Field of the Invention
[0001] The invention generally relates to a mounting for a bundle of cables. The invention
more particularly relates to a mounting for arranging a plurality of cables in a predefined
configuration through a current transformer.
Background of the Invention
[0002] It is known to use current transformers for measurement of electric currents and
power. A current transformer has a primary winding, a magnetic core and a secondary
winding and the alternating current flowing in the primary generates a magnetic field
in the core. The magnetic field in the core induces a current in the secondary winding
circuit and it is important that the primary and secondary circuits are coupled efficiently
in order to ensure that the secondary current bears an accurate relationship to the
primary current.
[0003] Many current transformers have a wire wrapped many times around a ring passed over
the circuit being measured. Accordingly, the primary circuit of the current transformer
is a single 'turn', while the secondary circuit may consist of many hundreds of turns.
It is commonly known that when conductors passing through a current transducer are
not centered in the opening (circular or oval), inaccuracies may occur.
[0004] One prior art current transformer is disclosed in
US 2011/0121932 A1. This document discloses a transformer assembly for mounting a current transformer
to an electrical apparatus. A generally toroidal current transformer senses electrical
current in conductors of the electrical apparatus and has a housing. A mechanical
lug for conductors of the electrical apparatus is mounted directly to the housing
of the current transformer, within the central opening of the toroid. The mechanical
lug has one or more conductor bores located within a main body of the mechanical lug
for receiving respective conductor wires.
[0005] However, the main body of the lug disclosed in in
US 2011/0121932 A1 is an integrally formed piece of equipment which solely allows the conductors to
be preliminarily loosely fit into the conductor bores by loosening a conductor fastener
screw. The consequence of this is that the whole length of the conductor needs be
guided through the very narrow bore in the body of the lug before the conductor can
be fastened. This amounts to great difficulties in arranging the conductors into the
bores.
[0006] Thus, there is need for an improved mounting that can assist an accurate measurement
of current through the cables by using a current transformer.
Object of the Invention
[0007] Accordingly, it is an object of the present invention to provide a mounting that
can arrange a plurality of cables in a manner in which the electric power through
the cables can be measured by using a current transformer.
[0008] It is also an object of the present invention to provide a mounting that is capable
of fixing cables to a ceiling, a floor, a wall or a plate member.
[0009] It is also an object of the present invention to provide a mounting capable of guiding
a first set of cables through a first current transformer and additionally guiding
a second cable (or set of cables) through a second current transformer.
Summary of the Invention
[0010] The object of the present invention can be achieved by a mounting and use thereof
having the features defined in independent claims 1, 5 and 9, respectively. Preferred
embodiments are defined in the dependent sub claims and explained in the following
description and illustrated in the accompanying drawings.
[0011] In one aspect, the mounting according to the invention is a mounting for arranging
a plurality of cables through core member having an essentially circular opening and
a cylindrical space having a longitudinal axis
[0012] The mounting comprises means for receiving or being attached to the core member 6,
and the mounting comprises a first wall member arranged adjacent to a second wall
member, where one or more apertures extend through both a part of the first wall member
and through a part of the second wall member, whereby, in use, the cables are being
allowed to be evenly distributed evenly around the longitudinal axis of the space
in a manner in which the cables are arranged with essentially equal distance to the
longitudinal axis of the space.
[0013] Hereby it is achieved that current and thus electric power (provided that the voltage
is known) through the cables can be measured by using a current transformer.
[0014] Additionally, the core member may be firmly secured to the mounting.
[0015] Furthermore, it is possible to guide cables through the apertures after the cables
are guided through the opening in the core member.
[0016] The opening in the core member may be circular or oval.
[0017] It should be noted that throughout the present description and in the appended claims
the term "longitudinal axis" should be interpreted to mean a longitudinal axis which
is preferably essentially concentrically arranged within the cylindrical space of
the core member.
[0018] It is possible to apply different means for distribute the cables evenly around the
longitudinal axis of the space in a manner in which the cables are arranged with essentially
equal distance to the longitudinal axis of the space. In the following examples of
such means will be explained in more detail.
