4
Description and main characteristics
General Instructions
ormaSET-M
IG-199-EN version 03
1
Description and main characteristics
Ormazabal
's
ormaSET-M
is a kiosk-type Metallic
Prefabricated Transformer Substation, installed on surface
and externally operated, with reduced dimensions,
standard-built, factory tested and supplied from the factory
as a unit.
ormaSET-M Transformer Substation complies with the
requirements established in standard IEC 62271-202.
ormaSET-M is designed for end-user networks with rated
voltages U
r
up to 36 kV and a rated power of 1000 kVA.
Ormazabal
's ormaSET-M Transformer Substation is made
up of the following main components:
Fig. 1.1:
Main Components of ormaSET-M
It is characterised by the incorporation of medium voltage
(MV) equipment for public distribution networks up to
36 kV. It has independent accesses for the medium voltage
switchgear compartment, for the transformer compartment
and for the low voltage switchboard compartment.
Made up of:
►
Metal prefabricated enclosure.
►
Removable roof dimensions 4046 x 2275 mm.
►
Access doors to the electrical switchgear:
□
Double access doors and dimensions of
997 x 1400 mm in the medium voltage area and
low voltage board area. Folding doors at 90º and
180° on the outside wall, hinged, with a two fixing
point and a fastening rod to hold them open
preventing untimely closures.
□
Snow panel below medium voltage and low
voltage doors, dimensions 1997 x 486 mm.
□
Access doors to the Transformer: Two accesses
to the transformer, one on either side, made up of
double doors of 963 x 1890 mm, folding at 90º
and 180° on the outside wall, hinged, with a two
fixing point and a fastening rod to hold them open
preventing untimely closures.
►
Air intake and exhaust grille for natural ventilation,
fitted with a grille of 6 x 6 mm.
►
Optionally, a closing system for the medium voltage
input cables in the lower part of the enclosure. Up to
3 input cables for 3 x 1 x 240 mm
2
XLPE 18/
30 kV H16. Maximum single core cable diameter
90 mm.
►
Optionally, a closing system for the low voltage
input cables in the lower part of the enclosure. Up to
8 input cables for 4 x 1 x 240 mm
2
XZ1 0.6/1 kV.
Maximum single core cable diameter 90 mm.
►
Base frame manufactured with laminated profiles
UPE 140
►
Optionally, an oil collection pit made of galvanised
sheet metal, with a capacity of 600 litres.
►
Optionally protective earth disconnection box and
service earth disconnection box can be supplied,
located in the low voltage compartment on the left
and right of the low voltage switchgear.
►
Earth circuit, copper conductor cross section
50 mm
2
.
►
Document holder for general instructions relating to
the transformer substation.
►
Lighting in the medium voltage, low voltage and
transformer compartments supplied.
►
Optionally, emergency lighting of 50 Lm 1h NM,
IP42, IK04 1 x 6W, class II, 230 V 50/60 Hz.
According to standard IEC 60598-2-22.
►
Physical separation between the medium voltage
compartment, power transformer and low voltage
compartment.
1
Roof of prefabricated substation
2
Enclosure of prefabricated substation
2.1
Medium voltage switchgear door
2.2
Power distribution transformer door
2.3
Low voltage switchboard door
2.4
Medium voltage cable inter-connection
2.5
Low voltage cable inter-connection
Summary of Contents for Ormazabal ormaSET-M
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