Tutorial: Mechanic - electrician Topic:Basics of electrical engineering the 2nd. year Basic characteristics of electric appliances Prepared by: Škarka.

Slides:

Advertisements

Similar presentations

Tutorial: Mechanic – electrician Topic: Electronics II. class Operational Amplifiers: Non-Inverting Amplifiers – Part 2 – Derivations Prepared by: Ing.

Advertisements

Educational program: Mechanic – electrician Program title: Technical training II. class Correction amplifier Worked out: Bc. Chumchal Miroslav Projekt.

Training program: Mechanic - electrotechnician Program name: Digital processing - microprocessors III. class Microcontrollers Elaborated by: Vlastimil.

Educational program: Mechanic - electrician Title of program: Technical training II. class Monostable multivibrator Worked out: Bc. Chumchal Miroslav.

Training program: Mechanic - electrotechnician Program name: Digital processing - microprocessors III. class Microcontrollers Elaborated by: Vlastimil.

Tutorial: Engineering technology Topic: Shaft pins Prepared by: Ing. Jaroslav Hábl Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je.

Educational program: Mechanic - electrician Title of program: Technical training II. class The loudspeakers Worked out: Bc. Chumchal Miroslav Projekt.

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Engineering technology Topic: Continuous /progressive casting Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. year Measuring system 2 Prepared by: Ing. Jiří Smílek Projekt Anglicky.

Tutorial: Engineering technology Topic: Drive shafts Prepared by: Ing. Jaroslav Hábl Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je.

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Engineering technology Topic: Casting – basic definitions Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Educational program: Mechanic - electrician Title of program: Technical training II. class Oscillators Worked out: Bc. Chumchal Miroslav Projekt Anglicky.

Tutorial: Engineering technology Topic: Welding with MAG system Prepared by: Ing. Josef Martinák st. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Mechanic - electrician Topic: Technical training II. class Printed circuit boards 1 Prepared by: Melichařík Lubomír Projekt Anglicky v odborných.

Tutorial: Engineering technology Topic: Pressed and plunger connections Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Mechanic – electrician Topic: Electronics II. class RC Filters: RC High Pass Filter Prepared by: Ing. Jaroslav Bernkopf AVOP-ELEKTRO-Ber-008.

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Engineering technology Topic: Metal welding – stainless steel, aluminium, zinc coated materials Prepared by: Ing. Josef Martinák st. Projekt.

Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – condenser Prepared by: Melichařík Lubomír Projekt Anglicky v.

Tutorial: Mechanic - electrician Topic: Technical training II. class Semiconductor devices 2 Prepared by: Melichařík Lubomír Projekt Anglicky v odborných.

Chapter : 7 : Mains Electricity

Tutorial: Engineering technology Topic: Roller bearings Prepared by: Ing. Jaroslav Hábl Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Educational program: Mechanic - electrician Title of program: Technical training II. class The loudspeaker as a load of the amplifier Worked out: Bc.

Lesson.5: Fuses and Safe Plugs

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. year Measurement of resistance Prepared by: Ing. Jiří Smílek Projekt.

Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – coils Prepared by: Melichařík Lubomír Projekt Anglicky v odborných.

Tutorial: Mechanic - electrician Topic: Technical training II. class Passive components – transformers Prepared by: Melichařík Lubomír Projekt Anglicky.

Tutorial: Mechanic - electrician Topic: Technical training II. class Transistors 2 Prepared by: Melichařík Lubomír Projekt Anglicky v odborných předmětech,

Electrical Safety 2: Checking Answers Fuse. Electrical Safety 2: Checking Answers Fuse Melts if too much current flows Protects against overloads and.

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. year Three-phase current Fuse Prepared by: Škarka Miloš Projekt Anglicky.

Tutorial: Mechanic – electrician Topic: Electronics II. class Operational Amplifiers: Inverting Amplifiers – Part 2 – Derivations Prepared by: Ing. Jaroslav.

Tutorial:Mechanic - electrician Topic:Basics of electrical engineering the 2nd. year Protection in electric networks Protection of inanimate parts Prepared.

Educational program: Mechanic - electrician Title of program: Technical training II. class The powerful amplifiers Worked out: Bc. Chumchal Miroslav Projekt.

Tutorial: Obchodní akademie Topic: Spreadsheet Environment, Basic Operations Prepared by: Mgr. Zdeněk Hrdina Projekt Anglicky v odborných předmětech,

Class exercise 1 Find the equivalent resistance of the following circuit.

Tutorial: Mechanic - electrician Topic: Technical training II. class Transistors 3 Prepared by: Melichařík Lubomír Projekt Anglicky v odborných předmětech,

Tutorial: Engineering technology Topic: Castings defects Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. year Three-phase current, electrification system Prepared by: Škarka.

Tutorial: Mechanic - electrician Topic: Fundamentals of electrical engineering the 2nd. year, RCD Prepared by : Škarka Miloš Projekt Anglicky v odborných.

Tutoria: Engineering technology Topic: Chain gears Prepared by: Ing. Jaroslav Hábl Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je.

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. Year Three-phase current Prepared by: Škarka Miloš Projekt Anglicky.

Tutorial: Mechanic - electrician Topic: Electronics II. Class Operational Amplifiers: Comparators – Part 1 - Basics Prepared by: Ing. Jaroslav Bernkopf.

Tutorial: Mechanic - electrician Topic: Electric measurement the 2nd. Year Measuring devices 3 Prepared by: Ing. Jiří Smílek Projekt Anglicky v odborných.

Výukový program: Mechanik - elektrotechnik Název programu: Základy elektrotechniky II.ročník, základní charakteristiky elektrických zařízení Vypracoval.