[0019] The first wall member and the second wall member may be arranged in a way which allows
the cables to pass through the apertures after the cables have been inserted through
the opening in the core member. This may be a major advantage when the mounting is
being attached to a bundle of cables.
[0020] It is preferred that the apertures are circular shaped or oval shaped so that the
apertures fit to the geometry of standard cables.
[0021] It may be an advantage that the mounting comprises a third wall member arranged adjacent
to the second wall member, where one or more apertures extend through both a part
of the second wall member and through a part of the third wall member. Hereby, cables
can be guided through the apertures after the cables are guided through the opening
in the core member.
[0022] It may be beneficial that the mounting is configured to receive four cables and that
two apertures extend through both a part of the first wall member and through the
second wall member and that two apertures extend through both a part of the second
wall member and through a part of the third wall member.
[0023] Hereby the mounting may be used to assist the measurement of current and power through
cable bundles comprising four cables, e.g. a phase of a wind turbine, which phase
is separated into four cables.
[0024] It may be an advantage that the mounting comprises means for securing the mounting
to a ceiling, a floor, a wall or a plate member.
[0025] Hereby the mounting is capable of fixing cables to a ceiling, a floor, a wall or
a plate member.
[0026] The means for securing the mounting to a ceiling, a floor, a wall or a plate member
may be a plate provided with bores for being attached to a ceiling, a floor, a wall
or a plate member, by way of example.
[0027] It is preferred that the third wall member is configured to be attached to a plate-shaped
base member that is adapted to be fixed to a ceiling, a floor, a wall or a plate member.
[0028] It should be noted that the first wall member, the second wall member, and if included,
also the third wall member are separate, non-integral items. These items may accordingly
easily be assembled and disassembled for easy arrangement, distribution and fixing
of cables.
[0029] In a second aspect, t the mounting is a mounting for arranging a plurality of cables
through a core member having an essentially circular opening and a cylindrical space
having a longitudinal axis. The mounting comprises:
- a plate-shaped base member provided with a central aperture;
- a resilient and plate-shaped support member configured to be received by the central
aperture in the base member;
- a plurality of cylindrical apertures being provided in the base plate at the periphery
of the central aperture, where each cylindrical aperture is configured to receive
a cable, where an aperture is provided in the support member, which aperture is configured
to receive a plug member, where the support member is configured to be radially extended
and hereby pressing the support member towards the cables when the plug member is
inserted into the aperture in the support member; whereby, in use, the cables are
being allowed to be evenly distributed around the longitudinal axis of the space in
a manner in which the cables are arranged with essentially equal distance to the longitudinal
axis of the space.
[0030] Hereby, it is easy and fast to mount the mounting to a bundle of cables.
[0031] It should be noted that the plate-shaped member, the plate-shaped support member
and the plug member are separate, non-integral items. These items may accordingly
easily be assembled and disassembled for easy arrangement, distribution and fixing
of cables.
[0032] It is preferred that the mounting comprises a first mounting wall and a second mounting
wall extending parallel to the first mounting wall. Hereby both the first mounting
wall and the second mounting wall can be used to support the core member of the current
transformer. Accordingly, a firmly and accurate positioning of the core member relative
to the mounting can be achieved.
[0033] It may be an advantage that the first mounting wall and the second mounting wall
are mechanically connected to one another by using a number of attachment means extending
through the first mounting wall and the second mounting wall. Hereby a robust and
reliably mounting can be achieved and the core member may be kept in position.
[0034] It is preferred that a threaded rod extends through the first mounting wall and/or
the second mounting wall and that the threaded rod is used to attach different portion
of a mounting wall to one another and/or to a base member configured to be attached
to a plate member.
[0035] It is preferred that the mounting comprises an additional mounting member configured
to receive one or more cables and guide the cable(s) through a current transformer,
where the additional mounting member is attached to a base member or to a mounting
wall.
