Power Process
Electrical Engineering Technology
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3ɸ Phase Induction motor Forward-Reverse direct on-line (DOL) connection.

Three-phase induction motor Reverse Forward Control Circuit and connection with demo running simulation testing. Reversing Starter is a special type of push-button starter, among which can be used to exchange the connectivity of any two terminals supplied to the director of the three-phase index motor rotating, along with the start/stop of the motor, two different contacts, one forward …

 

Three-phase induction motor Forward-Reverse direct on-line (DOL) connection.

 ➡ EKTS Software Download

How does a DOL Starter work?

The maximum form of motor starter for induction motors is directly on-line starter. Direct-on-line motor starter (DoL) consists of an MCCB or circuit breaker, connector and overload relay for protection. Electromagnetic contact which can be opened by thermal overload relay under fault conditions.

What is meant by DOL Starter? A direct line (DOL) or line starter across the motor terminal is applicable to full-line voltage, at the beginning or in cubic positions can be found typically an ELO drawing. It is the simplest type of motor starter. A DOL Motor Starter also has a safety device, and in some cases, monitoring the situation. What are DOL and RDL?

 

The DOL Starter motor comprises two contractors connecting the power supply. … the two contractors can be complementary to each other and the opposite of motor direction can be used. When the supply is directly connected to the motor, it is named after reverse DOOL starter. How does a star-delta motor starter work? The working principle of Star-Delta Starter This is the method of reducing voltage starting. … Star / Delta Starter is built from. Power Process Electrical Engineering Technology

 

Smart load controller Arduino program.

What is Arduino??

Arduino is an open-source electronics platform based on easy works to use hardware and software. Arduino boards are able to read inputs light on a sensor, a finger on a button or a Twitter message and turn it into an output activating a motor, turning on an LED, publishing something online, mainly any signal process operating to do. You can tell your board what to do by sending a set of instructions to the microcontroller on the Arduino board. To do so you use the Arduino programming language (based on Wiring), and the Arduino Software (IDE), based on Processing.

The over of years Arduino has been the brain at the thousands of project’s from everyday objects to complex scientific instruments. A worldwide community of makers students, artists, hobbyists, programmers, and professionals has gathered around this open source platform. Arduino was born of the I vrea Interaction Design Institute as an easy tool for fast prototyping and aimed at students without a background in electronics programming. As soon as it is reached a wider community.

Arduino board of the started changing to adapt to new needs and challenges. It’s differentiating the offer from simple (8bit) boards to products for IoT applications, 3D printing, wearable, and embedded environments. Arduino all boards are completely open source and empowering user’s to build them independently, eventually adapt them to their particular needs. The software, too, is open source, and it is growing through the contributions of user’s worldwide.

     

How to controller a load Android app???

Start we make a smart load controller android app. flow the step first Buy now Arduino and necessary equipment. There are two ways you can buy equipment. First, from an electronics store nearby, and secondly from the online electronics market. Search online according to your schedule. Or

Buy now

Project equipment’s

☑ Arduino board.
☑ Bluetooth Module.
☑ Relay Module.
☑ Male to male Jumper.
☑ Male to Female Jumper.
☑ Different Color LED.
☑ Resistor 250 ohm.
☑ 12 Volt or 5 volt Power source.

Load controller Arduino program.

Write an Arduino program on load management. Go to the Arduino website and download Arduino software(Free Download). Download the load system normal process. Download and install depending on your system according to common processes, once installed, open the software. Start writing an Arduino program based on project control.

…………………………………………….

* Bluetooh Basic: SMART LOSD CONTROLLER - Avishkar
* Coder - MD: USHUF ALI
* Website: www.eppt.info
* App Link:
* This program lets you to control a home appliance using a bluetooth module
*/////////////////////////////
char Incoming_value = 0; //Variable for storing Incoming_value
void setup()
{
Serial.begin(9600); // Sets the data rate in bits per second (baud) for serial data transmission
pinMode(2, OUTPUT); // Sets1 digital pin 2 as output pin
pinMode(3, OUTPUT); // Load2 digital pin 3 as output pin
pinMode(4, OUTPUT); // Load3 digital pin 4 as output pin
pinMode(5, OUTPUT); // Load4 digital pin 5 as output pin
pinMode(6, OUTPUT); // Load5 digital pin 6 as output pin
pinMode(7, OUTPUT); // Load6 digital pin 7 as output pin
}
void loop()
{
if(Serial.available() > 0)
{
Incoming_value = Serial.read(); //Read the incoming data and store it into variable Incoming_value
Serial.print(Incoming_value); //Print Value of Incoming_value in Serial monitoring
Serial.print("\n"); //New line
if(Incoming_value == '1') //Checks whether value of Incoming_value is equal to 1
digitalWrite(2, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'a') //Checks whether value of Incoming_value is equal to a
digitalWrite(2, LOW); //If value is 0 then LED turns OFF

if(Incoming_value == '2') //Checks whether value of Incoming_value is equal to 2
digitalWrite(3, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'b') //Checks whether value of Incoming_value is equal to b
digitalWrite(3, LOW); //If value is 0 then LED turns OFF

