System Voltage 415 Volt

Phase 3 Phase 3

Type of Motor 3 Phase Induction

Motor Size 15 KW 15.00Motor Code A

Motor Efficiency 80%

Motor RPM 750

System P.F 0.8

Application of Motor Motor Load in Household Application

Place of Over Load Relay In the line (Putting the overload before the motor)

Motor Torque / CurrentMotor Rated Tourque (Full Load): 141 lb-ft (5252xHpxRPM)Motor Rated Tourque (Full Load): 191 Nm (9500xKw/RPM)Motor Starting Torque: 573 NmLock Rotor Current IL(Min): 28 AmpLock Rotor Current IL(Max): 88 AmpMotor Starting Current : 183 Amp (6 to 7 x Full Load Current)Motor Full Load Current (Line): 26 AmpMotor Full Load Current (Phase): 15 Amp

Fuse (As per NEC 430-52)Non-Time Delay Fuse (Max) 78 Amp (3 x full Load Current )Time Delay Fuse (Max) 46 Amp (1.75 x full Load Current )

Circuit Breaker (As per NEC 430-52)Instantaneous Trip Circuit Breaker (Max) 209 Amp (8 x full Load Current )Inverse Time Circuit Breaker (Max) 65 Amp (2.5 x full Load Current )

Over Load Relay SettingRelay Min (70% of FLC Phase): 11 AmpRelay Max (120% of FLC Phase): 18 Amp

ORRelay Setting (100% of FLC Line): 26 Amp

ContactorType of Contactor: AC7bMaking / Breaking Capacity of Contactor: 209 AmpMain Contactor (100% of FLC Line): 26 Amp

###3.313.7

DOL STARTER

4.6###0.37

2.95

1 Phase3 PhaseHPKWSingle Phase3 Phase InductionSynchronous

Wound RotorDirect Current

Application Contactor Making Cap

Non-Inductive or Slightly Inductive ,Resistive Load AC1 1.5

Slip Ring Motor AC2 4Squirrel Cage Motor AC3 10Rapid Start / Stop AC4 12Switching of Electrical Discharge Lamp AC5a 3

Switching of Electrical Incandescent Lamp AC5b 1.5

Switching of Transformer AC6a 12Switching of Capacitor Bank AC6b 12

Slightly Inductive Load in Household or same type load AC7a 1.5

Motor Load in Household Application AC7b 8

AC8a 6

AC8b 6

AC12 6

AC13 10

Control of Small Electro Magnetic Load ( <72VA) AC14 6

Control of Small Electro Magnetic Load ( >72VA) AC15 10

In the line (Putting the overload before the motor same as in DOL)In the windings (overload is placed after the Winding Split in to main and delta Contactor)

Code Min MaxA 1 3.14 1B 3.15 3.54 1C 3.55 3.99D 4 4.49E 4.5 4.99F 5 2.59

Hermetic refrigerant Compressor Motor with Manual O/L Reset

Hermetic refrigerant Compressor Motor with Auto O/L Reset

Control of Restive & Solid State Load with optocoupler Isolation

Control of Restive Load and Solid State with T/C Isolation

G 2.6 6.29H 6.3 7.09I 7.1 7.99K 8 8.99L 9 9.99M 10 11.19N 11.2 12.49P 12.5 13.99R 14 15.99S 16 17.99T 18 19.99U 20 22.39V 22.4

System Voltage

Phase

Type of Motor20.1072386059 Motor Size

Motor CodeMotor EfficiencyMotor RPMSystem P.F

Motor Load in Household Application Application of Motor

In the line (Putting the overload before the motor) Place of Over Load Relay

Motor Starting / Full Load CurrentMotor Rated Tourque (Full Load)Motor Rated TourqueMotor Starting TorqueLock Rotor Current IL(Min):Lock Rotor Current IL(Max):

(6 to 7 x Full Load Current) Motor Starting Current :Motor Full Load Current (Line):Motor Full Load Current (Phase):

Fuse (As per NEC 430-52)(3 x full Load Current ) 3 Non-Time Delay Fuse (Max)(1.75 x full Load Current ) 2 Time Delay Fuse (Max)

Circuit Breaker (As per NEC 430-52)(8 x full Load Current ) 8 Instantaneous Trip Circuit Breaker (Max)(2.5 x full Load Current ) 2.5 Inverse Time Circuit Breaker (Max)

