POZ-EŽ Control Panel
POZ-EŽ is a universal controlling LV-switchgear for a central and remote control of section disconnectors of overhead contact line of any power supply system or of a similar equipment. Section disconnectors must be equipped with electro-motoric drives type MPP2000/200i. It is a type product , which has been designed, manufactured and type tested at EŽ Praha a.s.
POZ-EŽ is equipped with a color contact panel enabling the comfortable remote control of the section disconnectors.
POZ-EŽ is delivered, depending on a number of controlled section disconnectors, in variants 8, 16, 24, and 32. The dimensions and weights of the individual variants are stated in the table below.
|Type (POZ EŽ)||Height x depth x width [mm]||Number of controlled disconnectors|
|POZ 8 EŽ||700 x 260 x 460||1 ÷ 8|
|POZ 16 EŽ||700 x 360 x 590||9 ÷ 16|
|POZ 24 EŽ||700 x 360 x 590||17 ÷ 24|
|POZ 32 EŽ||700 x 360 x 590||25 ÷ 32|
POZ EŽ consists of a thermoplastic distribution board, with a mounting board in the back part and a door in the front part. Behind the transparent door there is a cover board through which a touch panel and „remote“/“centrally“ switch lead. The touch panel enables controlling outdoor section disconnectors – when switched to „remote“ position it acts as a remote control. In this mode central (dispatching) control of section disconnectors is blocked. Behind the cover board there is a PLC and LV electric equipment.
An integral part of POZ EŽ is also a communication interface RS 485, or ethernet, for the connection to the superior control system. The data transmission to the superior control system is realized by a metal or optical cable. In case of metal a sectioning converter is installed in POZ EŽ.
Communication with the superior system is possible through the following protocols:
- EN 60870-5-101 (IEC 60870-5-101)
- EN 60870-5-104 (IEC 60870-5-104)