if(Incoming_value == '3') //Checks whether value of Incoming_value is equal to 3
digitalWrite(4, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'c') //Checks whether value of Incoming_value is equal to c
digitalWrite(4, LOW); //If value is 0 then LED turns OFF

if(Incoming_value == '4') //Checks whether value of Incoming_value is equal to 4
digitalWrite(5, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'd') //Checks whether value of Incoming_value is equal to d
digitalWrite(5, LOW); //If value is 0 then LED turns OFF

if(Incoming_value == '5') //Checks whether value of Incoming_value is equal to 5
digitalWrite(6, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'e') //Checks whether value of Incoming_value is equal to e
digitalWrite(6, LOW); //If value is 0 then LED turns OFF

if(Incoming_value == '6') //Checks whether value of Incoming_value is equal to 6
digitalWrite(7, HIGH); //If value is 1 then LED turns ON
else if(Incoming_value == 'f') //Checks whether value of Incoming_value is equal to f
digitalWrite(7, LOW); //If value is 0 then LED turns OFF

}

}

…………………………………………………………
download

Arduino board connect the software and upload your program

The most powerful Smart Home controller android app. Universal smart home app development making, all in one smart home app using. The smart home load dashboard android app is there an app to control all home appliances controlling the best android home app.
Smart home app iPhone
Smart home control panel. Smart load controlling. Bluetooth
Controlled Electronic Home Appliances.

 ➡ How to use wifi home appliances control ???

 ➡ How to losd switching use an android phone???

Mobile control electrical appliances circuit diagram. Home appliances control using a mobile phone. Control your home from your phone. Checking the Program.

Download program and Arduino software. Normally install the software on your system. smart load controller Arduino program opens. Arduino cable connection your programming device (PC, Laptop) operating the board. Tools select, Select your Arduino board model. Your device from select Port: (COM4, COM…). Must verify the program and the Upload program in the Arduino memory. Watching the full video then start the project. Mobile control switch. Electrical switch controlled by a smartphone. Control lights, fan, motor, pump, totally any electrical load with a smartphone. Controlling of electrical device switch by using a mobile phone mini-project. Mobile control electrical appliances circuit diagram download our website. Control any device through mobile phones. Control your home from your phone. its Microcontroller project program (Arduino UNO) Download PDF.

Since the project is a smart load controller, it will handle the load control a smart (Android) phone, Using Bluetooth Wireless Communication. So we have to create an Android app for that. This allows me to easily switch a load.

Go to the app maker Web site: MIT APP INVERTOR.

First download (APK file) and upload the app maker site.

App home screen see you.

The project is sucssesfuly complete. 

 

 

Diesel power plant

Principle of a diesel power plant.

A diesel generator (also known as diesel Genset) is the combination of a diesel engine with an electric generator (often an alternator) to the generated electrical energy. This is a specific case of the engine-generator. A diesel compression-ignition engine is usually designed to run on diesel fuel, but some types are adapted for natural gas or other liquid fuels.

Diesel generating sets are used in places without connection to a power grid network, or as emergency power-supply, if the grid supply fails, as well as for more complex applications such as peak-lopping, export to the power grid and grid support.

Proper sizing of diesel generators is critical to avoid low type load or a shortage of power. Sizing is complicated by the characteristics of modern electronics, specifically nonlinear loads. In size ranges around 50 MW and above. An open cycle gas turbine is more efficient at full-load than an array of diesel engines and far more compact. With comparable capital costs but for regular part-loading, even at these power levels, diesel arrays are sometimes referred to open cycle gas turbines and due to their superior efficiencies.

✓Principle of a diesel power plant.

Type of engine:
☑ IC Engine- Internal combustion engine.
☑ EC Engine- External combustion.

Classification of IC engine:
☑ According to the effective cycle
☑ Two-stroke cycle engine
☑ Fure stroke cycle engine

According to the fuel burnt:
☑ Spark ignition engine
☑ Compression ignition engine

 According to the fuel:
☑ Petrol engine
☑ Diesel engine
☑ Gas engine

According to the cylinder arrangement:
☑ Horizontal type
☑ Vertical type
☑ V-type
☑ Radial engine

According to the valve arrangement:
☑ I-Head
☑ L-Head
☑ F-Head
☑ THead

According to the cooling process:
☑ Air cooling
☑ Water cooling

According to the speed of engine:
☑ High-speed engine
☑ Medium-speed engine
☑ Low-speed engine

According to the thermodynamic cycle:
☑ Otto cycle
☑ Diesel cycle
☑ Jule’s cycle
☑ Duel cycle

According to the application of use:
☑ Stationary engine
☑ Automobile engine
☑ Locomotive engine
☑ Aircraft engine
☑ Marine engine

According to the engine starting:
☑ Hand starting engine
☑ Self-starting engine
☑ Air compressed engine
☑ Cartridge system engine

Operation of diesel power plant PDF

Type of transformer and Equation.