[0036] In a third aspect, the invention relates to the use of a mounting according to the
first or second aspect for arranging a plurality of cables when measuring the electric
power through the cables by using a current transformer.
Description of the Drawings
[0037] The invention will become more fully understood from the detailed description given
herein below. The accompanying drawings are given by way of illustration only, and
thus, they are not limitative of the present invention. In the accompanying drawings:
- Fig. 1
- shows a perspective view of a core member of a current transformer;
- Fig. 2
- is a side view of a mounting of a first aspect according to the invention;
- Fig. 3
- shows a perspective of a mounting having two mounting walls;
- Fig. 4
- shows two views of the mounting shown in Fig. 3;
- Fig. 5
- shows two different views of the two part of the mounting shown in Fig. 2-4;
- Fig. 6
- shows two views of a mounting of a second aspect according to the invention;
- Fig. 7
- shows two mountings according to the invention, where four cables are guided through
a current transformer received by each of the mountings and
- Fig. 8
- shows a side view of a mounting according to the invention.
Detailed Description of the Invention
[0038] Referring now in detail to the drawings for the purpose of illustrating preferred
embodiments of the present invention, a mounting 2 of the present invention is illustrated
in Fig. 2.
[0039] Fig. 1 illustrates a core member 6 of a current transformer that is intended to measure
electric currents and power. A circular opening 8 defining a cylindrical space 9 is
provided in the core member 6. The opening 8 is configured to receive a bundle of
electrical cables. The cylindrical space 9 has a longitudinal axis X.
[0040] Four through going bores 10 are provided in the core member 6. These bores 10 are
configured to receive bolts or other fastening means used to secure the core member
6 to a mounting according to the invention. The current transformer may be used to
measure the power generation of a wind turbine, by way of example.
[0041] Fig. 2 illustrates a mounting 2 according to the invention. The mounting 2 comprises
a plate-shaped base member 12 that is configured to be attached to a wall, a floor,
a ceiling or a plate member (e.g. by means of screws or other fastening means). A
first wall member 14 is adapted to be attached to the base member 12 by means of screws
through bores 28 in the first wall member 14. Two additional bores 22 are provided
in the first wall member 14 and these additional bores 22 are configured to receive
bolt members in order to fix the mounting 2 to a current transformer. The first wall
member 14 is plate-shaped.
[0042] A second plate-shaped wall member 16 is arranged above and adjacent to the first
wall member 14. Two apertures 26 are provided in the first wall member 14 and the
second wall member 16. The apertures 26 extend through both a part of the first wall
member 14 and through the second wall member 16. In fact, the apertures 26 are circular
shaped. Both the first wall member 14 and the second wall member 16 comprise two apertures
shaped as semicircles. Each of the semi-circular apertures are arranged adjacent to
a semi-circular aperture of the adjacent wall member so that the semi-circular apertures
constitute a circular aperture when the wall members are brought together.
[0043] A third plate-shaped wall member 18 is arranged above and adjacent to the second
wall member 16. Both the second wall member 16 and the third wall member 18 comprise
two apertures shaped as semicircles and these semi-circular apertures are arranged
adjacent to a semi-circular aperture of the adjacent wall member. Like in the abutting
area of the first wall member 14 and the second wall member 16 the semi-circular apertures
of the second wall member 16 and the third wall member 18 constitute two circular
apertures when the wall members are brought together. The first wall member 14, the
second wall member 16 and the third wall member together constitute a mounting wall
76.
[0044] Two bores 22 are provided in the third wall member 18. Moreover, two through going
bores are extending through the first wall member 14, the second wall member 16 and
the third wall member 18 and two threaded rods 20, 20' extend through these bores.
The rods 20, 20' are engaged in first wall member 14 via engagement of a threaded
portion of the bores 20, 20'. The rods 20, 20' have a threaded free portion above
the third wall member 18 and this threaded portion is configured to receive a nut.
[0045] Each of the apertures 24, 26 are configured to receive a cable and guide the cable
through the opening of a core member (se Fig. 1) that is attached to or received by
the mounting 2.
