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FIELD OF INVENTION
The present invention relates to electrostatic precipitators used for pollution
control. More particularly the present invention relates to a process for testing
the functionality of the electrostic precipitator by adapting advanced simulation
technique.
BACKGROUND OF THE INVENTION
Electrostatic precipitators are pollution control equipments widely used in large
plants like thermal power plants, cement plants, steel plants and glass plants.
The electrostatic precipitaters are configured with number of fields which have
collecting and emitting electrodes, A high electric field is generated between the
electrodes to charge the dust particles and collect the charged particles on the
collecting electrodes. The high voltage is generated by means of a high voltage
transformer/ rectifier.
Each field is provided with atleast one high voltage transformer or rectifier and
the atleast one transformer or rectifier is controlled and monitored by a micro-
controller based controller, generally called electrostatic precipitator controller.
The electrostatic precipitator controller controls and monitors various electrical
parameters like current, average voltage, peak voltage and valley voltage and
alarm conditions of the high voltage transformer / rectifier.
Electrostatic precipitator controllers are tested for its functionally with the help of
simulators, which simulate the field conditions. Simulators simulate field signals
like current and voltage signals and alarm conditions using the conventional
analog and digital circuits. Often back corona condition occurs in the field, which

affect the performance of the electrostatic precipitetor. Back corona condition
can not be simulated with the conventional simulators.
OBJECTS OF THE INVENTION
It is art object of the invention to propose a process for testing the functionality
of the electrostic precipitator which uses simulator capable of simulating the back
corona conditions occurring in the field.
Another object of the invention is to propose a process for testing the
functionality of the electrostic precipitator which is capable of adapting digital
signal processing technique to simulate the back corona conditions,
A further object of the invention to propose a process for testing the functionality
of the electrostic precipitator which incorporates atleast one digital signal
processor in the simulator for adapting the digital signal technique.
SUMMARY OF THE INVENTION
Accordingly there is provided a process for testing the functionality of the
electrostatic precipitator used for pollution control which is capable of adapting
the advanced simulation technique, in particular a simulating technique capable
of simulating the back corona conditions occurring in the fields. The simulator is
thus provided with a digital signal process enabling a program product when
loaded and operated in a processor to simulate all the field signals including the
back corona conditions.