Ormazabal transforma.bst-pm General Instructions Manual Download

Page: 26 / 28

Notes

General instructions

transforma

.bst-pm: Distribution transformers, hermetically

sealed, immersed in dielectric liquid from 16 to 100 kVA

(single-phase) / from 25 to 315 kVA (three-phase)

Notes

IG-302-EN version 01; 18/11/2020

Summary of Contents for transforma.bst-pm

Page 1: ...ribution transformers hermetically sealed immersed in dielectric liquid from 16 to 100 kVA single phase from 25 to 315 kVA three phase According to IEC 60076 and ENA TS 35 1 General instructions IG 30...

Page 2: ...rd EN 50110 2 on activities in or near electrical installations Personnel must be fully familiar with the instructions and warnings contained in this manual and in other recommendations of a more gene...

Page 3: ...lecting the route for road transport 10 3 4 Checking impact detectors 11 3 5 Responsibility 11 4 Storage 12 5 Installation 13 5 1 Receiving the transformer 13 5 2 Transformer electrical connections 14...

Page 4: ...the type K transformer range is characterised by its use of natural or synthetic esters as a dielectric liquid with the following general characteristics Excellent dielectric properties with a high wa...

Page 5: ...ith the following standards IEC 60076 1 Winding resistance measurement IEC 60076 1 Transformation ratio measurement and check up of vector group IEC 60076 1 Measurement of load losses and short circui...

Page 6: ...force the cooling elements fins radiators etc when lifting moving or fixing the transformer to the transport base The fixing moving and lifting elements bracing etc must be able to withstand the entir...

Page 7: ...rmer with a crane maintaining a horizontal position at all times Two or four eye bolts are optionally fitted in the cover In the case of transformers with four eye bolts four lifting hooks must be use...

Page 8: ...cks above normal for goods with such dimensions and weight occur 3 1 Preparing the load for transport The transformer must be lifted using slings chains and other elements suitable for the weight of t...

Page 9: ...g or fastening chains do not interfere with any of the transformer s accessories or cooling elements The fastening straps are attached to the container s fastening elements on both sides of the transf...

Page 10: ...accelerations vibrations impacts and bangs caused by winding roads changes of gradient and the cant of the road should take precedence over shortest distance As far as possible priority should be giv...

Page 11: ...of at least 1 g in all directions apart from gravity acceleration in vertical direction without any damage If transport is not managed by Ormazabal or is not carried out under its responsibility and...

Page 12: ...mers must be stored following the recommendations below Store the transformer in a place that is dry and clean If the transformer is equipped with plug in terminals make sure the conical protector or...

Page 13: ...sociated order Check the general state of the transformer and ensure the absence of any impacts in particular in the cooling equipment and in the insulators or terminals If the transformer has paint d...

Page 14: ...ectrical power sources and interlock or block the necessary breaking devices to prevent any power supply 3 Check that electrical voltage is not present 4 Earth and short circuit all the electrical pow...

Page 15: ...ed to prevent excessive overheating and at the same time allow the expansion caused by heat without damaging the transformer The tightening torques must guarantee the proper electric contact of the co...

Page 16: ...es the transformer s rated voltage Contact Ormazabal in the case of any anomaly If an adjustment is required after commissioning the transformer follow the safety instructions specified in section 7 1...

Page 17: ...entioned in point 6 1 1 b Move the transformer indoors for at least 24 h to allow the ester to heat up and decrease its viscosity Then carry out the same operations as mentioned in point 6 1 1 It may...

Page 18: ...electrical power sources for the circuits until the transformer is turned off interlocking or blocking the necessary breaking devices to prevent any power supply 2 Check that electrical voltage is no...

Page 19: ...e the cause must be determined before proceeding with repair 7 2 3 Noise If strange noises are heard to come from the transformer contact Ormazabal and report the circumstances so we can determine the...

Page 20: ...pray the affected area with a coat of paint which is rich in anti corrosive pigments of aluminium zinc or similar Ensure that this paint covers the whole area Shake vigorously before applying the spra...

Page 21: ...the machine is fitted with oil level internal pressure and or temperature indicator instruments check that the levels or values measured are appropriate Clean state check that the transformer is clean...

Page 22: ...azabal who will provide appropriate instructions 1 If repairs or modifications are required after inspecting the transformer these operations must be carried out by Ormazabal If a company other than O...

Page 23: ...e observed Additionally it is required that during its installation the necessary precautions are taken to protect personnel who normally or circumstantially work around it and that any persons not re...

Page 24: ...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 in low voltage busbars steel bolt and nut 45 60 65 85 95 130 Medium o...

Page 25: ...ructions transforma bst pm Distribution transformers hermetically sealed immersed in dielectric liquid from 16 to 100 kVA single phase from 25 to 315 kVA three phase Notes Notes IG 302 EN version 01 1...

Page 26: ...l instructions transforma bst pm Distribution transformers hermetically sealed immersed in dielectric liquid from 16 to 100 kVA single phase from 25 to 315 kVA three phase Notes IG 302 EN version 01 1...

Page 27: ......

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

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