piyush sher

7/31/2019 Piyush Sher

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8/27/12 PLC BASED BOTTLE

PROJECT ON

DOL STARTER FOR FWD P&REV P &FWD INCHING

&REV INCHING Along WithRemote FWD P &Remote

STOP For

S .C.I.Motor

Presented By:1.2.

11


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OBJECTIVE

The objective of the project is to controll the SCIM Motorwith DOL Starter with help of contactors with momentry

push button for all four running condition FP,RP,FI RI with

proper Interlocking With phase loss protection,short cktprotection, Over Load protection .

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WORKING BLOCK DIAGRAM andCKT Diagram OF THE PROJECT

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When we press FP start push button,FPcontactor coil will energize &NO holdingcontact of the Contactor will be closed alongwith all three others NO power contacts andthree phase R Y B will be switched through

contactor and contactor o/p will be reach toOLR and olr will given three phase to SCIMMOTOR and SCIM Motor will be run in FWDdirection continusly .on that time no other

command will be reached to motor terminal sSame process will be done for all other threecondition RP ,RI,FI .Each ckt will beinterlocked if any one condition is running .

Motor will overload or phase loss during

WORKING

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1. MCCB 32-Amp ---------------------1

2. NC Push button (stop push button) --2

3. No Push button (start push button)---6

4. No contacts-8 nos5. Nc contacts -4nos

6. Selector Switch -- 2 nos

7. Overload relay ------------------------------1

8. SCIM Motor------------------------------------1

9. Connecting wires for power & control ckts

PROJECTCOMPONENTS

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Click to edit Master subtitle style


RELAYS

TYPES OF RELAY1.LATCHING RELAY

2. SOLIDSTATE RELAY

3. CONTACTOR RELAY.

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RELAY LOGIC

A relay is an electrically operatedswitch. Many relays use anelectromagnet to operate a switching

mechanism mechanically, but otheroperating principles are also used.Relays are used where it is necessary

to control a circuit by a low-powersignal (with complete electricalisolation between control andcontrolled circuits), or where severalcircuits must be controlled by one77
http://en.wikipedia.org/wiki/Electrichttp://en.wikipedia.org/wiki/Switchhttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Switchhttp://en.wikipedia.org/wiki/Electric


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RELAY LOGIC

Basic design and operation

Simple electromechanical relay

Small relay as used in electronics A simple electromagnetic relay

consists of a coil of wire surrounding

a soft iron core, an iron yoke whichprovides a low reluctance path formagnetic flux, a movable iron

armature, and one or more sets ofcontacts there are two in the relaPLC BASED BOTTLE 88
http://en.wikipedia.org/wiki/Coilhttp://en.wikipedia.org/wiki/Magnetic_corehttp://en.wikipedia.org/wiki/Magnetic_reluctancehttp://en.wikipedia.org/wiki/Armature_(electrical_engineering)http://en.wikipedia.org/wiki/Armature_(electrical_engineering)http://en.wikipedia.org/wiki/Magnetic_reluctancehttp://en.wikipedia.org/wiki/Magnetic_corehttp://en.wikipedia.org/wiki/Coil


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RELAY LOGIC

[LATCHING RELAY]

Latching relay with permanentmagnet

A latching relayhas two relaxed

states (bistable). These are alsocalled "impulse", "keep", or "stay"relays. When the current is switched

off, the relay remains in its last state.This is achieved with a solenoidPLC BASED BOTTLE 99
http://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Solenoid


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RELAY LOGIC

SOLID-STATE RELAY

Solid state relay, which has nomoving parts

25 A or 40 A solid state contactors

A solid state relay (SSR) is asolid state electronic component thatprovides a similar function to an

electromechanical relay but does not1010
http://en.wikipedia.org/wiki/Solid_state_(electronics)http://en.wikipedia.org/wiki/Solid_state_(electronics)http://en.wikipedia.org/wiki/Solid_state_relayhttp://en.wikipedia.org/wiki/Solid_state_(electronics)http://en.wikipedia.org/wiki/Electromechanicalhttp://en.wikipedia.org/wiki/Electromechanicalhttp://en.wikipedia.org/wiki/Solid_state_(electronics)http://en.wikipedia.org/wiki/Solid_state_relayhttp://en.wikipedia.org/wiki/Solid_state_(electronics)http://en.wikipedia.org/wiki/Solid_state_(electronics)