Over Load Relay SettingRelay Min (70% of FLC Phase):Relay Max (120% of FLC Phase):

ORRelay Setting (58% of FLC Line):

ContactorType of Contactor:Making / Breaking Capacity of Contactor:Main Contactor (58% of FLC Line):Delta Contactor (58% of FLC Line):Star Contactor (33% of FLC Line):

Transient Time Delay Setting

3.313.7

Jignesh.parmar www.electricalnotes.wordpress.com jiguparmar@yahoo.com

STAR-DELTA STARTER

4.60.372.95

3.143.14

415 Volt

3 Phase 3

3 Phase Induction10 HP 7 10A

100%6000.8

Non-Inductive or Slightly Inductive ,Resistive Load

In the windings (overload is placed after the Winding Split in to main and delta Contactor)

88 lb-ft (5252xHpxRPM)119 Nm (9500xKw/RPM)356 Nm14 Amp44 Amp39 Amp (3x Full Load Current)13 Amp7 Amp

39 Amp (3 x full Load Current )23 Amp (1.75 x full Load Current )

104 Amp (8 x full Load Current )32 Amp (2.5 x full Load Current )

5 Amp9 Amp

8 Amp

AC119 Amp8 Amp (Start,Transition,Running)8 Amp (Running)4 Amp (Start)

30ms

Jignesh.parmar www.electricalnotes.wordpress.com jiguparmar@yahoo.com

(1/√3 Full Load Current)(1/√3 Full Load Current)(1/3 Full Load Current)

STAR-DELTA STARTER

0

32

83

Single Phase3 Phase InductionSynchronous

Wound Rotor

Direct Current

Time Delay Fuse Non-Time Delay Fuse Instantaneous Trip Inverse Time300% 175% 800% 250%300% 175% 800% 250%300% 175% 800% 250%

150% 150% 800% 150%

150% 150% 200% 150%

ARRANGEMENT OF MAIN CONTACTOR & AUXILIARY CONTACTORMAIN CONTACTOR

1 NO 1 NC

1 3 5 13 1 3 5 21

2 4 6 14 2 4 6 22

NO:13-14 NC:21-22

1 NO + 1NC 2 NO + 1NC

1 3 5 13 21 1 3 5 13 21 43 31

2 4 6 14 22 2 4 6 14 22 44 32

NO:13-14 NO:13-14, 43-44

NC:21-22 NC:21-22, 31-32

2 NO + 3NC 2 NO + 1NC

1 3 5 13 21 31 41 53 1 3 5 13 43 53 21 31

2 4 6 14 22 32 42 54 2 4 6 14 44 54 22 32

NO:13-14, 53-54 NO:13-14, 43-44, 53-54

NC:21-22, 31-32, 41-42 NC:21-22, 31-32

2 NO + 2NC

1 3 5 13 21 31 43

2 4 6 14 22 32 44

NO:13-14, 43-44

NC:21-22, 31-32

ARRANGEMENT OF MAIN CONTACTOR & AUXILIARY CONTACTORMAIN CONTACTOR AUXILIARY CONTECTOR

3NO + 1NC 1NO + 1NC

13 33 43 21 21 13

14 34 44 22 22 14

NO:13-14, 33-34, 43-44 NO:13-14

NC:21-22 NC:21-22

2NO + 2NC 1NO + 1NC

13 21 31 43 43 31

14 22 32 44 44 32

NO:13-14, 43-44 NO:43-44

NC:21-22, 31-32 NC:31-32

2NO + 2NC 2NO + 2NC

53 61 71 83 53 61 71 83

54 62 72 84 54 62 72 84

NO:53-54. 83-84 NO:53-54, 83-84

NC:61-62, 71-72 NC:61-62, 71-72

1NO + 3NC

13 21 31 41

14 22 32 42

NO:13-14

NC:21-22, 31-32, 41-42

SUMMARY OF CONTACTORMAIN CONTACTOR: 1-2, 3-4, 5-6

NB: You can easily identify Whether Contactor is NO , NC from above Summary

AUXILARY CONTACTOR: (NO) : 13-14, 33-34, 43-44, 53-54, 83-84

AUXILARY CONTACTOR: (NC) : 21-22, 31-32, 41-42, 61-62, 71-72