Electrical Calculations / Engineering

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central inverter feeding remote heads or individual Em. lighting units?
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6
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2K
Open Neutral
O
mbrooke
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Operating challenge associated with of 34,500 volts?
2
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31
Views
5K
mbrooke
mbrooke
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Voltage Drop - MVOLT LED Drivers
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5
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3K
winnie
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Shujinko
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Muting of Public Address System or Sound System during fire alarm
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3
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10K
hbiss
hbiss
U
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Question regarding intersystem bonding with cable co.
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2
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926
roger
roger
U
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Monitoring power issues
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1
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684
Jraef
Jraef
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Does a motor overload relay open when NOT using the N/C aux in line with the contactor coil
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1
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1K
Jraef
Jraef
C
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Voltage Balance
Replies
19
Views
3K
LarryFine
LarryFine
tortuga
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Outside feeder minimum rating and size [225.5]
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2
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2K
Sunny_92
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J
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VI controls
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3
Views
849
Besoeker3
Besoeker3
D
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Voltage drop and calculation
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6
Views
1K
Besoeker3
Besoeker3
M
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aluminum wiring vs copper
2
Replies
31
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11K
tortuga
tortuga
mbrooke
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Pole Pig Fusing
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13
Views
3K
mbrooke
mbrooke
M
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Lighting demand factor of 125%
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5
Views
5K
charlie b
charlie b
Z
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Size 2.4KV transformer for chiller
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2
Views
1K
ron
ron
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K-Factor Rated Utility Transformer
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7
Views
4K
jim dungar
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F
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Generator
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5
Views
1K
hillbilly1
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Exceeding HVAC 600 volt 40 amp Breaker Rating.
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5
Views
1K
powerplay
P
mbrooke
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Fuse and Feeder Settings
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8
Views
1K
mbrooke
mbrooke
B
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Wye/Delta voltage
Replies
15
Views
3K
GeorgeB
GeorgeB
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