ZD series industrial use separately excited brushed 1 hp dc
electric motorRecommendation Product
DescriptionPowerAmature VoltExcited VoltTorqueCurrentDutyExcited
Method1HP200V220V4 NM4AS1Separately ExcitationCompany ProfileFAQ01
About the noise of the motorThe noise of the motor is divided into
mechanical noise, electromagnetic noise and ventilation noise.
According to the generation mechanism of vibration and noise, we
can also classify the vibration of the motor correspondingly, but
in most cases, noise and vibration are a comprehensive
Performance.Electromagnetic noise is a kind of noise generated by
the magnetic field pulsation in the motor gap, which causes the
vibration of the stator, rotor and the entire motor structure. Its
value depends on the electromagnetic load and the design parameters
of the motor. Electromagnetic noise is mainly structural noise,
which is divided into constant electromagnetic noise and
load-related magnetic noise. Electromagnetic noise has
high-frequency screaming and low-frequency booming.Mechanical noise
is the noise caused by friction, impact, unbalance and structural
resonance of the running part of the motor. There are many types of
noise caused by mechanical reasons, and they are also very complex.
Noise sources mainly include self-noise sources, load-induced noise
sources, and mechanical noise sources of auxiliary components. It
comes down to the problems of processing technology, processing
accuracy, and assembly quality. Generally produced by brushes and
commutators, bearings, rotors, ventilation systems, etc. Mechanical
noise can generally be summarized as noise around brushes (only for
brushed motors), bearing noise, fan noise, load noise, etc.Judging
the type of noise adopts the method of cutting off the power
supply. Using the characteristics of electromagnetic noise that
changes with the strength of the magnetic field, the magnitude of
the load current and the level of the speed, the power is suddenly
cut off after listening to the motor running at no-load for a
period of time. With the power cut off, part of the noise will
disappear immediately, this is electromagnetic noise. After a power
failure, the noise generated by the motor continuing to run by
inertia is mechanical noise and ventilation noise. /* January
22, 2024 19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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