FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
As amended by the Patents (Amendment) Act, 2005
AND
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION
(See section 10 and rule 13)
TITLE OF THE INVENTION
An improved snout assembly for out-coming lead of high voltage.
APPLICANTS:
Crompton Greaves Limited, CG House, Dr. Annie Besant Road, Worli, Mumbai - 400030, Maharashtra, India, an Indian Company
INVENTOR:
Effendi Yuhan of Crompton Greaves Limited, PT, CG Power Systems, Indonesia, Menara Permai Kav. 10, Cileungsi Bogor 16822, Indonesia; an Indonesian National
PREAMBLE TO THE DESCRIPTION:
The following specification particularly describes the nature of this invention and the manner in which it is to be performed:

FIELD OF THE INVENTION:
This invention relates to the field of electrical and electronics engineering.
Particularly, this invention relates to the field of transformers.
Specifically, this invention relates to an improved snout assembly for out-coming lead of high voltage.
BACKGROUND OF THE INVENTION:
A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the first or primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field through the secondary winding.
If a load is connected to the secondary, current will flow in the secondary winding, and electrical energy will be transferred from the primary circuit through the transformer to the load. In an ideal transformer, the induced voltage in the secondary winding (vs) is in proportion to the primary voltage (Vp) and is given by the ratio of the number of turns in the secondary (AQ to the number of turns in the primary (Np) as follows:


In the transformer, there are leads which are come out from a High Voltage (HV) top winding. Typically, they curve upwards and a snout in the transformer assembly is formed so as to form an outwards channel for support of the leads. The snout was at an angle of 45 degrees to 55 degrees.
It was observed that the creepage distance was too near between High Voltage Top Lead and Fine winding.
Hence, there was a need for an improved snout assembly with greater creepage distance and / or better insulation.
OBJECTS OF THE INVENTION:
An object of the invention is to provide an improved snout for a transformer.
Another object of the invention is to provide an improved snout, for a transformer, with improved creepage distance.
Yet another object of the invention is to provide an improved snout, for a transformer, with improved insulation.
Still another object of the invention is to provide an improved snout, for lead insulation, for a transformer.
An additional object of the invention is to provide an improved snout, for lead insulation, for a transformer, for providing improved creepage distance.
Yet an additional object of the invention is to provide an improved snout, for lead insulation, for a transformer for providing improved insulation.

SUMMARY OF THE INVENTION:
According to this invention, there is provided an improved snout for out-coming lead of high voltage, said snout assembly comprises an interfacing member adapted to interface said assembly with a machine and further comprises a snout extending out of said interfacing member in a substantially orthogonal disposition, characterised in that, the junction of said interfacing member and said snout includes an insulation medium, according to pre-defined patterns.
According to this invention, there is also provided a machine with an improved snout assembly for out-coming of high voltage, said snout assembly comprises an interfacing member adapted to interface said assembly with a machine and further comprises a snout extending out of said interfacing member in a substantially orthogonal disposition, characterised in that, the junction of said interfacing member and said snout includes an insulation medium, according to pre-defined patterns, said lead wire extending horizontally outwards of said machine along said snout and moving vertically upwards by means of a bending action at the end of said snout.
Typically, said snout is a channel protruding out the body of said machine.
Typically, said snout is a half-cylindrical channel, bent from flat material, protruding out the body of said machine.
Typically, said interfacing member is a substantially rectangular member adapted to be located on to a wall of said machine.
Typically, said snout is a substantially horizontal snout extending out of said machine.

Typically, said insulation medium is an insulation creep paper.
Typically, said insulation medium is located at the U-shaped junction of said snout and said interfacing member.
Typically, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member.
Preferably, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside.
Preferably, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outside.
Preferably, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside, said insulation medium being 0.6mm/side at its operative inner side.
Preferably, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outer, said insulation medium being 2mm /side at its operative outer side.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
The invention will now be described in relation to the accompanying drawings, in which:
Figures 1 to 4 illustrate various views of a snout assembly;