[0046] An additional mounting member 40 is secured to the base member 12. The additional
mounting member 40 is arranged next to the first wall member 14 and comprises a first
plate-shaped portion 36 and a second plate-shaped portion 38. A semi-circular aperture
is provided in both the first portion 36 and in the second portion 38.The semi-circular
apertures constitute a circular aperture 34 when the first portion 36 and the second
portion 38 are brought together.
[0047] Bores 30 for attaching the first portion 36 to the base member 12 are provided in
the first portion 36. Two oval bores 32 are provided in the first portion 36 and two
additional oval bores 32 are provided in the second portion 38. These bores 32 are
configured to receive screws or bolts that can be used to attach the additional mounting
member 40 to a current transformer (not shown) configures to measure the current through
a cable passing through the aperture 34 and through the opening in the current transformer.
[0048] It may be an advantage to rotate the mounting 2 90 degrees during the assembly procedure
like illustrated in Fig. 8. Hereby the parts 14, 16, 18 will be secured by the rods
20, 20'. Accordingly, the installer will be able to arrange the wall members 14, 16,
18 sideways.
[0049] Fig. 3 illustrates a perspective view of a mounting 2 according to the invention.
The mounting comprises a first mounting wall 76 having a first wall member 14, a second
wall member 16 and a third wall member 18 arranged on the top of each other. The first
wall member 14 is configured to be attached to a plate shaped base member 12 that
is oriented perpendicular to the first mounting wall 76.
[0050] The mounting 2 also comprises a second mounting wall 76' comprising a first wall
member 14', a second wall member 16' and a third wall member 18' arranged in the same
manner as the first wall member 14, the second wall member 16 and the third wall member
18 of the first mounting wall 76. The second mounting wall 76' is configured to be
attached to the base member 12 just like the first mounting wall 76. Threaded rods
20, 20' extend through the first mounting wall 76 and through the second mounting
wall 76'.
[0051] An additional mounting member 40 is arranged next to the first mounting wall 76 and
is configured to be secured to the base member 12. Two through going bores 45 are
provided in the second portion 38 of the additional mounting member 40. These bores
45 extend further through the first portion 36 of the additional mounting member 40.
[0052] The mounting 2 is intended for guiding four cables through a core member 6 of a current
transformer. In use the base member 12 may be mounted in a ceiling, on a wall or on
a plate member. Hereafter the first wall members 14, 14' are secured to the base member
12 by use of screws or bolt members received by the bores 28. Then a current transformer
(not shown) having a core member (e.g. of the type illustrated in Fig. 1) is arranged
on the base member 12. Hereafter two cables are put through the opening in the core
member 6 and the second wall members 16, 16' are put on the top of the first wall
members 14, 14'. The two cables received by the mounting 2 are arranged in the apertures
26 of the mounting.
[0053] After this the two remaining cables are put through the opening in the core member
(not shown) and finally the third wall members 18, 18' are put on the top of the second
wall members 16, 16'. The wall members 14, 14', 16, 16', 18, 18' of the mounting walls
76, 76' may be pressed together by means of nuts screwed on the rods 20, 20'.
[0054] The additional mounting 40 and the cable(s) guided by it may be secured to the base
member 12 before or after the mounting 2 is assembled.
[0055] The mounting 2 guides the cables through the current transformer in a manner in which
allows for an accurate measurement of the current through the cables. In fact that
the mounting 2 distributes the cables evenly around the longitudinal axis of the space
of the core member 6 (see Fig. 1) of the current transformer and the cables are arranged
with essentially equal distance to the longitudinal axis of the space (see Fig. 1).
[0056] Fig. 4 a) illustrates a side view of the mounting 2 shown in Fig. 3. The mounting
2 has a first mounting wall 76 that comprises a first wall member 14, a second wall
member 16 and a third wall member 18 being interspaced and arranged on the top of
each other. The mounting moreover has a second mounting wall 76'that comprises a first
wall member 14', a second wall member 16' and a third wall member 18'. The first wall
member 14 of the first mounting wall 76 and the first wall member 14' of the second
mounting wall 76' are fixed to a plate-shaped base member 12.
