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LIB

transforma

.plur

Transformers with corrugated tank

and submerged in dielectric liquid

from 3150 kVA

General Instructions

IG-287-EN

, version 03, 24/07/2020

Содержание Ormazabal transforma.plur

Страница 1: ...LIB transforma plur Transformers with corrugated tank and submerged in dielectric liquid from 3150 kVA General Instructions IG 287 EN version 03 24 07 2020...

Страница 2: ...ectrical installations Personnel must be fully familiar with the instructions and warnings contained in this manual and in other recommendations of a more general nature which are applicable to the si...

Страница 3: ...ability 13 4 Storage 14 5 Installation 15 5 1 Receiving the transformer 15 5 2 Transformer site 16 5 3 Transformer electrical connections 16 5 3 1 Standard procedure 16 5 3 2 Special transformers with...

Страница 4: ...ation point which allows it to maintain high dielectric rigidity values with a high water content High fire resistance natural dielectric ester is classified as a K class liquid fire point 300 C accor...

Страница 5: ...azabal is not responsible for an unsuitable choice or use of such means 2 1 Lifting and moving by crane In order to lift and move the transformer by crane it must be taken into account that the liftin...

Страница 6: ...uid from 3150 kVA Figure 2 2 Detail of crane hook preparation in the eyebolts Figure 2 3 Detail of lifting a transformer by crane The following indications must be taken into account when completely h...

Страница 7: ...ements positioned at the top of the sides for transformers with eyebolts on the tank Figure 2 5 Figure 2 5 Position of the lifting elements ALWAYS lift the transformer using the four lifting elements...

Страница 8: ...rs with eyebolts on the tank These elements are invalidated to prevent any use other than to remove the transformer from the tank if this is fitted with lifting elements see Figure 2 7 Figure 2 7 Deta...

Страница 9: ...e identified in yellow Figure 2 9 Figure 2 9 Eyebolts on the the tank cover In the case of transformers of lower weight two or four optional eyebolts are available on the cover In the case of transfor...

Страница 10: ...to or above 80 with the horizontal of the transformer and must allow fully vertical lifting at all times The slings must not rub or damage the bushings or other accessories ALWAYS lift the transformer...

Страница 11: ...her elements suitable for the mass of the transformer as shown on its nameplate The protection tools and equipment provided or recommended by Ormazabal according to the agreement with the customer suc...

Страница 12: ...ments When securing the transformer make sure that the lashing or bracing chains do not interfere with any of the transformer s accessories or cooling elements The fastening straps are attached to the...

Страница 13: ...enttrafficandtransportregulations in each transit country must be abided by If the transformer s transport will include sections of roads or routes off paved roads with normal conditions the customer...

Страница 14: ...kVA 4 Storage If commissioning is not immediate transformers must be stored following the recommendations below Store the transformer horizontally in a clean dry place on firm levelled ground If the t...

Страница 15: ...r Check the general state of the transformer and ensure the absence of any knocks in particular on the cooling equipment and the insulators or terminals If the transformer has paint defects it must be...

Страница 16: ...l weight which is shown on its nameplate 5 3 Transformer electrical connections 5 3 1 Standard procedure Risk of death by electric shock and of irreversible damage to the transformer or to the electri...

Страница 17: ...ions 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 tr...

Страница 18: ...ostatic screen must have its connector bushing identified as P E or E S and must be connected rigidly to the installation s earth preferably the protection earth if there are two earth installations R...

Страница 19: ...rmer has been powered it will recover its usual liquid stage 4 Regulate the transformer s voltage using the corresponding tap changer taking into account the following safety precautions Failure to fo...

Страница 20: ...ower is achieved while ensuring that the transformer temperature does not go over 105 C In the case of renewable generation transformers connect to the generation source in low generation conditions a...

Страница 21: ...d ensure that any static electricity is discharged 5 Delimit and mark the work area properly 6 Check that the transformer does not leak dielectric liquid In case of dielectric liquid leakages contact...

Страница 22: ...vements of the transformer Check that the tank valve screws have not become loose due to vibrations If they have tighten securely to prevent any re occurrence 7 2 5 Oil leaks Although it is not normal...

Страница 23: ...is rich in anti corrosive pigments of aluminium zinc or similar Ensure that this paint covers the whole area Shake the contain vigorously before applying the spray After applying the primer coat let...

Страница 24: ...ections and clean any dirt 3 Terminals Once every 2 years Check state and clean 4 Tap changer Once a year Move the tap changer through all positions 5 Accessories with alarm and trip contacts Once eve...

Страница 25: ...1 If after the transformer inspection repairs or modifications are required these operations must be carried out by the Ormazabal 2 If a company other than Ormazabalperforms the repair or modification...

Страница 26: ...essary precautions are taken to protect personnel who normally or circumstantially work around it and that those persons not required for its operation are kept at a safe distance away from the transf...

Страница 27: ...350 Fastening the palms to the pin stainless steel bolts 25 35 40 60 Bolts to the surface of the palms 25 35 40 70 100 150 Connections at low voltage busbars steel bolt and nut 45 60 65 85 95 130 Medi...

Страница 28: ...Subject to change without prior notice For further information contact Ormazabal www ormazabal com Ormazabal Cotradis Transformadores LOECHES Spain...

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