Ormazabal velatia transforma.organic General Instructions Manual Download | Manualshive

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transforma

.organic

General Instructions

IG-234-EN, version 01; 30/12/2015

Electrical distribution transformers

immersed in biodegradable natural dielectric liquid up to

2500 kVA

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Summary of Contents for velatia transforma.organic

Page 1: ...transforma organic General Instructions IG 234 EN version 01 30 12 2015 Electrical distribution transformers immersed in biodegradable natural dielectric liquid up to 2500 kVA ...

Page 2: ...ed 10th November and its update in accordance with Royal Decree 54 2003 The above must be carefully observed as the correct and safe operation of this equipment depends not only on its design but also on general circumstances which are in general beyond the control and responsibility of the manufacturer More specifically The equipment must be handled and transported appropriately from the factory ...

Page 3: ...port on rollers 6 3 Storage 7 4 Installation 8 4 1 Receipt of the transformer 8 4 2 Location of the transformer 8 4 3 Transformer electrical connections 9 4 3 1 Standard procedure 9 4 3 2 Special transformers for photovoltaic or wind applications 10 5 Commissioning 11 5 1 Transformer verification before commissioning 11 6 Maintenance 12 6 1 Access for maintenance operations 12 6 2 Regular maintena...

Page 4: ... high water saturation point which allows it to maintain high breakdown voltage values with a high water content High burn resistance natural ester dielectric is listed as K class fire point over 300 C according to Standard IEC 61100 This classification provides the possibility to avoid the installation of fixed fire extinguishing systems as set out in Technical Instruction ITC RAT 14 of the High ...

Page 5: ...ransforma organic IG 234 EN version 01 30 12 2015 Induced voltage test IEC 60076 3 1 1 2 Test protocol All the information regarding the tests the transforma organic has been put through is recorded in the Test Protocol enclosed with the transformer documentation ...

Page 6: ...ust be taken into account when completely hoisting the transformer The slings on the eyes must form a minimum angle of 60º with the transformer s horizontal The slings must not rub or damage the bushings or other accessories Fig 2 2 Elevation using a crane 2 3 Transport on rollers In order to move the transformer by means of its rollers lean a lever against the transformer carriage CAUTION Risk of...

Page 7: ...er in a place that is dry and clean If the transformer is equipped with plug in terminals make sure the conical protector provided for keeping the connection terminals clean and intact is in place CAUTION Due to the particular characteristics of natural esters at low temperatures it is best to avoid storing these transformers at temperatures below 5 ºC For this reason we recommend storing in indoo...

Page 8: ...eaking the seal cancels the transformer warranty as well as Ormazabal s liability If any anomaly is detected upon receipt of the transformer inform Ormazabal immediately If after a 15 day period the manufacturer has not received a report of anomalies or defects found it is assumed the transformer arrived in perfect conditions and Ormazabal will not be responsible for any future anomalies or their ...

Page 9: ...flexible connections which do not place any strain on the transformer bushings sufficiently sized to prevent excessive overheating and at the same time allow for the dilatations caused by heat without damaging the transformer DANGER Risk of death by electric shock and of irreversible damage to the transformer or to the electrical installation The transformer electrical connections can only be perf...

Page 10: ...ations Transformers to be connected in renewable energy power plants photovoltaic and wind must also take into account the following considerations in addition to those of conventional distribution transformers Transformers may be fitted with an internal electrostatic shield to mitigate the effects of disturbance associated to power electronics The electrostatic screen must have its connector bush...

Page 11: ...ensuring that the transformer temperature does not go over 105 ºC CAUTION Natural esters have higher freezing points than those of mineral oil The liquid may freeze during prolonged exposure to temperatures below 5 ºC The transformer can be powered in these cases although these situations should be avoided wherever possible DANGER Risk of death by electric shock and of irreversible damage to the t...

Page 12: ...ing device detail 6 2 Periodic maintenance It is recommended that the transformer undergoes a periodic visual inspection of the following aspects Water tightness check that the transformer does not leak dielectric liquid Cleaning check for proper cleanliness and care of the transformer Noise check that the transformer does not produce strange or untimely noises Risk of death The requirements set o...

Page 13: ...n repairs or modifications are required these operations must be performed by the manufacturer If a company other than the original manufacturer performs the repair or modification they must install a plate on the transformer indicating the modification or repair performed and the new characteristics of the transformer If someone other than the manufacturer handles and unseals the transformer the ...

Page 14: ... precautions are taken to protect personnel who normally or circumstantially work around it and that any persons not required for its operation are kept at a safe distance away from the transformer 7 2 Company registration certificate Company record sheet Nº ER 0227 1996 granted by AENOR EQ NET dated 23 5 1996 guarantees our Quality Assurance System from the design and development stage of the pro...

Page 15: ...r gasket loosening it could cause leakage of the dielectric liquid Tab 8 1 Recommended Tightening Torque Nm Metric Size M10 Low voltage LV Connection between nuts 15 20 70 100 250 350 25 35 40 60 25 35 40 70 100 150 LV busbar connections steel screw and nut 45 60 65 85 95 130 10 15 M12 M16 M20 M30 Wrench Size 17 19 24 30 46 Fastening the palms to the pin stainless steel screws Screws to the surfac...

Page 16: ...Subject to change without prior notice For further information contact Ormazabal Ormazabal Cotradis Transformadores S L U 28890 Loeches Madrid Spain www ormazabal com ...

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