Type of Transformer.

Transformer.
A transformer is an electrical static device that transfers electrical energy by inductive coupling between its winding circuits. A varying circuit in the primary winding creates a varying magnetic flux induced in the core of the transformer and thus a varying magnetic flux through on the secondary winding. This varying magnetic flux induces a varying induced electromotive force emf’’ or voltage in the secondary winding.

Transformer range in size from thumbnail size used in microphones to units weighing hundreds of tons interconnecting the power grid circuit. A wide range of transformer designs is used in electronic and electric power applications. The transformer is essential for the transmission, distribution, and utilization of electrical energy.

Consider the ideal, lossless, perfectly coupled transformer shown in the circuit diagram at right having primary winding and secondary windings with the Np and Ns turns, respectively.
The ideal transformer secondary induces voltage Es =Vs as a proportion of the primary voltage Vp=Ep and respective winding turns as given by the

✓Equation.

Np=Turn of the primary coil

Ns=Turn of the secondary

ɸm= ”Bm×A”  In the core coil maximum flux

f=Frequency 

Minimaum flux to maximum flux= 1/4fTransformer

Change of total flux=ɸm/1/4f 

Total emf /turn=4fɸm

Form factor=RMS value/Total value

Induced emf RMS value per turn=1.11×4fɸm

                                                           =4.44fɸm

Inspired by the whole coil Induced EMF. E=4.44fNɸm  volt.
 
Primary Induced EMF,     Ep=4.44fNpɸm  volt.
Secondary Induced EMF, Es=4.44fNsɸm  volt.
 

✓Type of Transformer.

According to operation:
☑ Step-Up transformer.
☑ Step-Down Transformer.

According to the construction of core:
☑ Core Type Transformer.
☑ Shell Type Transformer.
☑ Spiral core Type Transformer.

According to the use or application:
☑ Power transformer.
☑ Distribution Transformer.
☑ Auto Transformer. 
☑ Instrument Transformer.

Type of Instrument Transformer:
☑ Current Transformer.
☑ Potential Transformer.

According to the cooling method:
☑ Normal or natural colled Transformer.
☑ Forced air-cooled or Are blast type Transformer.
☑ Oil-filled self-cooled Transformer.
☑ Oil-filled water-cooled Transformer. 
☑ Oil-filled forced air-cooled Transformer.
☑ Filled Forced oil-cooled Transformer.

According to the setup method:
☑ Indoor type Transformer.
☑ Outdoor type Transformer.
☑ Pole mounted Transformer.
☑ Underground Transformer.

According to frequency:
☑ Audio frequency Transformer.
☑ Radio frequency Transformer.

According to the number of phases:
☑ Single-phase Transformer.
☑ Poly-phase Transformer.

Star-delta Three-phase induction motor direct on-line (dol) connection.

Star-delta Three-phase induction motor direct on-line (dol) connection.

 

Star-delta Three-phase induction motor direct on-line (dol) connection.

Star-delta motor direct on-line (DOL) connection equipment:-

✓Power Circuit:

☑ MCCB ”Molded Case Circuit Breaker”
☑ Magnetic Contactor
☑ Overload Relay Contact
☑ Power Cable

✓Control Circuit:

☑ MCB ” Miniature Circuit Breaker”
☑ On Switch
☑ Off Switch
☑ Emergency Switch
☑ On Indicator Lame Red
☑ Off Indicator Lamp Green
☑ Trip Lamp (Overload) Yellow
☑ Control cable

✓Measuring Equipment:

☑ Ammeter
☑ Voltmeter
☑ Watt Meter

Star delta 3ɸ Phase Induction motor direct on line (DOL) connection simulator video tutorial… 

What is the difference between DOL and Star-Delta?

The (DOL) starter consists of two switches namely Green Clour and Red clour Switch using. Where the green switch is using to start and red switch is using to stop the motor. The motor is start and running indicator red lamp used, And the used stop position green signal indicator lame. Motor trip condition ”Overload” using the yellow indicating lamp. The DOL starter comprises a circuit breaker (or) MCCB (Miniature Circuit Breaker), an overload relay and contactor for protecting the motor. The two switches the motor control of the contacts.

 

What is the difference between (DOL) and Star-Delta?

58% voltage to each winding. Starting current is 1/3 that by DOL Starter. Windings are initially in star connection used. After the motor reaches a speed ”say, 80 %,” the connections are changed Star to delta

 

Where is the (DOL) starter used?
Direct On Line Starter (DOL) motor is suitable for example, a utility may require rural customers to use reduced voltage starters for motors larger than 15 kW. DOL starting is sometimes used to start connection small water pump motor, fans, compressors, and conveyor belts.

What is direct on-line starting?

 

A direct on-line (DOL) starter connection or across the line starter applies the full line voltage to the motor terminals and motor winding. The starters or cubicle locations can usually be found on an ELO diagram. This is the simplest type of motor (DOL) starter.

 

How many types of motor starters are commonly in use?

