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Receivers of electrical energy:

Lecture



a) with irreversible processes of conversion of electrical energy into other types of energy:
Resistor, (the conductor's resistance to electric current), electrical energy is converted into heat.

Resistor symbol

  Receivers of electrical energy:

1-type device:
Р - constant, RP - variable, ТР - thermistor, etc.
2-material:
1 - non-wired, 2 - wire, etc.
3-ordinal development number
Example designation: P1-26 (fixed non-wired resistor).

The main parameters of resistors
nominal resistance and tolerance on the value of resistance
rated power
temperature coefficient of resistance
Values ​​of nominal resistances are selected from the series of resistances Е6, Е12, Е24, Е48, Е96, Е192

Incandescent lamp, electrical energy is converted into light, heat energy, etc.

  Receivers of electrical energy:

b) with reversible processes of electrical and magnetic energy conversion

A capacitor is an element of an electrical circuit,
intended to be used by him
electrical capacitance

Symbol Capacitors

  Receivers of electrical energy:

Capacitor, with capacity

C = q / u.

Capacity of a flat capacitor

  Receivers of electrical energy:

1-type device:

K- permanent, CT-trimmer, KP-variable;
2-digit, determining the type of dielectric (10-ceramic, 40-paper ...);
3-number development.
Example: K10-36 permanent capacitor ceramic

The main parameters of the capacitor
rated capacity
operating voltage
loss tangent
temperature coefficient of capacitance (TKE)

Inductor with inductance

  Receivers of electrical energy:

Auxiliary devices:

a) Switches that control the operation mode of the electrical circuit
b) Relay
c) fuses for protection against overvoltage or inadmissible current values.
d) Switches, switches.

Electrical Circuit Classification

Active:
Emf
Current source

Passive:
Linear: R, C, L
Nonlinear: diodes, zener diodes and d


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Electrical Engineering, Circuit design

Terms: Electrical Engineering, Circuit design