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RELAY LOGIC

CONTACTOR RELAY

A contactor is a very heavy-dutyrelay used for switchingelectric motors and lighting loads,

although contactors are not generallycalled relays. Continuous currentratings for common contactors rangefrom 10 amps to several hundred

amps. High-current contacts are1111
http://en.wikipedia.org/wiki/Contactorhttp://en.wikipedia.org/wiki/Electric_motorhttp://en.wikipedia.org/wiki/Silverhttp://en.wikipedia.org/wiki/Electric_motorhttp://en.wikipedia.org/wiki/Contactor


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APPLICATIONS

Start/stop of lamp

Paint industry

Powder application Start/stop of motor

Semi drill of job

Auto drill of job

ON/OFF of lamp

Filling and labeling of bottle 1212


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Click to edit Master subtitle style


AC MOTOR

BASICS


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Purpose of an AC Motor

ElectricalEnergy

MechanicalEnergy

TC


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Typical Motor Components

Lubrication and PipePlugs

Eyebolts

ComputerDesigned

Inner Bearings Caps

Shaft Run Out

Open BearingConstructionModern Non-

hygroscopicInsulation System

IntegrallyCast Frame

PositiveLubricationSystem

Non-Sparking, CorrosionResistant and BidirectionalCooling Fans

RotatableDiagonally SplitConduit Boxes

Cast IronEnd Shields


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AC Motor Construction

Stator Laminations

Stator Winding

Assembly

Motor Shaft

Die-cast RotorAssembly

3 Phase Winding Circuit w/Connections T1, T2 & T3


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AC MOTOR CONSTRUCTION

Stator WindingAssembly

RotorAssembly

Motor FrameAssembly


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Bar Magnet

NS

Lines of Flux

Flux Density =# of Flux Lines / per unit area


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Parts of an AC Motor

Electro-Magnets

Stator

Roto

r


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Base Speed

The Speed Produced by Applying

Motor Nameplate Rated Voltageat

Rated Frequency


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AC Motor Review

In an AC motor, speed varies by:

RPM =

120F

P - Slip

Where:F is frequency in hertzP is the # of motor polesSlip is in RPM


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8/27/12 PLC BASED BOTTLEPLC BASED BOTTLE 2222


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Motor nameplate Horsepower is achieved at Base RPM:

HP = Torque * Speed / 5252

Torque

RPMBase Speed

100%

Horse

power

Constant TorqueRange

Constant HorsepowerRange

Note that motor nameplatehorsepower is onlyachieved at and above

base speed, NOT BEFORE.


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Motor Classifications

NEMA A

NEMA B

NEMA C

NEMA D


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Speed & Current Relationship

for Reluctance Induction Motor

%Current

%Speed

Current

0

200

400

600

25

50

75

100


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Typical Current & Torque Relationship

for Squirrel Cage Induction Motor

0

%Currentan

d%Torque

%

Speed

Curren

t

20

0

400

600

25

50

75

100

Torque


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Speed / Torque Curve

0

%Torque

%Speed

MaximumorBreak-Down Torque

100

200

25

50

75

100Synchronou

s

Torque

150

225

Pull-Up Torque

Breakaway orStarting Torque

150%Torque

Rated Torque


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Review of How Motor Works

Motor converts Electrical Energy toRotating Mechanical Energy

Coils placement in motor creates

rotating, magnetic field in stator Rotating magnetic field cuts rotor bar

and induces current in rotor

Rotor current creates magnetic field onrotor

Attraction of rotor to stator creates

torque and, hence, horsepower


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Thank you

PLC BASED BOTTLE 2929

piyush sher

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