Most of the industrial operation uses three-phase induction motors as compared to any other type of motor used. There are used different techniques to start a three-phase induction motor.

Classification of DC Generator.

Classification of DC Generator

According to field excitation of the generator is divided into two.

   ✓Separately excited Generator.

   ✓Self-excited Generator.

✓Type of self-excited Generator.

   ✓Series Generator.

   ✓Shunt Generator.

   ✓Compound Generator.

✓Type of Compound Generator.

   ✓Long Shunt Compound Generator.

   ✓Short Shunt Compound Generator.

Different types of DC generators and their EMF equation.

 

Separately Excited generator

✓Separately Excited generator.

 ☑VL = Load Voltage

 ☑Ia = Armature Current

 ☑IL = Load Current

 ☑Ra = Armature Resistance

     ✓The generator armature induced EMF,, E= VL+IaRa              (IL=Ia)

✔️Armature generates power,, Pa=EIa Watt.

 

Self-excited Generator.

Self-excited Generator.✓Series Generator.

 ☑Rse = Series field Resistance

 ☑Ia=IL,      IL=P/VL

 ☑E = VL+Ia(Ra+Rse)

 ☑E = VL+IL

 ☑E = VL+ILRse+IaRa

✔️Produced Power Pa = EIa Watt.

 

Shunt Generator

✓Shunt Generator

 ☑VL = Load Voltage

 ☑Ia = Armature Current

 ☑Ish = Shunt Current

 ☑Ra = Armature Resistance

 ☑Rsh = Shunt field Resistance

   ✓Load Current IL = P/VL

   ✓Shunt Current Ish = VL/Rsh

   ✓Induced Armature EMF,, E = VL+IaRa

✔️Armature Produced Power Pa=EIa Watt.

 

Compound Generator.

 

Long shunt Generator

✓Long Shunt Compound Generator

   ✓Load Current IL = P/VL

   ✓Shunt Current Ish = VL/Ish

   ✓Armature Current Ia=IL+Ish

   ✓Armature Induced EMF,, E = VL+Ia(Ra+Rsh)

✔️Armature Produced Power Pa=EIa Watt.

 

Short Shunt Compound Generator

✓Short Shunt Compound Generator.

   ✓Load Current IL = P/VL

   ✓Voltage drop in the shunt field,, Vsh = VL+ILRse

   ✓Shunt Current Ish = VL/Ish

   ✓Armature Current Ia=IL+Ish

   ✓Armature Induced EMF,, E = VL+ILRse+IaRa

✔️Armature Produced Power Pa=EIa Watt

 

Download PFF

Three phase Short circuit current calculation

Problem solve:

Causes of short circuit fault.

 1. Depletion of insulation energy

 2. Mechanical hit

Different types of short circuit faults.

  1. Symmetrical Fault

  2. Unsymmetrical Fault

Type of Unsammitrical faults.

   ✓ Single line to ground fault

   ✓ Line to line fault

   ✓ Dabul line to ground fault

Short circuit fault position.

Three phase line

☑ The three-phase line.

   ✓ Line 1=R

   ✓ Line 2=Y

   ✓ Line 3=B

   😐 Neautral =N=G

 

Single line to earth fault

☑ Single line to earth fault.

   😥 Line 1=R to N(G) short circuit.

   ✓ Line 2=Y

   ✓ Line 3=B

   😐 Neutral =N (G)

 

☑ Line to line short circuit fault.Line to line short circuit fault

   😥 Line 1=R to Line 2=Y short circuit.

   ✓ Line 3=B

   😐Neutral =N (G)

 

 

☑ Line to line short circuit fault.Line to line short circuit fault

   ✓ Line 1=R 

   😥 Line 2=Y Line 3=B short circuit.

   😐Neutral =N (G)

 

 

☑ Dabul line to ground short circuit fault.Dabul line to ground short circuit fault.

   😥 Line 1=R to Line 2=Y short circuit

   ✓ Line 3=B

   😐 Neutral =N (G)

 

 

☑ All the three phase short circuit fault.All the three phase short circuit fault

   😥 Lint 1=R to Line 2=Y to Line 3=B

✔️All the line of a point

✔️That make a short circuit.

😐 Neutral =N (G)

 

☑ All the three phase and ground short circuit fault.All the three phase and ground short circuit fault

   😥 Lint 1=R to Line 2=Y to Line 3=B And the Neutral =N (G) point

✔️Grount short circuit foult.

 

 

Percentage reactance method formula.

 

✓ According to the base KVA Generator reactance

✔️ %XT=KVAbase×private%XT/KVArated 

 

✓ Full Load Current

✔️ IFL=KVAbase/√3×V

 

✓ Short circuit current

✔️ Isc=IFL×100/%XT

 

✓ KVA short circuit

✔️ KVASh=KVAbase×100/%XT

 

Problem solve:
Problem solve:
 
☑Now given.,,
✓Generator A=5000KVA 6%
✓Generator B=8000KVA 8%
✓Generator C=8000KVA 8%
✓Reactor of all 10%
 
✔️Taken KVAbase 5000.
 
