Technical data
26
ESD / EST Series
The voltage regulator has become an essential tool for the mobile installations with voltage variations problems. Taking into account the almost systematic presence of equipment such
as computers, lighting controllers, etc, voltage regulators are the safest tool to keep the equipment save from sudden voltage changes. This eect is even more accentuated when the
voltage is supplied from a mobile supply unit (generators, etc), because its current is not stable.
WORK Pro presents, to t users’ needs, a comprehensive series, from EST 1K to the powerful ESD 10K. These stabilizers cover dierent power requirements of dierent kind of installa-
tions and ensure the good condition of the devices.The implemented system works as follows:
When the main power reaches the variable transformer, the control system measures the voltage and the present current at the output.To exceed a certain threshold, the output relay is
activated, thus protecting system.Thanks to the sample voltage, it acts on the variation of the transformation ratio, still maintaining the output voltage within the dened value.The control
system presents all the data about the input and output voltage via an LCD display. The main power reaches the variable transformer (as long as the system is capable of changing the
transformation ratio between primary and secondary). The control system based on microprocessor is responsible for sampling the output current and voltage.
If the output current exceeds a certain threshold, the operating system is protected through the output relay. The other sample, the voltage, is used to act at any moment upon the va-
riation system transformation ratio by allowing the output voltage to remain xed at the set value.
voltage regulators
ESD 10 K
EST 1K
EST 2K
EST 519/2
ESD 5 K/2
voltage regulators