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Electrical Calculations / Engineering
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M
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Motor Starter sizing
Muhammad Umer ansar
Jan 29, 2021
Replies
7
Views
3K
Feb 2, 2021
petersonra
P
Locked
Spot welder 'specific operation' criteria under 630.31(A)(2)?
tortuga
Jan 31, 2021
Replies
7
Views
1K
Feb 1, 2021
Bluegrass Boy
F
Locked
800Amps Circuit Breaker with (2) 500Kcmil Lugs
faresos
Jan 29, 2021
2
Replies
26
Views
3K
Feb 1, 2021
oldsparky52
O
Locked
90 deg rating for low voltage feeder
mshields
Feb 1, 2021
Replies
3
Views
376
Feb 1, 2021
tom baker
B
Locked
Standard or Optional load calculation
Bvernon40
Jan 29, 2021
Replies
4
Views
1K
Feb 1, 2021
Bvernon40
B
P
Locked
Grounding Electrode System in existing Building (NEC 250.50)
philly
Jan 27, 2021
Replies
4
Views
1K
Jan 31, 2021
tom baker
P
Locked
Sizing mast for overhead feeder
Pascal2
Jan 26, 2021
Replies
19
Views
3K
Jan 31, 2021
topgone
T
Z
Locked
Current limiting fuses to protect equipment
zbberry
Jan 26, 2021
2
Replies
30
Views
6K
Jan 30, 2021
petersonra
P
Locked
VD & xfmrs
ptonsparky
Jan 28, 2021
Replies
1
Views
414
Jan 29, 2021
electrofelon
F
Locked
Shielded vs Unshielded Medium Voltage Cable
FaradayFF
Jan 28, 2021
Replies
2
Views
2K
Jan 28, 2021
synchro
P
Locked
M-T-M Transfer Scheme with Line Side PT's only
philly
Jan 27, 2021
Replies
3
Views
638
Jan 28, 2021
ron
D
Locked
Lighting Fixture Layout
designer82
Jan 25, 2021
Replies
3
Views
586
Jan 28, 2021
retirede
R
C
Locked
Selective Coordination Realistic?
Cannotlogin
Jan 24, 2021
2
Replies
24
Views
3K
Jan 27, 2021
steve66
L
Locked
Selective coordination charts (from ABB)
lielec11
Jan 26, 2021
Replies
4
Views
591
Jan 26, 2021
lielec11
L
G
Locked
Primary & Secondary
Gene Vodovoz
Jan 26, 2021
Replies
4
Views
513
Jan 26, 2021
Gene Vodovoz
G
M
Locked
How VFD limits the starting current of the motor?
Muhammad Umer ansar
Jan 26, 2021
Replies
4
Views
2K
Jan 26, 2021
kwired
Locked
30kw PV Service Sizing
BackCountry
Jan 20, 2021
2
Replies
26
Views
2K
Jan 25, 2021
BackCountry
M
Locked
Speed Control using VFD
Muhammad Umer ansar
Jan 16, 2021
Replies
3
Views
645
Jan 25, 2021
Muhammad Umer ansar
M
M
Locked
Battery AH selection for a generator
Muhammad Umer ansar
Jan 20, 2021
Replies
5
Views
2K
Jan 25, 2021
Muhammad Umer ansar
M
Locked
Options in lieu of MLO service panelboards
electrofelon
Jan 21, 2021
Replies
16
Views
2K
Jan 24, 2021
don_resqcapt19
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