 
☑Now Reactance of generator A, %X= 5000×6/5000
                                                                      = 6%
 
☑Now Reactance of generator B, %X= 5000×8/8000
                                                                        = 5%
 
☑Now Reactance of generator C, %X= 5000×8/8000
                                                                        = 5%
                                                      
 
☑The circuit of total reactance
 
the reactance of reactor a generator
%XT = [{(6+10)//(5+10)+10}//5]
 
%XT =3.90%
 
☑Full load current
IFL = 5000//√3×11
       = 262.43Amp
 
☑Short circuit current
Isc = 262.43×100/3.90
       = 61728.98Amp
 
☑KVA short circuit
KVAsh = 5000×100/3.90
              = 128205.13 kVA.
 
 
✓ ✘ ☑ ☒ ✖✔️

Industrial Electrical Power Control load Calculation.

Load Type:

1. 2.5 HP, 220V, 1ɸ Induction motor one pitch.

2. 10KW, 440V, 3ɸ Induction motor two pitch.

3. 25KW, 440V 3ɸ Induction motor one pitch.

4. 80W, 220V 1ɸ Cooling Fan two pitch.

Calculation of total load current.

1. 2.5 HP, 220V, 1ɸ Induction motor one pitch.

Motor current rating:

1HP=746W

2.5HP×746=1865W

:- I=P/V × cos θ

I=1865/220×0.8

I=10.596Amp

I=11 Amp

 

2. 10KW, 440V, 3ɸ Induction motor two pitch.

Motor current rating:

10×1000=10,000W

I=10,000/√3×440×cos θ

I=10,000/√3×440×0.8

=16.40Amp

16.40×2=32.80

=33Amp

Motor Current rating: 17Amp.

 

3. 25KW, 440V 3ɸ Induction motor one pitch.

Motor current rating:

I=25000/√3×440×cos θ

I=25000/√3×440×0.8

I= 41Amp

 

4. 80W, 220V 1ɸ Cooling Fan two pitch.

Cooling fan current rating:

I=80/220×cos θ

I=80/220×0.8

I= 0.455Amp

0.455×2=0.9090Amp

 

 Total Load Current:

11 Amp+33Amp+41Amp+0.9090Amp=85.909Amp

=86Amp

Main MCCB SelectionMolded Case Circuit Breakers

Total Current: 86Amp+20% =103.2Amp

Line Rated Current

15 A, 15…60A, 20 A, 25 A, 30 A, 35 A, 40 A, 45 A, 50 A,

60 A, 70 A, 70…150 A, 80 A, 90 A,100 A, 110 A, 125 A, 150 A

Selected Main MCCB Current rating: 110Amp

Component type

Molded Case Circuit Breakers

Line Rated Current

100Amp

Number of Poles

3p

Rated operational voltage

600 V AC

Current rating

80 %

Height

162.56 mm (6.4 in)

Width

104.65 mm (4.12 in)

Depth

110.74 mm (4.36 in)

 

Busbar selection.

Busbar

Total Current Rating: 86Amp + 25%

=107.5 =108Amp

Cupper Busbar size: 108/0.7〖mm〗^2

=154.2 mm〗^2 =156 〖mm〗^2

If Width: 7 〖mm〗^2

155/7 〖mm〗^2=22.14 mm

Height: 23 mm

 

MCB selection

Motor Current rating: 11Amp+20%

=13.2 Amp

MCB current rating: 1A, 2A, 3A, 4A,5A, 6A, 8A, 10A, 13A, 15A, 16A, 20A, 25A, 30A, 32A, 35A, 40A, 45A, 50A, 63A.

MCB Current rating: 13 Amp

Miniature circuit-breaker

Product

Miniature circuit-breaker

Line Rated Current

13 A 122 °F (50 °C) EN/IEC 60947-2

Rated operational voltage

240 V AC 50/60 Hz between phase and neutral

Number of Poles

1P

height

3.19 in (81 mm)

Width

0.71 in (18 mm)

Depth

2.83 in (72 mm)

 

Magnetic Contactor (MC) Selection

Motor V/I rating: 220V, 11Amp.

Type of MC Voltage rating: 24V, 120V, 200V, 208V, 240V, 480V, 500V

Selected MC Rating: 240V.

Component type

Contactor

NEMA size

00

Control circuit voltage

240 V AC

Auxiliary contact composition

1 NO + 1 NC

Phase

3 phases

Line Rated Current

18 A

Rated operational voltage

600 V AC

Maximum Horse Power Rating

3 hp 200 V AC – 5 hp 575 V AC

 

 

 

 

 

Magmatic contactor selection

 

 

 

 

 

 

 

 

 

 

Overload Relay Selection

Motor current rating: 11 Amp

Overload relay current rating range:

1…1.6A, 1.6…2.5A, 2.5…4A, 4…6 A, 5.5…8A, 7…10A, 9…13A, 12…18A, 16…24A, 17…24A, 17…25A, 23…28A, 23…32A, 25…32A, 30…38ª

Selected Overload relay current range:12…18A

 Component type

Thermal overload relay

Thermal protection adjustment range

9…13 A

Rated operational voltage

690 V AC 0…400 Hz

Temperature compensation

-4…140 °F (-20…60 °C)

 

 

 

Overload Relay selection

 

 

 

 

 

 

 

MCB selection

Motor current rating: 16.40Amp+20%

=19.68Amp =20 Amp

MCB current rating: 1A, 2A, 3A, 4A,5A, 6A, 8A, 10A, 13A, 15A, 16A, 20A, 25A, 30A, 32A, 35A, 40A, 45A, 50A, 63A.

