Velatia Ormazabal ormaSET-M, General Instructions Manual

10 

Installation

General Instructions

ormaSET-M

IG-199-EN version 03

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Grounds at Risk of Flooding
In this case, the base of ormaSET-M should be 
raised 100 mm above the predicted flood level.

5.4 Handling

ormaSET-M has four lifting points on the base with a 
diameter of 60 mm, which enable correct handling with a 
lifting beam (ref. 395204-06), slings and properly hooking 
them for the purpose of guaranteeing a balanced hoisting.

Longitudinal levelling is performed using slings or double 
chain leg adjustable slings with safety hooks. The lifting 
beam should be anchored directly from the bottom of the 
sling. In the event of using "WITH RING", the anchoring is 
performed using the ring to lengthen the two branches from 
the side of the lifting beam.

Fig. 5.3:

Lifting process for ormaSET-M

For transversal balancing, the lifting beam has a series of 
numbered holes at its end.

5.5 Cable access and sealing

Optionally, ormaSET-M can be supplied with a lower 
closing system, fitted for accessing cables in the medium 
voltage area and the low voltage area. 

The transformer substation has three cables inputs in the 
medium voltage compartment, each one up to a single 
cable diameter of 90 mm. In the low voltage compartment 
there are 8 outgoings, each one up to a single cable 
diameter of 90 mm.

Fig. 5.4:

Cable access

5.6 Earthing circuit connection

ormaSET-M has a main earthing conductor system 
provided to connect to the earth all metallic parts of the 
prefabricated substation not belonging to the main and/or 
secondary/auxiliary circuits of the equipment. It consists in 
a main 50 mm

2

 cooper earthing conductor on which each 

component is connected through a single circuit.

Fig. 5.5:

Earthing circuit connection

DANGER

For safety reasons, it is not allowed to carry out any 
other type of handling.

A

Medium voltage cubicles earthing (length: 4100 mm)

B

Medium voltage cables earthing (length: 2630 mm)

C

Transf. doors earthing (length: 240 mm)

D

Transf. doors earthing (length: 240 mm)

E

Transf. earthing (length: 2150 mm)

F

LVB earthing (length: 850 mm)

G

Low voltage doors earthing (length: 315 mm)

H

Medium voltage doors earthing (length: 315 mm)

I

Medium voltage doors earthing (length: 315 mm)

J

Transf. doors earthing (length: 240 mm)

K

Transf. doors earthing (length: 240 mm)

L

Low voltage doors earthing (length: 315 mm)