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Storage

General instructions

transforma

.earth

IG-286-EN version 01

3

STORAGE

If storing the earthing transformer (for example, if it will not be 
put into service immediately), the following recommendations 
should be followed:

Store the earthing transformer in a clean and dry place.

If the earthing transformer is equipped with plug-in 
terminals, make sure that the conical protector 
provided with the earthing transformer is protected, to 
keep the connection terminals in good and clean 
condition. 

Содержание velatia transforma.earth

Страница 1: ...transforma earth General instructions IG 286 EN version 01 11 07 2019 Three Phase earthing transformers up to 36 kV LIB...

Страница 2: ...e situation according to current legislation 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 w...

Страница 3: ...6 Transporters 7 2 7 Route selection for road transport 7 2 8 Checking the impact recorders 7 2 9 Responsibility 7 3 Storage 8 4 Installation 9 4 1 Reception of the earthing transformer 9 4 2 Installi...

Страница 4: ...mponents 1 1 1 Standard or routine testing Earthing transformers are subjected to routine testing that guarantees compliance with the following standards Measurement of winding resistance IEC 60076 1...

Страница 5: ...ing specifications into consideration Slings on the eye bolts should form an angle greater than or equal to 60 to the horizon of the earthing transformer Slings should not rub nor damage the bushings...

Страница 6: ...uch size and weight 2 5 Preparing the load for transport The transformer should be attached by means of slings chains and other elements suitable for the mass stated on the transformer s name plate Fo...

Страница 7: ...olent transport events 2 7 Route selection for road transport Route selection for road transport must be done so that the road selected is the one that demonstrates the best conditions for transportin...

Страница 8: ...ut into service immediately the following recommendations should be followed Store the earthing transformer in a clean and dry place If the earthing transformer is equipped with plug in terminals make...

Страница 9: ...if they are damaged immediately notify the shipper or Ormazabal The earthing transformer seals should be intact and should not have been tampered with IG168 005 Fig 4 1 Detail of the earthing transfo...

Страница 10: ...terminal 12 mm for M10 Use a 40 60 Nm tightening torque for M12 25 35 Nm for M10 Fig 4 2 Detail of the transforma earth earthing connection DANGER Risk of death due to electrocution and irreversible d...

Страница 11: ...e on the earthing transformer bushings with sufficient gauge to avoid excessive heating and at the same time allow for the possibility of expansion due to heating so the machine is not damaged 10 The...

Страница 12: ...djustment DANGER In the event the earthing transformer is supplied with current transformers check that they are connected to the medium voltage circuits or that they are short circuited Never put an...

Страница 13: ...erational power being careful that the earthing transformer s temperature does not surpass a value of 105 C 2 Adjust the electrical voltage on the earthing transformer using the corresponding tap chan...

Страница 14: ...ollowing aspects Tightness check that there are no dielectric fluid leaks Cleaning check for proper cleaning and maintenance Noises check that there are no anomalous or abnormal noises Measurement too...

Страница 15: ...tion resistance 1 time per year When a change is detected in the results after years of using the transformer or from comparing data from previous tests 7 Measuring the equipment s tan 1 time every 3...

Страница 16: ...ansformer requires its repair or modification said operations must be performed by Ormazabal If the repair or modification is performed by a company other than Ormazabal the repairer must incorporate...

Страница 17: ...nstallation for the protection of those who work around it either regularly or incidentally and that all external personnel avoid proximity to it during its operation 7 2 Business registration certifi...

Страница 18: ...loss of dielectric fluid Tab 8 1 Recommended tightening torques Nm Metric Size M10 Low voltage LV Connection between nuts 15 20 70 100 250 350 25 35 40 60 85 95 25 35 40 70 100 150 Low voltage through...

Страница 19: ......

Страница 20: ...Subject to changes without prior notice For more information contact Ormazabal Ormazabal Cotradis Transformadores LOECHES Spain www ormazabal com...

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