Electrical Calculations / Engineering

F
Curiosity for the day.... How/why did we settle on 60hz and not say 400hz?
2
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23
Views
632
petersonra
P
R
Watts from ohms one line
2 3 4
Replies
68
Views
2K
LarryFine
LarryFine
3
120/240V 3ph Delta Questions
Replies
11
Views
322
ggunn
G
D
Underground Ductbank Ampacity Calc - Very Limiting
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2
Views
129
Julius Right
Julius Right
E
[Help] Delta connection resistance computation
Replies
4
Views
117
Enbi
E
D
Derated Ampacity of Cable - Breaker Size
Replies
4
Views
138
GoldDigger
G
S
480V 3 phase to 120/240V single phase Xfmr
2 3 4
Replies
64
Views
2K
kwired
kwired
T
DC System Grounding
Replies
7
Views
257
tortuga
tortuga
W
Single Phase Transformer: How Does Secondary Load Change Magnetic Flux and Cause Primary Current?
Replies
4
Views
116
wwhitney
W
D
Ductbank ampacity calc - does length matter?
Replies
4
Views
181
GoldDigger
G
I
208v 3ph Receptacle calculated load
Replies
5
Views
181
retirede
R
J
multiple transformer primary protection question
Replies
1
Views
82
don_resqcapt19
don_resqcapt19
D
430.24 + 621.14 - elevator motor feeder sizing
Replies
3
Views
281
Do You Like Ham
D
R
UL508A related question
Replies
7
Views
183
paulbr
P
art
Conductor sizing for subpanels
Replies
4
Views
225
augie47
augie47
F
Generator CT's
Replies
6
Views
148
qcroanoke
qcroanoke
W
Transformer Basic Physics Question
Replies
0
Views
100
wwhitney
W
D
One Really huge underground ductbank?
Replies
10
Views
394
Tulsa Electrician
T
Tainted
Elevator step up transformer and disconnect location
Replies
13
Views
199
jim dungar
J
I
Fault path and protection
Replies
5
Views
142
jim dungar
J
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