[0057] A threaded rod 20 extends through the first wall member 14, the second wall member
16 and the third wall member 18 of the first mounting wall 76. Similarly, at threaded
rod 20' extends through the first wall member 14', the second wall member 16' and
the third wall member 18' of the second mounting wall 76'.
[0058] Fig. 4 b) illustrates a bottom view of the mounting 2 shown in Fig. 4 a). The base
member 12 is provided with four bores 42 that are configured to be used to mount the
base member 12 to a ceiling, a floor or a wall or plate member e.g. by means of screws
or other fastening means. It can be seen from Fig. 4 b) that two bores 44 are provided
in the first wall member 14 of the first mounting wall 76 and that two bores 44' provided
in the first wall member 14' of the second mounting wall 76'. Moreover, the first
portion 36 of an additional mounting member 40 (se Fig. 3) is fixed to the base member
12 and two bores 45 are provided in the first portion 36 of the additional mounting
member 40. The bores 45 are configured to receive a threaded rod (not shown) that
can be used to attach the first portion 36 of the additional mounting member 40 to
the second portion 38 of the additional mounting member 40.
[0059] Fig. 5 a) illustrates a front view of a mounting wall 76 of a mounting according
to the invention. The mounting wall 76 constitutes of a first wall member 14, a second
wall member 16 and a third wall member 18. Two through bores 44 extend through the
first wall member 14, the second wall member 16 and the third wall member 18 of the
mounting wall 76.
[0060] Fig. 5 b) illustrates a perspective view of the mounting wall 76 shown in Fig. 5
a).
[0061] It is possible to use a mounting that has only one mounting wall 76 to measure current
through cables by using current transformer that is attached to a single mounting
wall 76 like the one shown in Fig. 5. The mounting wall 76 may be equipped with means
for attaching the current transformer to the mounting wall 76. The bores 22 may be
used to attach a current transformer to the mounting wall 76 by means of bolts and
corresponding nuts.
[0062] Fig. 6 illustrates two different views of a mounting 50 according to the invention.
The mounting 50 comprises an essentially plate-shaped base member 64 that is provided
with four through going circular bores 52 and four cylindrical apertures 54 provided
closer to the central portion of the base member 64 than the bores 52. The bores 52
are provided close to the corners of the base member 64 and the bores 52 are configures
to receive a bolt member (see Fig. 7 b) in order to attach the base member 64 to a
core member of a current transformer.
[0063] A plate-shaped support member 60 is arranged in a central aperture provided the base
member 64. The central aperture provided the base member 64 is slightly larger than
the support member 60. Accordingly, a free space 62 is provided between the central
aperture provided the base member 64. The cylindrical apertures 54 are configured
to receive a cable.
[0064] An axially extending cylindrical aperture 56 is provided in the support member 60.
Furthermore, four radially extending splits 58 extend from the cylindrical aperture
56 towards the corners of the support member 60. The splits 58 are configured to make
it possible to insert a cylindrical plug member 74 into the aperture 56 of the support
member 60 and hereby radially expand the support member in order to make the support
member press against cables received by the apertures 54. In this way the cables may
easily be fixed by using the mounting 50.
[0065] It is possible to use a single mounting 50 like the one shown in Fig. 6 to guide
cables through a core member of a current transformer. It is, however, also possible
to apply two mountings 50 and sandwich a current transformer between these two mountings
50 (like illustrated in Fig. 7 b).
[0066] In use the cables are inserted through the apertures 54 in the mounting 50. Hereafter
the support member 60 is arranged like illustrated in Fig. 6 b). Finally, the plug
member 74 is inserted into the aperture 56 in the support member 60 by forcing the
plug member 74 along the longitudinal axis Y of the plug member 74 so that the cables
are kept in place by the radially directed forces exerted by the support member 60
towards the cables.
