
Ifthe self- holding circuit is formed by using the auxiliary contact No
of the vacuum contactor , welding of the main contact may result when
the start button
is pushed incompletely(refer to *1 in Fig.6).
1 1
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>
0
"'
I
0
0
u
0
>
0
...
N
I
0
0
-
u
<
6F9G0133
T16 T17 T18 I T13
(a) Shunt trip
REMOTE SWITCH
I
E OFF \ 2E-RY
T6 T7 TS
AUS
9 7
CTD
Tl 6 Tl 7 Tl 8 Tl 3
(b) Capacitor trip
Fig.7 Standard operation circuit
of latched type.
NOTE : e Electrical trip-free circuit must be prepared outside the contactor.
e A stable DC power source such as battery is recommended for the
control circuit.
If DC power source is not available, employ a AC closing and a
Capacitor trip.
e Be sure to use the control connector between No.3 and No.13
(auxiliary contact) for trip circuit.
Connect the control connector between No.5 and No.15
(auxiliary contact) for control relay circuit.
1 2
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TOSHIBA 6F9G0133
10. Trial operation
Warning : Make sure main power
is OFF.
After mounting and wiring
of the vacuum contactor, make the following inspections.
1) Check for any loose connections.
2) Check for any wiring errors. Perform this test with only the control circuit energized.
confirm that the operation is correct. For the latched type contactor, check that the
latch correctly engages and trips when the close/trip signals are applied. Also,
manually trip the contactor using trip lever to verify proper operation.
1 3 -
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TOSHIBA 6F9G0133
11. INSPECTION AND MAINTENANCE
To maintain the function and performance of the vacuum contactor for a long period
of time, the following inspections and maintenance procedures are recommended.
The intervals between inspections may vary depending on the conditions of use and
the environment under which the contactor
is used. The initial inspection should be
carried out within one year
of the start of equipment operation, and the succeeding
check intervals should be determined according to the result
of the initial inspection.
See Section 2 for use under special environment as in outdoor cubicles.
(1) Patrol Inspection(every 1- 6 months)
With the cubicle energized,
visu~lly check from out side the cubicle according to
the check list
of Table 4,5.
WARNING: When opening the door ofthe cubicle, do not come close
to danger area.
Table 4 Patrol inspection items
Check item What to check
Abnormal noise Check if corona discharges or operation
magnets are not producing noise.
Abnormal smell Check if corona discharges or overheat are
not producing abnormal smell.
Table 5 Patrol inspection items(cont.)
Check item What to check
Abnormal discoloration Is there not any discoloration due to
overheat?
Damage Is there not any crack, break or dislocation
of insulating material or operation tools?
Open/close indication Is the OPEN/CLOSE indication (lamp)
normal?
1 4 -
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TD SHIBA
(2) Periodical Inspection/Detailed Inspection(every 1-2 years or every
20,000 operations)
The facility should be removed out
of service and perform inspection
According to the instruction given
in Table 6.
WARNING: Contact with energized components can cause severe injury
or death.
6F9G0133
Turn-off and lock out primary and control circuit before servicing.
1 5 -
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TOSHIBA 6F9G0133
Table 6 Periodical inspection and detailed inspection
Location
What to inspect Decision criteria What to do
Contactor as Appearance Abnormal appearance Check by sight. Replace broken
a whole damage Parts.
Insulating Check if moisture or
Material dust adheres to the
insulator. Check by sight. Clean.
Under dusty environments,
frequent inspection
should be done.
Operating Sliding parts Check for wear, loose or
devices seized parts.
Spring Rust, deformation,
discoloration, or damage.
Electromagnets Discoloration, rust, Check bye sight. Clean parts and
wear,
or loose mounting. If necessary, remove foreign
Check for scores and check correct matters.
Latch
mechanism wear operation. Pour oil
in
Also check loose Adequate
fastenings. amount.
Closing coil, Check for discoloration
trip coil and burned parts.