Selected MCB Current rating: 20Amp

Component type

Miniature circuit-breaker

Poles

3P

Line Rated Current

20 A 122 °F (50 °C) EN/IEC 60947-2

Rated operational voltage

440 V AC 50/60 Hz between phases

Height

3.19 in (81 mm)

Width

2.13 in (54 mm)

 

 

 

 

Molded Case Circuit Breaker (MCCB)

 

 

 

 

 

 

 

 

Magnetic contactor selection

Motor V/I rating: 440, 17amp.

Type of MC Voltage rating: 24V, 120V, 200V, 208V, 240V, 480V, 500V

Selected MC rating: 480V.

Component type

Contactor

NEMA size

2

Control circuit voltage

 

Auxiliary contact composition

480 V AC

Phase

3P

Line Rated Current

45 A

Rated operational voltage

600 V AC

Maximum Horse Power Rating

10 hp 200 V AC – 25 hp 575 V AC

 

 

 

 

 

Magmatic contactor selection

 

 

 

 

 

 

 

 

 

 

Overload relay selection

Motor current rating: 17Amp

Overload relay current rating range:

1…1.6A, 1.6…2.5A, 2.5…4A, 4…6 A, 5.5…8A, 7…10A, 9…13A, 12…18A, 16…24A, 17…24A, 17…25A, 23…28A, 23…32A, 25…32A, 30…38A

Selected Overload relay current range: 16…24A,

Component type

Thermal overload relay

Thermal protection adjustment range

16…24A,

Temperature compensation

-4…140 °F (-20…60 °C)

Rated operational voltage

690 V AC 0…400 Hz

 

 

Overload Relay selection

 

 

 

 

 

 

 

 

MCB Selection

Motor current rating: 41Amp+20%

=49.2Amp =50Amp

MCB current rating: 1A, 2A, 3A, 4A,5A, 6A, 8A, 10A, 13A, 15A, 16A, 20A, 25A, 30A, 32A, 35A, 40A, 45A, 50A, 63A.

Selected MCB Current rating: 50Amp.

Component type

Miniature circuit-breaker

Line Rated Current

50 A 77 °F (25 °C) EN/IEC 60947-2

Poles description

3p

Height

3.19 in (81 mm)

Width

2.13 in (54 mm)

Depth

2.83 in (72 mm)

 

 

 

Molded Case Circuit Breaker (MCCB)

 

 

 

 

 

 

 

 

 

Magnetic Contactor selection

Motor V/I rating: 440, 41amp.

Type of MC Voltage rating: 24V, 120V, 200V, 208V, 240V, 480V, 500V

Selected MC rating: 480V.

Component type

Contactor

NEMA size

00

Control circuit voltage

480 V AC

Auxiliary contact composition

1 NO + 1 NC

Phase

3 phases

Line Rated Current

45 A

Maximum Horse Power Rating

10 hp 200 V AC – 25 hp 575 V AC

 

 

 

 

Magmatic contactor selection

 

 

 

 

 

 

 

 

 

 

Overload Relay selection.

Motor current rating: 41Amp

Overload relay current rating range:

1…1.6A, 1.6…2.5A, 23…28A, 23…32A, 25…32A, 30…38A, 30…40A, 37…50A, 48…65A, 55…70A,, 25…32A, 30…38A

Selected Overload relay current range:37…50A

Component type

Thermal overload relay

Thermal protection adjustment range

37…50A

Rated operational voltage

690 V AC 0…400 Hz

Temperature compensation

-4…140 °F (-20…60 °C)

 

 

 

Overload Relay selection

 

 

 

 

 

 

 

1ɸ MCB Selection of cooling fan

2 pitch Cooling fan current rating: 0.727Amp+20% =0.875Am.

