BAM(BFM)High Voltage Shunt Capacitor (High Series)
Code and implication
High voltage shunt power capacitor mainly use in 50Hzor 60Hz Ac
power system .improve power factor,reduce reactive power loss,mend
voltage quality,plenitude elaborate generate power 's equipment and
supply power equipment efficiency.it is national recommend save
- Altitude is not more than 1000m,ambient temperature:－40/B, B type
is most temperature is +45℃.
- Installation condition:there is no strong vibration,no harmful gas
and vapor, no conductive or explosive dust.
- Power capacitor will work in the good ventilate condition, it would
not permit to work in sealing and no ventilate condition.
- Power capacitor connection wire should take soft conductive
wire,the whole circuit connect well.
- Power capacitor is made up by case and core, the case is made up by
thin steel sheet weld,output porcelain was welded on the case
top,the case beside was welded hook,one side hood was put ground
- Power capacitor core is made up by some component and isolation
together.component is made by two piece aluminum foil centre clip
film paper compound media or full film media press wind and staved
.core's component connect by fixed strand and shunt way,so can
satisfied different voltage and capacity.
- The power capacitor with inside fuse ,every component have one
fuse,when any component was punctured,other component will well and
it can discharge,so it can make the fuse off in very short time.you
take off the faulty component,then the capacitor still work.
- Three phase power capacitor is star connection.
- Liquid medium was in power capacitor,immerse liquid fill up the
inside gap.and it take excellent electric physic property,it has
good solubility with other material.
Main Technical data
- Rated voltage: 6.3kV,6.6kV,6.6/√3kV,10.5kV,11kV,11/√3KV.
12KV,12/√3KV,19kV and so on.
- Rated capacity: 30~334kvar other voltage and capacity will make
according to the client demanding.
- Capacity tolerance: -5%~+10%.
- Power loss tanδ:film and paper compound medium tanδ<0. 08%,full
film medium tanδ <0. 05%.
- Withstand voltage:between power capacitor,every pole can afford AC
2. 15 times voltage or direct 4. 3 times rated voltage ,it will
over 10 s,there is no puncture and flash.
- Dielectric level: 6KV 30kv 10kv 42kv testing AC,it will over 1 min
there is no puncture and flash.
- Discharge property:the power capacitor with inside put discharge
register.it can reduce the left voltage from√2Un peak value to
below 75V within 10 minute when the power is off.
- Max permit over voltage: 1. 1 times rated voltage the most permit
voltage would not more than 8hours with in 24 hours, 1. 15 time
rated voltage,he most permit over voltage would not not more than
30 minute within 24 hours 1. 2time rated voltage would not more
than 5 minute within 24 hours, 1. 3 time rated voltage would not
more 1 minute within 24 hours.
- Max permit over current:over current is not more than 3 time rated
current,it can work,if over current transition,you should consider
over voltage capacity tolerance and harmonic affection would not
more than 1.43 times rated current.
- Confirm standard: GB/T 11024.1-2009 or IEC60871-1: 2005.
- Power capacitor rated voltage choosing should consider net circuit
voltage,and consider power capacitor input can increase the
voltage,so choose the rated capacitorRWF0. 75-voltage less than 5%
of net circuit voltage;when power capacitor circuit have strand
reactor,capacitor terminal voltage will increase according to
relative reactor radio.so when you choose the power capacitor rated
voltage you should calculate the reactor ratio.
- Power capacitor is channel which harmonic is low resister.when the
harmonic enter the power capacitor,it make power capacitor to over
current and over voltage. In addition power capacitor will make
harmonic enlarge then will happen resonance ,it will effect
electric net safe and it will shorten the power capacitor life,so
there is big harmonic condition,power capacitor will connect with
reactor to use together
- When power capacitor cut off,the surge current is hundred times of
rated current.so choose power capacitor switch,you should choose no
puncture switch.it can restraint cut surge,and connect reactor
which has restraint.
- When the capacitor which has discharge resister inside cut off the
power,it can reduce the rated voltage from peak to below75V within
10 minute.if you need cut off the power the rated voltage from peak
to below 50V,please notice it in the order.
- The capacitor was used in circuit compensate, 150-200kvar is
suitable in any place,please notice the power capacitor and
transformer would not mix install.it not permit use the same line
fuse cut out avoiding no full phase wok which it make magnetic
resonance to create over voltage and over current to damage the
power capacitor and transformer.
- Choosing protect operate over voltage surge arrester:power
capacitor special surge arrester,and it should put the centre of
the power capacitor pole.
- Choosing power capacitor special fuse cut out,rated current is 1.
42~1. 5 time rated current which is better
- When power capacitor was connect with high voltage
electromotor,leading up the capacitor terminal voltage is high than
rated voltage in order to protect the electromotor self exciting
after cut off the power.so capacitor rated current is less than
neuter current 90% of electromotor,when the electromotor take Y/A
connection way,it is not permit which put the capacitor on the
electromotor directly,you should take special connection way.
- When the power capacitor was use in more altitude 1000 or capacitor
using in wet and hot place,you should notice when you order it.
- Special type or special requirement capacitor,you should notice
when you order it.