QUESTION 22What value did you find for Letter P? 38 x 1.25 = 47.5 + 38 + 32 = 117.5 Amps 40 x 1.25 = 50 + 40 + 34 = 124 Amps 38 x 1.25 = 47.5 + 40 + 34 = 121.5 Amps 40 x 1.25 = 50 + 38 + 32 = 120 Amps Determine all of the values for three induction type motors on a 460 Volt 3 Phase Circuit.Step 6: Size FeederProtectionArticle 430.62Step 5: Size FeederConductorsArticle 430 24Step 4: Branch CircuitprotectionArticle 430.52Step 3: Size the BranchCircuit Conductors430.22 125% of FLCStep 2: RunningOvercurrent ProtectionMinimum 430.32(A)(1)Maximum 430.32(C)Step 1: Motor FLCTables 430.247, 248,249, or 250THTHML25 HP460 V3 PhaseFLC 32A1.15 S.F.EHINDINIM30 HP460 V3 PhaseHGFLC 38A40°C Temp Rise[]1M30 HP460 V3 PhaseloZFLC 38A40°C Temp Rise

Given figure shows three motors each of three phase supplied by main feeder. Full load current of…

Answered: What value did you find for Letter P?…

What value did you find for Letter P? 38 x 1.25 = 47.5 + 38 + 32 = 117.5 Amps 40 x 1.25 = 50 + 40 + 34 = 124 Amps 38 x 1.25 = 47.5 + 40 + 34 = 121.5 Amps 40 x 1.25 = 50 + 38 + 32 = 120 Amps

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter34: Motor Installation

Section: Chapter Questions

Problem 6PP: A 350-HP squirrel-cage induction motor is connected to a 480-volts three-phase feeder. The nameplate...

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QUESTION 22

What value did you find for Letter P?

		38 x 1.25 = 47.5 + 38 + 32 = 117.5 Amps
		40 x 1.25 = 50 + 40 + 34 = 124 Amps
		38 x 1.25 = 47.5 + 40 + 34 = 121.5 Amps
		40 x 1.25 = 50 + 38 + 32 = 120 Amps

Determine all of the values for three induction type motors on a 460 Volt 3 Phase Circuit.
Step 6: Size Feeder
Protection
Article 430.62
Step 5: Size Feeder
Conductors
Article 430 24
Step 4: Branch Circuit
protection
Article 430.52
Step 3: Size the Branch
Circuit Conductors
430.22 125% of FLC
Step 2: Running
Overcurrent Protection
Minimum 430.32(A)(1)
Maximum 430.32(C)
Step 1: Motor FLC
Tables 430.247, 248,
249, or 250
TH
TH
M
L
25 HP
460 V
3 Phase
FLC 32A
1.15 S.F.
E
HIND
INI
M
30 HP
460 V
3 Phase
H
G
FLC 38A
40°C Temp Rise
[]
1
M
30 HP
460 V
3 Phase
lo
Z
FLC 38A
40°C Temp Rise

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