GUSTAVO SOLANO
New member
I need clarification in the attached calculation for a switch gear equipment?
thank you,
NEED SOME CLARIFICATIONS ON THE FOLLOWING PROCEDURE:
I HAVE A 480V-3 PHASE SWITCH GEAR PANEL TO SIZE WITH THE FOLLOWING ITEMS CONNECTED TO IT:
(2) 3 PHASE CHILLERS WITH A MINIMUM CIRCUIT AMP.=530.3 AMPS EACH
(8) 50 HP 3 PHASE MOTORS INDEPENDENT OF THE CHILLER SYSTEMS WITH A FULL LOAD AMPS= 65 AMPS EACH. ALL MOTORS HAVE VARIABLE FREQUENCY DRIVES.
QUESTION:
IN ORDER TO ARRIVE AT THE FLA OF THE PANEL DO I TAKE 125% OF THE FLA OF EACH MOTOR AND CHILLERS? OR DO I TAKE 125% OF THE FLA OF THE HIGHEST MOTOR AND THE OTHER MOTORS FLAS AT 100% ?
gus solano
thank you,
NEED SOME CLARIFICATIONS ON THE FOLLOWING PROCEDURE:
I HAVE A 480V-3 PHASE SWITCH GEAR PANEL TO SIZE WITH THE FOLLOWING ITEMS CONNECTED TO IT:
(2) 3 PHASE CHILLERS WITH A MINIMUM CIRCUIT AMP.=530.3 AMPS EACH
(8) 50 HP 3 PHASE MOTORS INDEPENDENT OF THE CHILLER SYSTEMS WITH A FULL LOAD AMPS= 65 AMPS EACH. ALL MOTORS HAVE VARIABLE FREQUENCY DRIVES.
QUESTION:
IN ORDER TO ARRIVE AT THE FLA OF THE PANEL DO I TAKE 125% OF THE FLA OF EACH MOTOR AND CHILLERS? OR DO I TAKE 125% OF THE FLA OF THE HIGHEST MOTOR AND THE OTHER MOTORS FLAS AT 100% ?
gus solano
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