[0067] It is preferred that the support member 60 is made in a resilient material (e.g.
rubber) in order to allow for the required radial extension of the support member
60 towards the cables.
[0068] Fig. 7 a) illustrates a side view of a mounting 2 according to the invention. The
mounting 2 is used to attach a core member 6 of a current transformer that is configured
to measure the current through cables 4, 4' being guided through the core member 6.
Hereby the electric power output (e.g. from a wind turbine) may be measured (provided
that the voltages is known).
[0069] The cables 4, 4' are arranged so that the cables 4, 4' extend through the core member
6 with the same distance to the centre of the core member 6.
[0070] In Fig. 7 a) a mounting 2 similar to the ones shown in Fig. 3-4 is illustrated. The
mounting 2 has a first mounting wall 76 that attached to the core member 6 of the
current transformer and further to a second mounting wall 76' by means of a threaded
bolt member 70 having a bolt head 68 provided next to a washer 66'. A washer 66 and
a nut 72 is attached to the threaded bolt member 70 in order to keep the first mounting
wall 76 and the second mounting wall 76' pressed together.
[0071] It can be seen that a free space 48 is provided between the first wall members 14,
14' and the second wall members 16, 16' of the mounting walls 76, 76'. Another free
space 46 is provided between the second wall members 16, 16' and the third wall members
18, 18' of the mounting walls 76, 76'. These free spaces 46, 48 make it possible to
use the same mounting to cables of slightly different thicknesses. However, it may
be preferred that the mounting is dimensioned in order to fit to cables of specific
diameters. Therefore, a small mounting may be preferred to thin cables 4, 4' while
a larger mounting may be preferred to thicker cables 4, 4'.
[0072] The first mounting wall 76 and the second mounting wall 76' are attached to a plate-shaped
base member 12 by means of threaded rods 20, 20' extending through the first mounting
wall 76 and through the second mounting wall 76'.
[0073] The base member 12 may be attached to a in a ceiling, a floor or a wall or plate
member and still the cables 4, 4' are secured to in a way in which they extend through
the core member 6 in the current transformer so that an accurate current measurement
can be carried out by using the current transformer.
[0074] Fig. 7 b) illustrates another mounting 50 according to the invention. The mounting
50 corresponds to the mounting 50 illustrated in Fig. 6. However, the mounting 50
in Fig. 7 b) comprises a first base member 64 and a second base member 64' that are
mechanically connected to one another by means of two threaded bolt members 70. Each
bolt member 70 has a bolt head that bears against a washer 66' that abuts the second
base member 64'. A washer 66 and a nut 72 are provided and mechanically attached at
the free end of the bolt member 70.
[0075] Even though it is not illustrated, it would be possible to attach the first base
member 64 and the second base member 64' to a base member 12 like the one shown in
Fig. 7 a). This may be done by using the threaded rods 20, 20' that may extend through
the entire length of the first base member 64 and the second base member 64'. However,
it would also be possible to attach the mounting 50 shown in Fig. 7 b) to a plate
member (not shown) directly by using the rods 20, 20'.
[0076] Fig. 8 illustrates a view of a mounting 2 according to the invention. It may be beneficial
to arrange and assemble the mounting 2 like illustrated in Fig. 8. The wall members
14, 16, 18 are secured and prevented from falling down by the connection to the rods
20, 20'. Therefore, the installer is able to arrange the wall members 14, 16, 18 sideways
while assembling the mounting 2.
[0077] Initially the first wall member 14 is attached to the base member 12 by inserting
screws/bolts into the bores 28. Hereafter cables can be arranged in the apertures
24.
[0078] The next step is to secure the second wall member 16 to the base member 12 by inserting
screws/bolts into the oval bores 32'. The bores 32' are oval in order allow for vertical
displacement of the second wall member 16 relative to the base member 12.
[0079] When the second wall member 16 has been secured to the base member 12, cables are
inserted into the apertures 26 and hereafter the third wall member 18 is attached
to the base member 12. The third wall member 18 is secured to the base member by inserting
screws or bolts through the oval bores 32" that are provided in the third wall member
18. The oval bores 32" allow for vertical displacement of the third wall member 16
relative to the base member 12.
