Electrical Calculations / Engineering

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Fire pump and jockey pump OCPD sizing when fed from POCO and only controllers are provided
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2
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1K
gadfly56
gadfly56
mshields
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Zigzag Transformer
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7
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968
synchro
synchro
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On-demand water heater
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12
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1K
GoldDigger
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3- phase to 1-phase system.
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13
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1K
hillbilly1
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Cultivation Facility Amperage Requirements
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5
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798
jms-lbh
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Wire size for 200amp service / 135 feet
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1
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550
tom baker
tom baker
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Tankless Water Heaters
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10
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2K
tortuga
tortuga
Dsg319
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3 motors, 1 branch circuit.
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14
Views
990
david luchini
david luchini
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Non-Fused Disconnect Switch Inrush Rating
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7
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2K
tamiya0603
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mshields
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Elevator machine room feeders
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2
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1K
JoeStillman
JoeStillman
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Isolated Ground Help
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3
Views
621
JoeStillman
JoeStillman
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Coordination of Motor Overload
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8
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1K
topgone
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VD & Distance
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14
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1K
oldsparky52
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Sizing Disconnect Switch
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5
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2K
Jraef
Jraef
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How to calculate the DC Bus voltage of the UPS in Datacenter application?
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9
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2K
topgone
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Conduit spacing in ductbank
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8
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9K
Julius Right
Julius Right
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Breaker did not trip
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19
Views
2K
Dzboyce
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Grouch1980
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Track Lighting Current Limiting Panel
2
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28
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4K
Tulsa Electrician
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Sparky2791
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Arc Proof Tape Requirement
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1
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791
don_resqcapt19
don_resqcapt19
E
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480V to 120V
Replies
9
Views
1K
petersonra
petersonra
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