Vd4 Type High Voltage Indoor Fixed Vacuum Circuit Breaker (VCB) Use
in cabientProduct DescriptionVd4 Indoor Vacuum Circuit
BreakerDescriptionVD4 series medium voltage vacuum circuit-breakers
with lateral operating mechanism feature the separate pole
construction technique.VD4 vacuum circuit breakers have been
designed for indoor use and air insulated switchboards.Their
switching capacity is sufficient to handle any conditions arising
from switching of equipment and system components under normal
operating and fault conditions, particularly short-circuits, within
the parameters of their technical data. The vacuum circuit-breakers
of type iVD4, designed in column form, can be supplied both as
individual units for fixed installation and mounted on chassis.
Vacuum circuit-breakers are characterized by their simple and
robust construction. They have a long life expectancy. There
is no adverse effect on the vacuum, even from frequent switching of
operating and short-circuit currents. AdvantagesVacuum
circuit-breakers have particular advantages for use in networks
where there is a high switching frequency in the working
current range and/ or where a certain number of short- circuit
breaking operations are expected. iVD4 vacuum circuit- breakers are
suitable for auto reclosing and have exceptionally high operating
reliability and long life. The circuit- breakers are notable for
their compact design, small dimensions together with high capacity.
The operating mechanisms have a low maintenance requirement
and the interrupters are maintenance- free throughout their service
lives. They are well suited to all load breaking operations which
occur in practice, and in particular:Short-circuit
currents;Overhead lines under load and, no-load conditions;Cables
under load and no-load conditions;Transformers under load and
no-load conditions;Generators under load and no-load
conditions;Ripple control system;Capacitor banks(also parallel
switching) and Motors with starting currents above 600A;
Fields of applicationBelow is the list of SM6 range units used in
MV/LV transformer substations and industrial distribution
substations:Cable control and protectionOverhead control and
protectionTransformers and distribution substationsMotor and
transformer control and protectionGenerator control and
protectionCapacitor bank control and protection Diagrammatic
sketchCircuit-breaker operating mechanismA) Open/closed auxiliary
contactsB) Geared motor for closing spring chargingC) Built-in
closing spring charging leverD) Mechanical signalling device for
circuit-breaker open/closedE) Mechanical operation counterF)
Plug-socket connectors of electrical accessories in the truckG)
Signalling device for closing springs charged/dischargedH) Service
releasesI) Closing pushbuttonL) Opening pushbuttonM) Operating
mechanism locking electromagnetN) Additional shunt opening
releaseO) Transient contactP) Contacts for signalling spring
charged/discharged Main characteristicsRated
voltage1)kV12243640.5Rated frequencyHz50 -6050 - 6050
- 6050 - 60Rated normal
currentA630...40002)630.25630...31503)630...31503)Rated
short-circuit breaking current
(symm.)kA16.31.540506316.31.516.416.4Rated short-circuit making
currentkA40.81001254)15840.840.140.1Rated duration of
short-circuit4)s3333334Fixed- / withdrawable Version •
/ •• / •• / •• / •• / •• / ••
/ •Max. overall dimensions(fixed
Version)mmpHabc150-275205-310450-700424461-5996)210-275310570-7004245996)210-275310600-7504596088)275310750459677210-275310570-700424631-661280/3605)3288957)/1000555/6867)1575280/3605)3288957)/1000555/6867)1575Weightkg73-10594-180147-260265100-110290-365290-365Embedded
Pole ••• •••Assembled
Pole • •• 1) Test voltage
according DIN VDE 0670, part 1000, list 22) 4000 A with forced
cooling3) 3150 A with forced cooling in AP technology4) Higher
values on request5) 360 mm for fixed, 280 mm for withdrawable
Version6) Circuit-breaker with heat sink 616 mm7) Withdrawable
Version8) Circuit-breaker with heat sink 634 mm/* January 22, 2024
19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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