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Electrical Calculations / Engineering
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Curiosity for the day.... How/why did we settle on 60hz and not say 400hz?
fastline
Aug 3, 2022
2
Replies
23
Views
632
Aug 5, 2022
petersonra
P
R
Watts from ohms one line
Rjv0858
Jun 22, 2022
2
3
4
Replies
68
Views
2K
Aug 5, 2022
LarryFine
3
120/240V 3ph Delta Questions
32Lateralus
Aug 2, 2022
Replies
11
Views
322
Aug 5, 2022
ggunn
G
D
Underground Ductbank Ampacity Calc - Very Limiting
designer82
Aug 3, 2022
Replies
2
Views
129
Aug 5, 2022
Julius Right
E
[Help] Delta connection resistance computation
Enbi
Aug 4, 2022
Replies
4
Views
117
Aug 4, 2022
Enbi
E
D
Derated Ampacity of Cable - Breaker Size
designer82
Aug 4, 2022
Replies
4
Views
138
Aug 4, 2022
GoldDigger
G
S
480V 3 phase to 120/240V single phase Xfmr
smarteng
Jul 20, 2022
2
3
4
Replies
64
Views
2K
Aug 4, 2022
kwired
T
DC System Grounding
timm333
Aug 1, 2022
Replies
7
Views
257
Aug 2, 2022
tortuga
W
Single Phase Transformer: How Does Secondary Load Change Magnetic Flux and Cause Primary Current?
wwhitney
Aug 2, 2022
Replies
4
Views
116
Aug 2, 2022
wwhitney
W
D
Ductbank ampacity calc - does length matter?
designer82
Jul 26, 2022
Replies
4
Views
181
Aug 2, 2022
GoldDigger
G
I
208v 3ph Receptacle calculated load
InspectorPatches
Jul 25, 2022
Replies
5
Views
181
Aug 2, 2022
retirede
R
J
multiple transformer primary protection question
justagirl
Aug 2, 2022
Replies
1
Views
82
Aug 2, 2022
don_resqcapt19
D
430.24 + 621.14 - elevator motor feeder sizing
Do You Like Ham
Jan 11, 2022
Replies
3
Views
281
Aug 1, 2022
Do You Like Ham
D
R
UL508A related question
Rmore
Jul 28, 2022
Replies
7
Views
183
Aug 1, 2022
paulbr
P
Conductor sizing for subpanels
art
Jul 31, 2022
Replies
4
Views
225
Aug 1, 2022
augie47
F
Generator CT's
frofro19
Jul 31, 2022
Replies
6
Views
148
Jul 31, 2022
qcroanoke
W
Transformer Basic Physics Question
wwhitney
Jul 31, 2022
Replies
0
Views
100
Jul 31, 2022
wwhitney
W
D
One Really huge underground ductbank?
designer82
Jul 21, 2022
Replies
10
Views
394
Jul 31, 2022
Tulsa Electrician
T
Elevator step up transformer and disconnect location
Tainted
Jul 30, 2022
Replies
13
Views
199
Jul 30, 2022
jim dungar
J
I
Fault path and protection
Isaiah
Jul 30, 2022
Replies
5
Views
142
Jul 30, 2022
jim dungar
J
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