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3. TRANSPORTATION 

Distribution transformers are shipped completely sealed. Core and coils are assembled in a 
tank with the insulating liquid covering the coils.  

This method of construction preserves the quality of insulation, the cooling and insulating 
liquid by preventing contamination from external sources.

3.1 TRANSPORTATION BY TRUCK

The transformers must be tightly secured at the top and bottom on the truck. At the bottom 
by nailing down the base for the rollers or carriage. Fixed rollers should be clamped. The top 
of the transformer must be tightly secured via the lifting lugs or via special transport clamping 
lugs. If securing straps are used, make sure they do not pull on the lips or lip reinforcements. 

2. IMPORTANT SAFETY INFORMATION

Certain information in this manual is marked with the words 

DANGER, WARNING

 or 

CAUTION. DANGER

 indicates an imminently hazardous situation which, if not avoided, will 

result in death, serious personnel injury and property damage.

WARNING

 indicates a potentially hazardous situation which, if not avoided, could result 

in death, serious personnel injury, and property damage. 

CAUTION

 indicates a potentially 

hazardous situation which, if not avoided, may result in minor or moderate personnel injury 
and property damage.

Personnel should not attempt to service this equipment until it has been completely de-
energized and all high-voltage and low-voltage bushing terminals have been properly earthed.

Only qualified personnel should install, maintain and operate this equipment. Qualified 
personnel are those who are trained in the installation, maintenance and operation of high-
voltage equipment; trained in the proper use of personal protective equipments (such as 
rubber gloves, safety glasses, protective clothing, hard hats, etc.) and trained in appropriate 
first aid procedures.

Ulusoy Distribution Transformers Maintenance, Operation, Installation and Instruction Manual

Summary of Contents for Ulusoy

Page 1: ...Ulusoy Distribution Transformers Maintenance Operation Installation and Instruction Manual www eaton com...

Page 2: ...ary assistance to the maintenance personnel to facilitate a periodic inspection of the transformer and to indicate the steps that they should follow to effect a more detailed examination of the active...

Page 3: ...n imminently hazardous situation which if not avoided will result in death serious personnel injury and property damage WARNING indicates a potentially hazardous situation which if not avoided could r...

Page 4: ...an be used to lift the entire equipment Under no circumstances may moisture be allowed to penetrate into the transformer For hermetically sealed transformers both those with gas cushions and those wit...

Page 5: ...HV or low voltage LV insulators to guide the transformer when moving it During the transport or the handling it is recommended to use only the special lifting eyes and tow attachments Angle between t...

Page 6: ...of individual pieces WARNING Unless indicated otherwise storage temperature must be between 25C and 50C Monitoring and checking the transformers during storage Preferably only fully assembled liquid f...

Page 7: ...nical Connections Decide and choose the cable cross section according to the system current and voltage Be sure that the surfaces are clean Dirty surfaces may cause isolation and contact problems 6 IN...

Page 8: ...and nut in 8 8 steel C Cover frame Bolt and nut in stainless steel pitch 60mm cork gasket pitch 90mm nbr gasket D Busbar bushings Fixing on cover Top piece onto bottom piece 5 4 6Nm 20 25Nm 20 25Nm 8...

Page 9: ...2 Table 2 Outdoor Electrical Clearance Un H V side voltage of rated level All clearances are in mm Electrical clearances are given for 1000m After 1000m till 3000m each 100m distance must be increase...

Page 10: ...pecifications should be added Oil leakage must be prevented with proper procedure If transformer is hermetically sealed the manufacturer should be informed as soon as possible Dehydrating breather sho...

Page 11: ...3 5 Years Conservation Tank Oil Leakage Every 2 Years Annually Oil Oil Dielectric Test All periodical controls are listed as a table below Table 3 Periodical Check Pressure relief device T 10 must ne...

Page 12: ...w Oil Sample Desired Value New Oil Filling Transformer Oil Sample Desired Value Oil Sample From Operating Transformer Proper Must Be Removed Pcb Analysis ASTM D 4059 ppm NA NA 50 50 Test Name Method U...

Page 13: ...sformers Current transformer Winding temperature indicator With and without contact thermometer 8 ACCESSORIES 8 1 STANDARD COMPONENTS AND ACCESSORIES Rating plate HV porcelain bushing LV porcelain bus...

Page 14: ...sampling of gases and of oil from oil filled electrical equipment and for the analysis of free and dissolved gases IEC 60599 Mineral oil impregnated electrical equipment in service Guide to the inter...

Page 15: ...about the surface protection quality paint of the transformer 7 Is there any oil leakage on the transformer Invalid for dry type distribution transformers 8 Is there any conspicuous point at which you...

Page 16: ...90 312 502 06 63 Eaton s mission is to improve the quality of life and the environment through the use of power management technologies and services We provide sustainable solutions that help our cust...

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