MCB Current rating: 1 Amp.

component type

Miniature circuit-breaker

Line Rated Current

1Amp

Rated operational voltage

240 V AC 50/60 Hz between phase and neutral

Height

3.19 in (81 mm)

Width

0.71 in (18 mm)

Depth

2.83 in (72 mm)

Number of poles

1

 

 

 

Miniature circuit-breaker

 

 

 

 

 

 

 

 

 

 

 

Control Circuit Equipment

  ☑Push Button NO

  ☑Push Button NC

  ☑Emergency Switch

  ☑Green (ON)Indicator LED

  ☑Red (OFF)Indicator LED

  ☑Yellow (Trip) Indicator LED

  ☑Ammeter

Volt meter

Wattmeter

Panel Board Calculation

Height:48

Width:MCCB width+MCCB to MCB 2’’ gap + MCB Width + MCB to MCB 1.5’’+ Left & Right 3’’+3’’

Width:3’’+4.12’’+2’’+2.13+1’’+2.13’’+1’’+2.13’’+1’’+0.71’’+1’’+0.71’’+3’’

=23.93’’=24’’=26’’

Depth: 6+4.36+2+1=13.36’’=14’’

Cable Selection company chooes of  BRB LTD

Power Circuit Cable

Cable type: BYM

  • Cupper ConductorBRB Cable
  • Insulation PVC
  • Inner Covering PVC
  • Sheath PVC

Wire Size:1×10〖mm〗^2, 7/1.35mm diameter, Current rating 61 Amp.300/500Volt.

Cable size=Cable lug

Control Circuit Cable

Cable Type: BYA

Cupper conductor, PVC Insulation.

Wire Size: 1×3.0〖mm〗^2, 7/0.85 diameter, Current rating 37Amp, 450/750Volt.

Cable size=Cable lug

Download PDF

Three-phase induction motor connection experiment

380V 5.5HP Y2 Series Three Phase Asynchronous Electric Motor

Experiment of Motor connection.

Motor Type:- 380V 5.5HP Y2 Series Three Phase Asynchronous Electric Motor

Basic Info      
Model NO. Y2-112M-2 4KW 5.5HP 2914RPM Number of Poles 2
Starting Mode y-δ Starting Certification ISO9001, CCC
Brand Tongbo Rated Frequency 50Hz, 60Hz
Rated Voltage 380V or Any Voltage Between 220V-760V Protection Class IP44, IP54, IP55
Cooling Method IC0141 Duty S1(Continuous)
Trademark TONGBO Transport Package Carton Box
Origin Fujian, China HS Code 8501520000

 

 

Rated Current calculation

 P=√3VIcosθ 

 I=4103/(√3×380)

 Reted Current   =6.233Amp

 =7Amp

 

 

 

Molded Case Circuit Breaker (MCCB) Selection.

Circuit Breaker Rated Current:-Multi 9 – N40N – MCB – 3P + N – 10 A – C Curve – 415 V – 10 kA

Molded Case Circuit Breaker (MCCB)

 Component type Miniature circuit breaker
range Multi 9
poles type 3 poles
Line Rated Current 10 A 122 °F (50 °C) EN/IEC 60947-2
Supply type AC
trip unit technology Thermal-magnetic
frequency 50/60 Hz
Operational voltage 415 V AC
local signalling ON/OFF indication
limitation class 3 EN/IEC 60947-2

Go to ➡ Circuit Breaker website

 

Magmatic contactor selection.Magmatic contactor selection

 Component type Contactor
NEMA size 00
Control circuit voltage 480 V AC
Auxiliary contact composition 1 NO + 1 NC
poles 3p
Line Rated Current 9 A
Operational voltage 600 V AC

Go to Magmatic contactor selection

 

Overload Relay selection.

Overload Relay selection

Component type Non differential thermal overload relay
Relay application Motor protection
Thermal protection adjustment range 7…10 A
Rated insulation voltage Power circuit 600 V CSA
Frequency 0…..400Hz
Temperature compensation – 4….140 °F  (-20….60 °C)
Control type Red push-button stop – Blue push-button reset

 

 

Connections.

Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible without cable end
Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible with the cable end
Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) solid without cable end
Power circuit screw clamp terminals 1 0.00…0.02 in² (1.5…10 mm²) flexible and without cable end
Power circuit screw clamp terminals 1 0.00…0.01 in² (1…4 mm²) flexible with the cable end
Power circuit screw clamp terminals 1 0.00…0.01 in² (1…6 mm²) solid without the cable end

Go to ➡ Overload Relay selection

Cable selection

………………………..

DesignSpark Electrical Software Free Download

Designspark electrical free download

DesignSpark Free Download.

DesignSpark Electrical is an Electrical CAD tool that approves electrical designers and automation engineers to shortly and precisely graph and modify electrical systems.

✔️Designspark Download CAD 64bit-32bit.

✔️DesignSpark Download PCB 64bit-32bit.

 

Designspark electrical free downloadIt is accessible at no cost to download from Designspark and gives the capability to create synoptic/single line diagrams, schematics and 2D panel layouts with access to an indispensable parts library, live fee and availability data and the option to buy by using linking your Bill of Materials directly from the graph interface to the RS online website.

✓✓✓ Software Install Process.

First Download The software (EXE), Create a free account than This is online software. On the exe Click the mouse right button and run the

DesignSpark Electrical installer (EXE).

Step by step continue…….

 

The working life of electrical designers is filled with many challenges. RS Components, through their DesignSpark Programme, have researched and analyzed those challenges and are now providing a solution. Following the huge success of their free CAD solutions for PCB design and 3D solid modeling, this latest solution will support the design process for electrical engineers around the world. The barriers to the acquisition of electrical CAD have been removed giving access to fast and accurate design to every engineer.

