general information
Generator
The MQ Power Model SG1400C3 is a 200kVA studio generator that is designed as a high quality power source for entertainment and studio applications.
In keeping with Multiquip's policy of constantly improving its products, the specifications quoted herein are subject to change without prior notice.
Permanent Magnet Generator Excitation System
The SG1400C3 generator is equipped with a PMG (Permanent Magnet Generator) generator end. The excitation system provides a minimum short circuit support current of 300% of the standby rating for 10 seconds at 60 Hz, and approximately 275% at 50 Hz.
Both the PMG and the exciter are mounted outboard of the bearing for ease of maintenance. The rotating brushless exciter features hermetically sealed diodes for
Engine
This generator is powered by a
Principle Of Operation
This generator is a brushless,
The generator's exciter consists of a stationary field and a rotating armature. The stationary field (exciter stator) is designed to be the primary source of the generator's residual magnetism. This residual magnetism allows the exciter rotor (armature) to produce AC voltage even when the exciter stator (field) is not powered. This AC voltage is rectified to DC by the rotating rectifier assembly and fed directly to the main rotor (field). As the generator
shaft continues to rotate, the main rotor (field) induces a voltage into the generator's main stator (armature). At rated speed, the main stator's voltage produced by the residual magnetism of the exciter allows the automatic voltage regulator to function.
The regulator provides voltage to the exciter resulting in a
Voltage Regulation
In the standard configuration (shunt excited), the automatic voltage regulator receives both its input power and voltage sensing from the generator's output terminals.The regulator automatically monitors the generator's output voltage against an internal reference set point and provides the necessary DC output voltage to the exciter field required to maintain constant generator terminal voltage. The generator's terminal voltage is changed by adjusting the regulator's reference set point.
Electronic Governor System
The electronic governor system controls the RPMs of the engine. When the engine demand increases or decreases, the governor system regulates the frequency variation to
±0.25%.
Battery
The battery system is located in the engine compartment on the
Exhaust System
The exhaust system is located above the diesel engine.The exhaust system is comprised of rigid and flexible tubing, a silencer, and a
page 16 — SG1400C3 Studio Generator • operation manual — rev. #0 (10/05/11)
