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ac and dc filter capacitor banks for hvdc
application:
hvdc is used for long distance and large capacity power transmission.
power capacitors play an important part in hvdc power transmission for filtering and
compensation of reactive power.
1) standard
gb/t 20993-2007 dc filter capacitor for hvdc transmission system
gb/t 20994-2007 shunt capacitor and ac filter capacitor for hvdc transmission system
2) type number clarification of ac filter capacitor installation
w-outdoor
connection
protection
rated capacity of capacitor unit(kvar)
rated capacity(kvar)
rated voltage(kv)
tal-ac filter capacitor
3) type number clarification of dc filter capacitor installation
w-outdoor
connection
protection
rated capacitance of capacitor unit(μf)
rated capacity(kvar)
rated voltage(kv)
tdl-dc filter capacitor
connection:
a--connected in single star
b--connected in double star
protection of installation:
k--open delta voltage protection
c--differential voltage protection
q--differential current bridge protection
l--unbalance current protection of neutral point
installation environment:
w--outdoor; none--indoor