Fastenings Check for loose bolts or
nuts.
Primary Terminal, Discoloration
of terminal Check by sight. Retighten.
circuit movable and coupling conductor, check the If necessary,
conductor loose fastenings. tightness. investigate the
cause and replace
parts.
Interrupter Vacuum Check contact wear and See Table
7. Replace vacuum
Contact wear wipe. Interrupter.
Vacuum Check moisture and dust Check by sight. Clean.
container adhering to the surface.
Vacuum level Check vacuum level by Apply AC17kV Iffound abnormal,
withstand voltage test. for 1minutes. inform the maker.
1 6
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TOSHIBA 6F9G0133
Location What to inspect Decision criteria What to do
Control wiring Check for discoloration -Retighten.
equipment and tightness.
Auxiliary switch Amount of dust attached. Check by sight. Replace
if damage
is excessive.
Drive unit Overheat, discoloration. Check by sight. Replace if abnormal
Insulation Main circuit Measure insulation More than
SOM Q When the insulation
resistance resistance between resistance is
phases, between below the standard
electrodes and between level, investigate the
circuits and ground. cause and, if
(Measurement is taken necessary, replace
by 1 OOOV megger.) parts.
Operation Measure insulation More than 1MQ
circuit resistance between
circuits and ground.
(Measurement is taken
by
SOOV meqqer.)
Dielectric Main circuit Measure dielectric AC 1.SE for Iffound abnormal
strength strength between phases, 10 minutes. inform the maker.
between electrodes and
between circuits and
ground.
Open/close operation Perform open/close
If found abnormal,
operation by electric check and repair.
operation test to confirm If necessary,
the correct operation. replace faulty parts.
Remarks: For extraordinary (unscheduled) inspections , pick up check items from the above
table.
1 7
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TOSHIBA 6F9G0133
Table 7 Gap/wipe standard value (mm;
Parts name Gap Wipe Allowable wear
Vacuum Normally
energized
7.0-7.5
More than 3.0 2.0
interrupter type
Latch type
7.0-7.5
More than 2.8 1.8
12. CRITERIA FOR DURABILITY
(1) Electrical service life
The electrical service life of the vacuum interrupter is defined by the electrode wear the
number of open/close operations (mechanical life).
To determine the electrode wear, measure the gap between the lever and washer
(dimension A)
in a closed start , as shown in Figure8. With the vacuum interrupter
closed, if a contact wear gauge or a 1.0mm thickness gauge cannot be inserted ,
this means the end of life is reached.
For the components listed below, replacement or detailed inspection and cleaning
are recommended after the indicated number ofoperations.
Table 8 Electrical service life
Parts. name Electrical service life
Vacuum interrupter 100,000 operations or 15 years
Auxiliary switch 100,000 operations or 10 years
Drive unit 100,000 operations or 10 years
Movable conductor 100,000 operations
or 15 years
Hence, parts should be replaced around electrical service life operations.
CONTACT SPRING
LEVER
WASHER (MB)
Fig.8 Parts to be inspected
1 8 -
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6F9G0133
(2) Mechanical service life
The normally energized type has the mechanical service life of 0.25 million operations ,
and the latch type 0.25 million operations. (The mechanical service life
of the vacuum
interrupter
is 100,000 operations.)
For the components listed below , replacement or detailed inspection and cleaning are
recommended after the indicated number
of operations.
Table 9
Parts name
Vacuum interru ter
Auxilia switch
Movable conductor
Latch mechanism
Closin Itri coil
Movable core
Stationary core
Recommended replacement parts
No. ofo eration for
re lacement
100,000 o erations or 15 ears
100,000 o erations or 10 ears
100,000 o erations or 15 ears
250,000 o erations or 10 ears
250,000 o erations
Detailed inspection and cleaning
eve 100,000 o erations.
Detailed inspection and cleaning
eve 100,000 o erations.
1 9
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