UZO - insulating oil treatment unit

UZO 3000/6500 stationary unit	UZO 3000/6500 mobile unit	UZO 1000/2000 stationary unit

Application

• treatment of transformer oil in one or several cycles,
• drying of electrical equipment by hot oil recirculation,
• treatment of transformer oil in working transformers.

The treatment process eliminates the following contaminations of the oil:

• solid contaminants,
• dissolved water,
• dissolved gases.

Filtration

Coarse contaminations are removed by the preliminary filter at the oil inlet. Fine filtration is provided by easily replaceable cartridges in the second filter.

Degassing and dewatering

Firstly the oil is heated to the adjustable temperature by an electric heater and then is pumped into a degassing tank held under vacuum. Gas and water escaped and evaporated from the oil are removed by a vacuum pump. Special system located at the upper part of the vacuum chamber ensures efficient degassing and exellent final oil properties.

Specification	UZO 250/500	UZO 500/1000	UZO 1000/2000	UZO 2000/4000	UZO 3000/6500
Nominal capacity	250l/h	500l/h	1000l/h	2000l/h	3000l/h
Nominal capacity at the closed drying cycle of a transformer	500l/h	1000l/h	2000l/h	4000l/h	6500l/h
Residual moisture content - after 1 pass - after 3 pass	<10ppm <5ppm	<10ppm <5ppm	<10ppm <5ppm	<10ppm <5ppm	<10ppm <5ppm
Residual gas content - after 1 pass - after 3 pass	<1Vol% <0,5Vol%	<1Vol% <0,5Vol%	<1Vol% <0,5Vol%	<1Vol% <0,5Vol%	<0,5Vol% <0,2Vol%
Ultimate vacuum	< 1mbar	< 1mbar	< 1mbar	< 1mbar	< 0,2mbar
Filter fineness approx.	3mm	3mm	3mm	3mm	3mm
Overall dimensions Width Lenght Height	980 mm 1360 mm 1900 mm	1000 mm 1380 mm 1900 mm	1270 mm 1860 mm 1960 mm	1270 mm 1860 mm 1960 mm	1480 mm 2250 mm 1950 mm
Weight	350 kg	420 kg	450 kg	1300 kg	2100 kg
Flow diagram	Rys. 1	Rys. 1	Rys. 2	Rys. 2	Rys. 3

Design and operation

Reference list of UZO units

Customer		Capacity [l/godz.]	Year of manufakturing
ZWMEiT	Żychlin	1500/3000	1990
Politechnika Łódzka	Łódź	250	1992
AEG „Mefta” (ALSTOM)	Mikołów	3000/6000	1994
Będziński Zakład Energetyczny	Będzin	3000/6000	1996
Zakład Elektrod Węglowych	Racibórz	1000/2000	1997
„Elektrobud”	Katowice	250/500	1998
ZWMEiT „Emit”	Żychlin	1500/3000	1998
INVENT	Lublin	500/1000	1999
ABB Elta	Łódź	3000/6000	2000
Energetyka Beskidska	Bielsko-Biała	1000/2000	2002
„ENERGA” Gdańska Kompania Energetyczna	Gdańsk	1000/2000	2002
Elektrownia Bełchatów	Bełchatów	3000/6500	2002
Przedsiebiorstwo Instalacyjne NIKOT	Białystok	500/1000	2003
EnergiaPrio	Jelenia Góra	1000/2000	2010

download file .pdf