Figure 5 illustrates a snout assembly attached to an electrical machine; and
Figure 6 illustrates a 3-dimensional view of the snout assembly.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
According to this invention, there is provided an improved snout assembly for out-coming lead of high voltage.
Figures 1 to 4 illustrate various views of a snout assembly.
Figure 5 illustrates a snout assembly attached to an electrical machine.
Figure 6 illustrates a 3-dimensional view of the snout assembly.
In accordance with an embodiment of this invention, there is provided a snout (12) adapted to be extended out of an electrical machine (14). The snout is a channel protruding out the body of the machine. Typically, it is a half-cylindrical channel, with its top lateral half cut off. The snout includes an interfacing member (16) which is a substantially rectangular member which is on the wall of the machine. The snout extends, thereof. The snout is substantially horizontal and extends out of the machine. As shown in Figure 5 of the accompanying drawings, the lead wire (18) extends horizontally outwards along the snout and moves vertically upwards by means of a bending action at the end of the snout.
In accordance with another embodiment of this invention, the junction of the interfacing member and the snout includes an insulation medium (20), according to

pre-defined patterns. The insulation medium is an insulation creep paper. It is located at the U-shaped junction of the snout and the interfacing member. The insulation medium circumferentially envelopes the U-shaped junction from the inside as well as from the outside. Preferably, at its operative inner side, insulation medium is 0.6mm/side. Preferably, at its operative outer side, insulation medium is 2mm/side.
Due to this invention, there is no need to make slot or groove on High Voltage (HV) potential ring. The clearance distance between top HV lead out can be maintained.
The technical advancement of this invention lies in provisioning an insulation medium at the snout for HV lead out wires, which insulation medium is in a U-shaped format. On the operative inner side, the insulation medium is of 0.6mm/side. On the operative outer side, the insulation medium is of 2mm/side. Also, due to the snout of this invention, clearance distance between HV lead out can be maintained
While this detailed description has disclosed certain specific embodiments of the present invention for illustrative purposes, various modifications will be apparent to those skilled in the art which do not constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

We claim,
1. An improved snout assembly for out-coming lead of high voltage, said snout assembly comprising an interfacing member adapted to interface said assembly with a machine and further comprising a snout extending out of said interfacing member in a substantially orthogonal disposition, characterised in that, the junction of said interfacing member and said snout includes an insulation medium, according to pre-defined patterns.
2. An improved snout assembly as claimed in claim 1, wherein said snout is a channel protruding out the body of said machine.
3. An improved snout assembly as claimed in claim 1, wherein said snout is a half-cylindrical channel, bent from flat material, protruding out the body of said machine.
4. An improved snout assembly as claimed in claim 1, wherein said interfacing member is a substantially rectangular member adapted to be located on to a wall of said machine.
5. An improved snout assembly as claimed in claim 1, wherein said snout is a substantially horizontal snout extending out of said machine.
6. An improved snout assembly as claimed in claim 1, wherein said insulation medium is an insulation creep paper.
7. An improved snout assembly as claimed in claim 1, wherein said insulation medium is located at the U-shaped junction of said snout and said interfacing member.

8. An improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member.
9. An improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside.
10. An improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outside.
11. An improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside, said insulation medium being 0.6mm/side at its operative inner side.
12. An improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outer, said insulation medium being 2mm /side at its operative outer side.
13. A machine with an improved snout assembly for out-coming lead of high voltage, said snout assembly comprising an interfacing member adapted to interface said assembly with a machine and further comprising a snout extending out of said interfacing member in a substantially orthogonal disposition, characterised in that, the junction of said interfacing member and said snout includes an insulation medium, according to pre-defined

patterns, said lead wire extending horizontally outwards of said machine along said snout and moving vertically upwards by means of a bending action at the end of said snout.
14. A machine with an improved snout assembly as claimed in claim 1, wherein said snout is a channel protruding out the body of said machine.
15. A machine with an improved snout assembly as claimed in claim 1, wherein said snout is a half-cylindrical channel, bent from flat material, protruding out the body of said machine.
16. A machine with an improved snout assembly as claimed in claim 1, wherein said interfacing member is a substantially rectangular member adapted to be located on to a wall of said machine.
17. A machine with an improved snout assembly as claimed in claim 1, wherein said snout is a substantially horizontal snout extending out of said machine.
18. A machine with an improved snout assembly as claimed in claim 1, wherein said insulation medium is an insulation creep paper.
19. A machine with an improved snout assembly as claimed in claim 1, wherein said insulation medium is located at the U-shaped junction of said snout and said interfacing member.

20. A machine with an improved snout assembly as claimed in claim 1, wherein said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member.
21. A machine with an improved snout assembly as claimed in claim 1 wherein, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside.
22. A machine with an improved snout assembly as claimed in claim 1 wherein, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outside.
23. A machine with an improved snout assembly as claimed in claim 1 wherein. said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the inside, said insulation medium being 0.6mm/side at its operative inner side.
24. A machine with an improved snout assembly as claimed in claim 1 wherein, said insulation medium circumferentially envelopes the U-shaped junction of said snout and said interfacing member, from the outer, said insulation medium being 2mm /side at its operative outer side.