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7

Transport and handling

General instructions

transforma

.earth

IG-286-EN version 01

Lower tie-down elements:

 there are four and they are 

found at the base of the transformer (Figure 2.5)

Fig. 2.5:

 Lower transport tie-down

When tying the transformer down, pay attention that 
the securing strap does not interfere at any time with 
any of the transformer's refrigeration elements or 
accessories.

The tie down straps should be attached to the 
containers’ fastening elements on both sides of the 
transformer so that they produce symmetrical tension 
that is counterbalanced on both sides.

Do not use the connecting rods on the refrigeration 
elements as securing points for transport, or for any 
other similar purpose (Figure 2.6).

Some accessories may be removed and attached as 
additional packages for transport.

Fig. 2.6:

Do not use the connecting rods on the refrigeration 
elements as securing points or for similar purposes

2.6

Transporters

The agents, companies, and personnel involved in the task of 
transporting and handling the earthing transformer must 
demonstrate preparation, training, procedures, and 
experience with transporting heavy equipment and with 
equipment that is sensitive to damage from violent 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 transporting heavy loads sensitive to damage from impact, 
shaking, vibrations, and accelerations.

A route that reduce the effects of accelerations, vibrations, 
impacts, and shaking caused by sinuosity, changes in slope, or 
the state of the road's cant must take precedence over the 
shortest distance.

Routes should be avoided where there is construction or that 
have slopes and priority should be given as far as possible for 
higher grade interstates that have the least amount of slope, 
maximum linearity, and better road conditions.

2.8

Checking the impact recorders

Ormazabal

 reserves the right to accommodate impact 

recorders or detectors in its transformers, which reveal events 
during transport that can cause damage to the machine.

Acceleration values greater than those shown in the following 
Table 2.1 are unacceptable, as taken from IEEE Standard 
C57.93-2007:

Tab. 2.1:

Recommended acceleration value limits from 
IEEE

 

Standard C57.93-2007

2.9

Responsibility

Ormazabal

 reserves the right to not be responsible for 

damages caused from the transport and handling of its 
product when the conditions described in this document are 
not met.

Type of Impact

Level Limits

Longitudinal

3g

Vertical

2g

Transversal

2g

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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