[0080] The invention is further explained with reference to the items 1-10 set out below:
Item 1: A mounting (2, 50) for arranging a plurality of cables (4) through core member
(6) having an essentially circular opening (8) and a cylindrical space (9) having
a longitudinal axis (X) characterised in that the mounting (2) comprises mounting means configured to distribute the cables
(4, 4') evenly around the longitudinal axis (X) of the space (9) in a manner in which
the cables (4, 4') are arranged with essentially equal distance to the longitudinal
axis (X) of the space (9).
Item 2: A mounting (2, 50) according to item 1 characterised in that the mounting (2) comprises means (14, 16, 18, 12) for receiving the core member
(6) or means for being attached to the core member (6).
Item 3: A mounting (2, 50) according to item 1 or item 2 characterised in that the mounting (2) comprises a first wall member (14) arranged adjacent to a second
wall member (16), where one or more apertures (24, 26) extend through both a part
of the first wall member (14) and through a part of the second wall member (16).
Item 4: A mounting (2, 50) according to item 3 characterised in that the mounting (2) comprises a third wall member (14) arranged adjacent to the
second wall member (16), where one or more apertures (24, 26) extend through both
a part of the second wall member (16) and through a part of the third wall member
(18).
Item 5: A mounting (2, 50) according to one of the preceding items characterised in that the mounting (2, 50) is configured to receive four cables (4, 4') and that two
apertures (24, 26) extend through both a part of the first wall member (14) and through
the second wall member (16) and that two apertures (24, 26) extend through both a
part of the second wall member (16) and through a part of the third wall member (18).
Item 6: A mounting (2, 50) according to on of the preceding items characterised in that the mounting (2, 50) comprises means (12) for securing the mounting (2, 50)
to a ceiling, a floor, a wall or a plate member.
Item 7: A mounting (50) according to one of the preceding items characterised in that the mounting (50) comprises:
- a plate-shaped base member (64) provided with a central aperture;
- a resilient and plate-shaped support member (60) configured to be received by the
central aperture in the base member (64);
- a plurality of cylindrical apertures (54) provided in the base plate (64) at the periphery
of the central aperture, where each cylindrical aperture (54) is configured to receive
a cable (4, 4'), where an aperture (56) is provided in the support member (60), which
aperture (56) is configured to receive a plug member (74), where the support member
(60) is configured to be radially extended and hereby pressing the support member
(60) towards the cables (4, 4') when the plug member (74) is inserted into the aperture
(56) in the support member (60).
Item 8: A mounting (2, 50) according to one of the preceding items characterised in that the mounting (2, 50) comprises a first mounting wall (76) and a second mounting
wall (76') extending parallel to the first mounting wall (76).
Item 9: A mounting (2, 50) according to item 8 characterised in that the first mounting wall (76) and the second mounting wall (76') are mechanically
connected to one another by using a number of attachment means (70, 72, 66, 66') extending
through the first mounting wall (76) and the second mounting wall (76').
Item 10: A mounting (2, 50) according to one of the preceding items characterised in that the mounting (2, 50) comprises an additional mounting member (40) configured
to receive one or more cables (4, 4') and guide the cable(s) (4, 4') through a current
transformer, where the additional mounting member (40) is attached to a base member
(12) or to a mounting wall (76, 76').