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky. Tutorial:

Tutorial: Mechanic - electrician Topic: Technical training II. class Transistors 1 Prepared by: Melichařík Lubomír Projekt Anglicky v odborných předmětech,

Tutorial: Mechanic – electrician Topic: Electronics II. class Operational Amplifiers - Basics Prepared by: Ing. Jaroslav Bernkopf AVOP-ELEKTRO-Ber-001.

Tutorial: Mechanic – electrician Topic: Electronics II. class Operational Amplifiers: Non-Inverting Amplifiers – Part 1 - Equations Prepared by: Ing.

Electricity and Electromagnetism Review

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky. Educational.

Tutorial: Engineering technology Topic: Hot forming Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován.

Tutorial: Mechanic – electrician Topic: Electronics II. class Operational Amplifiers: Integrator Prepared by: Ing. Jaroslav Bernkopf AVOP-ELEKTRO-Ber-006.

Tutorial: Mechanic - electrician Topic: Basics of electrical engineering the 2nd. year Protection in electric networks Prepared by: Škarka Miloš Projekt.

Training program: Mechanic - electrotechnician Program name: Digital processing - microprocessors III. class Microcontrollers Elaborated by: Vlastimil.

Tutorial: Engineering technology Topic: Resistance welding Prepared by: Ing. Josef Martinák st. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Tutorial: Mechanic – electrician Topic: Electronics II.class Operational Amplifiers: Inverting Amplifiers – Part 1 - Equations Prepared by: Ing. Jaroslav.

Tutorial: Mechanic -electrician Topic: Electronics II. class Transistors: Transistor CE Amplifier Prepared by: Ing. Jaroslav Bernkopf Projekt Anglicky.

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

4.0 DOMESTIC ELECTRICITY Domestic electricity is that electricity which is supplied to homes under specific conditions of current and voltage. Voltage,

PROTECTION AGAINST INDIRECT CONTACT

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/

Domestic Electricity AIM: To understand the use of domestic electricity and safety features such as fuses, circuit breakers and the earth circuit

Presentation transcript:

Tutorial: Mechanic - electrician Topic:Basics of electrical engineering the 2nd. year Basic characteristics of electric appliances Prepared by: Škarka Miloš Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

Appliance classes are determined by the way of providing protection against dangerous contact in case of a malfunction of a device. Possible ways of connection are determined according to usage of an appliance (immovable or movable). Only such conductors can be connected to an appliance (L, N, PE) corresponding to clamps on an appliance. If there is an additional appliance adjustment carried out, it has to be visibly marked on connection spots (for example the discarding of the PE clamp, while using the protection by the nonconductive environment). Movable appliances are meant for moving (carrying). If such an appliance isn‘t meant to be hold in hand, it mustn't be moved (carried) while switched on.

 Appliances have a working insulation and are equipped with a protection clamp or a protective contact. These are: washing machine, oven, iron, computer,...  Protection class II. Appliances have double or reinforced insulation and don‘t have (mustn‘t have) a protection clamp. Their whole surface is made of insulating material or they can have some parts made of metal, but always insulated with the reinforced insulation. These are: Shaver, hairdryer, power drill, grinder...  Protection class III. Appliances are connected to low voltage, so to SELV and PELV networks: These are: Low-volt bulbs, low-volt electric gardening, healthcare or agriculture appliances...

Class of a device device marking or manuals Conditions for device connection to an installation Protection class 0 Use only in the nonconductive environment or protected by the electric separation electric separation carried out individually for each device Protection class 1 Protective clamp marking or by letters PE or by the color combination green-yellow Connection of this clamp to the protective installation connection Protection class 2 Marking by signnot relying on any protective installation measures Protection class 3 Marking by signconnection only to SELV or PELV networks

The protection against the dangerous contact via reset. The conductor PE(PEN) is connected to the conductive casing of the device. Animate parts are separated from the casing by the working insulation. We control the transitional resistance and the insulation state at this device. Immovable appliance connected in the TN-S network. Immovable appliance connected in the TN-C network. Movable appliance for connecting into the socket. Three-phase One-phase

Protection against dangerous contact via double insulation. Surface of an appliance should be made of an insulant. Potential metal parts have to be separated from animate parts in a way equal to the double insulation (plastic gears, pulling bars etc.). This insulation barrier mustn't be violated in any regular device malfunction (for example during short circuit in the motor winding there can be no casing melting). These devices have this mark on the surface:

The immovable appliance connected in the TN-S network. This appliance mustn‘t be connected to the PE conductor. The immovable appliance connected in the TN-C network. If the appliance have the N clamp, it is connected to the PE conductor via conductor with a blue insulation color. Movable appliance connected to the plug. Line has to be permanently attached to the device. There mustn‘t be a clamp for connecting the PE conductor at the plug. Allowed combination of colors of the line is blue – black (brown) and black – brown. The line can‘t have the green-yellow color vein.

 Basic protection: voltage reducing;  Protection in case of a malfunction: the separation from other circuits;  Protection construction elements: powered by the source of low voltage by the SELV or PELV source separating the appliance from the network;  Type of protection sign: picture no. 3 on the label  Powering winding: two-vein;  Connecting plug: two-pole, designed impossible to connect into the 230 V/50 Hz network.  The appliance of the third class is recognizable by the atypical connecting plug of the network circuit. Even here it is needed to verify this assumption by checking the type sign.  The voltage source can be a battery, a safety transformer, but not an autotransformer (there is no galvanic separation)

 Appliance division into classes according to the protection  What is in the picture no. 1  What is in the picture no. 2 picture 1picture 2

 How many veins does the line for connection of the class I appliance have?  How many veins does the line for connection of the class II appliance have?  Why an autotransformer can‘t be used as a source to SELV?

 www. wikipedie.cz    diskuse.elektrika.cz