Street light power consumption question

Discuss Street light power consumption question in the Industrial Electricians' Talk area at ElectriciansForums.net

R

Rob1984

Hi guys,

Just an ordinary street light, 400w HPS bulb.

What will be total consumption?

Lamp 400w
Electrical disribution(rectifier) 100w
Comprehensive Cable Loss 6%, 400x6%= 24w
Transformer loss 3%, 400x3%=12w
Reactive Power Compensation, power factor 0.85

Total: (400+100+24+12)/0.85 = 630W

Is this right true?

Please point out where do you disagree, any comments welcome.Also, please write what would be your calculation.

Regards,
Rob
 

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