List of reference numerals
2 - |
Mounting |
4, 4' - |
Cable |
6 - |
Core member |
8 - |
Opening |
9 - |
Space |
10 - |
Bore |
12 - |
Base member |
14, 14' - |
First wall member |
16, 16' - |
Second wall member |
18,18' - |
Third wall member |
20, 20' - |
Rod |
22 - |
Bore |
24, 26 - |
Aperture |
X - |
Longitudinal axis |
Y - |
Longitudinal axis of the plug member |
28, 30, 32 - |
Bore |
32', 32" - |
Bore |
34 - |
Aperture |
36 - |
First portion |
38 - |
Second portion |
40 - |
Additional mounting member |
42, 44, 44', 45 - |
Bore |
46, 48 - |
Free space |
50 - |
Mounting |
52 - |
Bore |
54, 56 - |
Aperture |
58 - |
Split |
60 - |
Support member |
62 - |
Free space |
64 - |
Base member |
66, 66' - |
Washer |
68 - |
Bolt head |
70 - |
Threaded bolt member |
72 - |
Nut |
74 - |
Plug member |
76, 76' - |
Mounting wall |
1. A mounting (2) for arranging a plurality of cables (4, 4') through a core member (6)
having a essentially circular opening (8) and a cylindrical space (9) having a longitudinal
axis (X); said mounting (2) comprises means (14, 16) for receiving or being attached
to the core member (6), characterised in that the mounting (2) comprises a first wall member (14) arranged adjacent to a second
wall member (16), where one or more apertures (24, 26) extend through both a part
of the first wall member (14) and through a part of the second wall member (16), whereby,
in use, the cables are being allowed to be evenly distributed around the longitudinal
axis (X) of the space (9) in a manner in which the cables (4, 4') are arranged with
essentially equal distance to the longitudinal axis (X) of the space (9).
2. A mounting (2) according to claim 13, wherein the mounting (2) comprises a third wall
member (18) arranged adjacent to the second wall member (16), where one or more apertures
(24, 26) extend through both a part of the second wall member (16) and through a part
of the third wall member (18).
3. A mounting (2) according to one of the preceding claims, wherein the mounting (2)
is configured to receive four cables (4, 4') and that two apertures (24, 26) extend
through both a part of the first wall member (14) and through the second wall member
(16) and that two apertures (24, 26) extend through both a part of the second wall
member (16) and through a part of the third wall member (18).
4. A mounting (2) according to on of the preceding claims, wherein the mounting (2) comprises
means (12) for securing the mounting (2) to a ceiling, a floor, a wall or a plate
member.
5. A mounting (50) for arranging a plurality of cables (4,4') through a core member (6)
having an essentially circular opening (8) and a cylindrical space (9) having a longitudinal
axis (X); said mounting (50) comprises:
- a plate-shaped base member (64) provided with a central aperture;
- a resilient and plate-shaped support member (60) configured to be received by the
central aperture in the base member (64); characterised in that
- a plurality of cylindrical apertures (54) being provided in the base plate (64)
at the periphery of the central aperture, where each cylindrical aperture (54) is
configured to receive a cable (4, 4'), where an aperture (56) is provided in the support
member (60), which aperture (56) is configured to receive a plug member (74), where
the support member (60) is configured to be radially extended and hereby pressing
the support member (60) towards the cables (4, 4') when the plug member (74) is inserted
into the aperture (56) in the support member (60); whereby, in use, the cables are
being allowed to be evenly distributed around the longitudinal axis (X) of the space
(9) in a manner in which the cables (4, 4') are arranged with essentially equal distance
to the longitudinal axis (X) of the space (9).
6. A mounting (2, 50) according to one of the preceding claims, wherein the mounting
(2, 50) comprises a first mounting wall (76) and a second mounting wall (76') extending
parallel to the first mounting wall (76).
7. A mounting (2, 50) according to claim 6, wherein the first mounting wall (76) and
the second mounting wall (76') are mechanically connected to one another by using
a number of attachment means (70, 72, 66, 66') extending through the first mounting
wall (76) and the second mounting wall (76').
8. A mounting (2, 50) according to one of the preceding claims, wherein the mounting
(2, 50) comprises an additional mounting member (40) configured to receive one or
more cables (4, 4') and guide the cable(s) (4, 4') through a current transformer,
where the additional mounting member (40) is attached to a base member (12) or to
a mounting wall (76, 76').
9. Use of a mounting (2, 50) according to any of the preceding claims for arranging a
plurality of cables when measuring the electric power through the cables by using
a current transformer.