What is the function of the controller on a generator?
2023-05-08
The controller system monitors the operation of the engine and generator functions. Typical safety items include low oil pressure, high temperature,
engine start over-crank, over/under frequency (speed), low coolant level etc.
Most engine/generator controllers in use today are digital and designed to provide control over the generator. The controller system monitors the operation
of the engine and generator functions.
Typical safety items include low oil pressure, high temperature, engine start over-crank, over/under frequency (speed), low coolant level etc.
Modern digital controllers for residential or small business applications are typically a simplified LED indicators a start-stop button with or without auto-start.
If the generator has auto-start, the controller can be used to interface with an automatic transfer switch or inverter/battery system to start and stop automatically.
Usually manual controls are provided on al generators including those with auto-start. Advanced controllers provides real time monitoring of volts, hertz and amperage
in addition to the basic engine/generator safeties and auto-start functions. Complex controllers typically installed on larger generator systems provide engine safeties and
shutdowns for low oil pressure, high temperature, engine start over-crank, over/under-speed, low coolant level and also have indicators for low fuel level, KVA output,
KW output, power factor (PF), engine & generator gauges in real time. Larger generators often have a communication capability for remote monitoring and starting.
The controller is the brain part of the generator set, generally installed on the control box of the unit, which not only provides the engine startup, shutdown,
data measurement,data display and fault protection functions, but also provides the generator power measurement, power display and power protection functions.
Our company sells many brands of original and domestic alternative generator controllers, for example DSE series (DSE2157 DSE4620, DSE7320, DSE8610),
and Smartgen series HGM4010N HGN7220, HGM6120NC), AMF25. MSR10, Power Wizard 1.0 & 1.1, and so on.

Why is speed control of a generator important?
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