Electrical Calculations / Engineering

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NEC 220.53 Appliance Load
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20
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kwired
kwired
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Optional calculation not permitted for both feeders & service-entrance????
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1
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1K
jumper
jumper
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Sizing a Manhole / Electrical Vault
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2
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5K
bob
bob
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reduced neutral: reuse existing bus duct with 50% neutral?
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3
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2K
jcarter052496
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Need help setting VFD speed in Hz.
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10
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7K
milemaker13
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Voltage in a three phase system.
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15
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7K
kwired
kwired
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Anybody used ToolMex motors??
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11
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4K
Jraef
Jraef
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Ampacity using Table 310.15(B)(16)
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6
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4K
david luchini
david luchini
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Loud electronic ballast
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8
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3K
LEO2854
LEO2854
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NEC 220.83 Existing Dwelling Unit (A) or (B)
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0
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2K
Mike Lima
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Nec 220.12....What is an open porch?
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2
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4K
Mike Lima
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Q Transformer Question.
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3
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2K
iwire
iwire
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Service size calculations when combining 1-ph and 3-ph services into one 3-ph service
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8
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6K
kwired
kwired
Mike01
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Medium Voltage TCC
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2
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1K
jghrist
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overcurrent protection for capacitors
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15
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10K
jghrist
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Sub panel bonding from 1000 amp service with remote metering.
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15
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5K
kwired
kwired
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Utility X/R Ratio
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3
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26K
ron
ron
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ITE XL-U BUSWAY
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1
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2K
jim dungar
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Breaker Panel vs Fusible Panel?
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19
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7K
T.M.Haja Sahib
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Square-D Dry type low voltage impedance data table
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4
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8K
jim dungar
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