what is advantage in open delta connection?
Question Submitted By :: Electrical-Engineering
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The very useful advantage of open delta connection is to
detect ground fault at any bus or line of a system. usually
open delta connection transformer is used in potential
transformer to detect ground fault as a 3rd core of PT. Iqbal Ahmad
with use of open delta connection maintenance of
transformers is possible . If load on two transformers
increase than we can install another transformer and close
the delta in future . Swapnil
An open delta connection can supply power at 53.3% of its
rated value. Niranajn
open Delta will supply 57% if its rated value and give the
apportunity to increase the ratio by adding the missing leg
to become a complete delta. Sam Khanji
In three phase system it use for Directional Earth Fault
relay voltage element. Derekdejs64
By the open delta connection of PT we can monitor the
neutral shifting of the system as well as it can be use in
the genetating end substation for the maintenance of the
transformer in the time of low load demand. Subhankar Nath
There are two biggest advantages:
1) In an unearthed system like capacitor banks, it is possible to detect ground faults though earth path is not available.
2) In case of bulk power transmission where transformer banks are used, their advantage is that if one leg is out for maintenance/replacement than also approx. 57% power can be transmitted. Imtiaz Khan
in unearth sysytem open delta connection is used for
detecting of earth fault & single phasing of equipment.
plz, anybody give another ans......
then welcome. Dnyaneshwar
An open delta connected when full power is not needed.
an open delta can continue to supply power,when one of the
transformer, out of 3,is disabled or removed for
maintenance ,even thiugh with reduced capacity ie 57 %. Prr