 

During this session, attendees learned
  • The need for Electrical CAD
  • The reasons why many electrical designers do not have access to it
  • The unsuitable design solutions many engineers are forced to use
  • What RS are offering as a free powerful electrical CAD solution
  • The key features and benefits of this solution

About RS Components.
RS Components and Allied Electronics are the buying and selling manufacturers of Electrocomponents plc, the world distributor for engineers. With operations in 32 countries, we provide more than 500,000 merchandise through the internet, catalogs and at trade counters to over one million customers, transport around 44,000 parcels a day. Our products, sourced from 2,500 main suppliers, include digital components, electrical, automation and control, and test and size equipment, and engineering equipment and consumables. Electrocomponents is listed on the London Stock Exchange
Information Collection now visits the internet site at www.rs-online.com.

About Trace Software.
Trace software as an electrical software professional on account that 1987, offers effective software program options to calculate and design electrical and automation projects, below the philosophy of an easy-to-use person interface that improves customers’ engineering, bettering productiveness in a quick period of time. Among the most splendid industries are the usage of Trace Software solutions. We might also locate desktop and panel builders, preservation engineers or electrical designers.

Hydro Electric Power Plant

Hydro Electric Storage Reservoir

ELEMENTS OF HYDRO-ELECTRIC POWER PLANT

A hydro-electric plant consists of a reservoir for storage of water, a diversion dam, an intake structure for controlling and regulating the flow of water, a conduit system to carry the water from the intake to the water wheel, the turbines coupled with generators, the draft tube for conveying water from water wheel to the tailrace, the tailrace and a powerhouse 1.e. the building to contain the turbines, generators, the accessories and other miscellaneous items. The size, location, and type of each of these essential elements depend upon the topography and geological conditions and the amount of water to be used.

 

The height to which the dam may be built is usually limited by the extent of flowage damage. Pondage can also have a remarkable value, in particular for peak load energy plants, warranting the purchase of widespread flowage rights. The spillway section of the dam must be long enough to pass safely the maximum amount of water to be expected. Likewise, the abutments and other short structures must be built to withstand successfully the greatest freshet conceivable on the river

 

The components of the Hydro Power house.

✓✓ Flowing streams

✓✓ Water head 

✓✓ Water holding capacity

✓✓ Water pressure 

✓✓ Catchment area

✓✓  Spillway

✓✓ Reservoir (water storage)

✓✓ Dam

✓✓ Penstock

✓✓ Surge tank

 

Hydroelectric power plant equipment

✓✓ Water turban

✓✓ Alternator

✓✓ Generator

✓✓ Governor 

✓✓ Gate valve

✓✓ Relief Valve

✓✓Air duct

✓✓ Flow measurement equipment

✓✓ Water circulating pump

✓✓ water circuit breaker

✓✓ Transformer

✓✓ Switch board equipment

✓✓ Reactor

✓✓ Low and high tension busbar

✓✓ Storage batteries

✓✓ Crane

✓✓ Outgoing connection

✓✓ Shops and offices 

 

 Storage Reservoir.

It is the basic requirement of a hydro-electric plant. Its purpose is to store water during excess flow periods (i.e. rainy season) and supply the same during lean flow periods (i.e. dry season) and thus it helps in supplying water to the turbines according to the load on the power plant. A reservoir can be either natural or artificial. A herbal reservoir is a lake in high mountains and an artificial reservoir is made by constructing a dam throughout the river. Low head plants require a very large storage reservoir. The capacity of the reservoir depends on the difference between run-offs during high and lean flows.

 

Hydro Power plant

Dam.
The function of a dam is not only to raise the water surface of the stream to create an artificial head but also to provide the pondage, storage or the facility of diversion into conduits. A dam is the most expensive and important part of a hydro-project. Dams are built of concrete or stone masonary, earth or rock fill earth or rock fill. The type and arrangement depending upon the topography of the site. A masonary dam may be built in a narrow canyon. An earth dam may be best suited for a wide valley. The choice of the dam also depends upon the foundation conditions, local materials, and transportation available, the occurrence of earthquakes and other hazards.

 

Mansory dams are of three major classes viz solid gravity, buttress, and the arch dams.
Sold gravity dam shown in fig. 2.6 (a), is made of concrete and is suitable for most sites. The height of the dam, which cannot be very high, depends on the Arch dam, shown in fig. 2.6 (b) is a curved dam and transmits a major portion of its water pressure horizontally to the abutments by arch action. An arch dam is preferred where a narrow canyon width is available. This dam has inherent stability against sliding.

 

The buttress or deck dam has an inclined upstream face, so that water pressure creates a massive downward force that presents balance against overturning or sliding. Such a dam is more suitable for weak foundations and earthquake-prone sites. An earth dam has a very wide base as compared to its height. Such dams are quite suitable for a pervious foundation because the wide base provides a long seepage path. The earth dams have got the following advantages.