Toshiba CV-10HB, CV-10HBL Instruction Manual

6F9G0154

INSTRUCTION MANUAL

HIGH－VOLTAGE

VACUUM CONTACTORS

CAPACITOR APPLICATION

TYPE:CV-10HB 12（13.8）kV－400A－5kA

TYPE:CV-10HBL 12（13.8）kV－400A－5kA

TOSHIBA CORPORATION

© TOSHIBA Corporation 2001-2009
All Rights Reserved.

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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

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 : Less than 1000m
－Ambient temperature : －5℃ min. to +40℃ max.

Its average over a period of 24h
does not exceed +35℃

－Relative humidity : 45% min. to 85% max.
－Vibbration : 20Hz －9.8m/s

2

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.

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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

Sea breeze

Dust, iron-dust etc.
is very more place.
Place where suffer the
sea breeze.

Reduction of ventilation
Setting of ventilation for
sea breeze.
Frequent inspection.

High humidity

Place where very more
snow and ice.
More humidity.
Place where near the
cooling tower.
Place where cause changing
the temperature suddenly.

Setting the space heater.
Setting the ventilation.
Prevention of flooding
into the cable pit.

Corrosion gas

Corrosion gas which come
into the airport, chemical
Industry and water cleaning.
(EX.)
SO

2

, Cl2 ,NO2

Protection from corrosion
gas .
Anti-gas treatment.
Examination of changing
of the insulation material.

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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.
If the 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.

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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 5.5mm

2

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.

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６．RATING

DANGER : Do not exceed the ratings specified on the contactor.

Table 3 Ratings

Type－ form CV－10HB CV－10HBL
Operating mechanism Non-latched Latched
Rated operation voltage (kV)

12 （13.8）*
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

Operations/hour 300 120 Rated duties
On load factor 40%

Rated making capacity (kA)

3.2(C－10s×100times)

Rated breaking capacity (kA)

2.56(CO－30s×25times)

Short-circuit making and breaking current
(kA)

5

Duties

O－3min－CO－3min－CO

Withstand overload current (kA-s)

8.0－1sec , 1.92－30sec
Mechanical operation (million) 0.25
Electrical operation (million) 0.1

Closing voltage

100－240VAC
100－220VDC

100－240VAC
100－250VDC

Rated supply voltage
(Standard)

Tripping voltage

－ 100－110VDC

Contact arrangement

4NO－2NC 2NO－1NC

Auxiliary switches

Life (million) 0.1
Closing

6～7

Operating current (A)
(at 100V)

Holding/Tripping

0.6～0.7 3～4

* ：13.8kV (maximum) for capacitor switching.
The rated making/breaking capacity has been confirmed at 12kV.

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