Electrical Calculations / Engineering

mbrooke
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Help with two generators
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19
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3K
mbrooke
mbrooke
H
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Custom automatic transfer switching enclosure advice needed
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5
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1K
HertzGood85
H
Jon456
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208/120V 4-Wire Feeders. How do I decide if neutral is current carrying?
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4
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1K
LarryFine
LarryFine
T
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Input Wattage for mix and match ballast & lamps
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4
Views
956
gar
G
I
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Arc Flash question
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3
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920
Isaiah
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Jon456
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How to factor high-wattage appliances into load calcs & branch circuit design?
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10
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2K
romex jockey
romex jockey
F
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Modifying Existing MCC
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4
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3K
FaradayFF
F
D
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Buck and boost for load increased portion only
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7
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1K
dannyrzk
D
E
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Fuse or Breaker to protect Heat Pump
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9
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3K
topgone
T
M
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Feeder Size
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2
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2K
infinity
infinity
J
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NEC 2017, How is Table 220.88 Optional Method applied to a load calculation
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1
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1K
david luchini
david luchini
C
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Relay coordination
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2
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1K
topgone
T
ptonsparky
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Harmonics and PF
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7
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2K
Besoeker3
Besoeker3
M
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duct bank
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4
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1K
ron
ron
S
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Customer Has Been Dropping a Phase
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12
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2K
mivey
mivey
E
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Does 208V 100A 3ph input approx. equal 480V 30A 3ph output for a step-up transformer?
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10
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2K
Besoeker3
Besoeker3
M
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Engineer vs EC
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10
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2K
tortuga
tortuga
Johnhall30
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Meter/ Load center Tap conductors
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6
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2K
Johnhall30
Johnhall30
O
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A really bad day: marine 138KV cables damaged
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3
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1K
Open Neutral
O
ptonsparky
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Primary lost phase
Replies
3
Views
941
synchro
synchro
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