Teste cunoştinţe

Testaţi-vă cunoştinţele

Electromagnetic conversion
	Magnetic and electromagnetic circuits
	The modeling of a speaker
	Variable reluctance machine

Rotating field machines
Principles
	Rotating field
	Realization of a sinusoidal winding

Synchronous machine
	Parameters measuring
	Autonomous operation
	Grid connection
	Voltage adjustment

Asynchronous machine
Realization and operation principles
	Realization
	Operation
Setting in equation
	General equations, equivalent diagrams
	Measurement of the equivalent diagram parameters
	Dynamic regime - Park transformation
Operation characteristics
	Eficiency and power factor
	Mechanical characteristics
	Determining the mechanical characteristics
Starting, speed adjustment and braking
	Starting
	Speed adjustment
	Braking
	Applications of the command methods
U/f command
	Principle
	Speed adjustment
Vectorial command
	Principle
	Influence of the inverter type
	The influence of parameters' changes
Direct Torque Control
	Principle
	Speed adjustment

Tests
	General theory
	Rotating field
	Synchronous machine
	DC machine

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Last update: 2005, September, 30 | Translation: Sergiu Ivanov | Realization: Florin Ravigan , Cristian Vladu