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Generators require direct current to energize its magnetic field. The DC field current is obtained from a separate source called an exciter. Either rotating or static-type exciters are used for AC power generation systems. There are two types of rotating exciters: brush and brushless. The primary difference between brush and brushless exciters is the method used to transfer the DC excditing current to the generator fields. Static excitation for the generator fields is provided in several forms including field-flash voltage from storage batteries and voltage from a system of solid-state components. DC generators are either separately excited or self-excited.

Products & Services
Electrical power generators transform mechanical energy into electrical energy, typically for backup or emergency power. Generators can produce either AC or DC power and are typically powered by a fuel engine. Search by Specification | Learn more about Electrical Power Generators
DC servomotors are generally small and powerful for their size, and easy to control. Common types of DC servomotors include brushless or gear motors. Search by Specification | Learn more about DC Servomotors
Comb generators create harmonic frequencies from which one frequency can be selected with a narrow filter and filtered out. Learn more about Comb Generators
Linear motors generate force only in the direction of travel. They are capable of extremely high speeds, quick acceleration, and accurate positioning. Search by Specification | Learn more about Linear Motors
Electrical field strength sensors are used to measure the strength of electrical fields. Learn more about Electrical Field Strength Sensors
Product Announcements
Performance Motion Devices, Inc. - ION® 3000 Digital Drive
The ION® Digital Drive product line now has power ranges of 500W and 3000W. This allows a wide range of motor types and sizes to be combined in multi-axes motion positioning applications when using... (read more)
Portescap - Portescap Brushless DC Motors
Portescap offers the broadest miniature and specialty motor product line in the industry, including Brushless DC technology. With speeds up to 1,000 rpm and Frame sizes from 12.7 mm (.5 in.) to 58 mm... (read more)
Bayside Motion / Trilogy Motors - Brands of Parker Hannifin Electromechanical - Two Wire Brushless Motor Series
The Two Wire brushless motor combines the improved performance of a brushless motor over a brush motor with a unique electronic module, allowing the motor to be controlled directly from a PWM "H"... (read more)
 
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REVIEW QUESTIONS The first nine questions test general understanding; questions 10 to 18 are numerical problems based mainly on the equivalent circuit; questions 19 to 26 are discursive questions... (Read More)
18.1 Introduction A generator is the heart of an electrical power system, as it converts mechanical energy into its electrical equivalent, which is further distributed at various voltages. It... (Read More)
A modern actively controlled motor drive is a system that combines a power-electronic circuit and a motor. The electronics in the drive system control the behavior of the mechanical shaft of the... (Read More)
See more product announcements for Electrical Power Generators
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Engine Exhaust Blankets
Firwin Corp.


Used Diesel Generators - 50kw to 3000kW

Used Diesel Generators - 50kw to 3000kW
Diesel Service & Supply, Inc.


GE 9 MW Continuous Dual Fuel Turbine

GE 9 MW Continuous Dual Fuel Turbine
Diesel Service & Supply, Inc.


11 See more product announcements for Electrical Power Generators