FORM 2
THE PATENT ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
1. TITLE OF THE INVENTION:
A NOVEL TRANSFORMER FOR SINGLE PHASE SUPPLY WITH ENERGY CONSERVATION SYSTEM
2. APPLICANT:
(a) NAME: UTTAR GUJARAT VIJ COMPANY
LIMITED
(b) NATIONALITY: An Indian Company
(c) ADDRESS: Visnagar Road,
Mehsana - 384 001
North Gujarat, India.
3. PREMABLE TO THE DESCRIPTION

PROVISIONAL
The following specification describes the invention.

COMPLETE
The following specification particularly describes the invention and the manner in which it is to be performed.

The Present invention relates to a system and a novel transformer, which is invented for providing single phase power supply with restricted enhancement and additional feature of energy conservation. The Present invention is used for providing continues / uninterrupted power supply. The Novel transformer for catering single phase power supply with energy conservation system is applicable exclusively in POWER sector, especially where the motive power load shedding is a compulsion, and the same is practically difficult, due to misuse of the energy; by means of unauthorized usage of phase converters.
It concerns a variable transformer through which, absolute continuous output voltage is achieved (without any gaps-voids) and the output voltage (the given voltage) can be any (according, of course, to the relative calculation), depending upon the value of the input voltage.
Further more, it has the advantage of the given current intensity been maintained steady during the supply, for any nominal value of the voltage supplied.
Initially, when ample power supply was available, all rural feeders were given 24 hours 3 phase power supply (till late '80s). With the increasing agricultural demand and rapid load growth, it was increasingly difficult to meet the demand due to paucity of generation capacity. Load-shedding and load-roistering was introduced itself. The number of no-power supply hours increased to 8 to 12 hours and rural feeders were necessarily required to be switched off during morning and evening peak hours.
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In order to meet the requirements of rural populations for power supply during evening peaks, a two-phase power supply system instead of three-phase power supply was introduced. However, in this system, only one phase was getting full voltages and remaining two phases were getting dim voltages on LT side.
It was, therefore, decided that the line side phase, which has been disconnected, may be looped with connected phase on load side, so that full voltages are available at least in two phase in the LT network so as to minimize the low voltage problems for residential connections in the villages. The load roistering system was modified to 8 to 14 hours of 3-phase power supply and 10 to 12 hours of 1-phase power supply and 3 to 4 hours of 'No-power' supply as per the availability of generation.
This system worked satisfactorily for some time; however, with the passage of time, the Agriculture Consumers started using power supply for irrigation purpose with the use of phase converters. The usage of phase converters became so rampant that the load during single phase power supply was even more than three phase power supply, as the agricultural connections are scattered over a large area, it was difficult to stop them using phase converters. The agricultural consumers started pumping out water more and more, increasing the area of irrigation and depleting the ground water levels. This has tremendously increased the energy requirement on rural feeders; pumps of higher and higher capacity were deployed by agricultural consumer's unauthorised. This has deteriorated the power supply
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system resulting into the failure of distribution transformers, generation of negative sequence components, low voltages and poor quality of power supply. Any measures for energy conservation or water conservation were futile, as the agricultural tariff was on flat horsepower base. There was no incentive to agricultural consumers for saving energy or water.
The conventional systems mentioned above, did not serve the purpose as the systems could not control the misuse of energy by phase converter or deprived of the power supply during the load shedding period to the villages / hamlets / farm houses.
And hence, it was necessary to introduce full proof system, which can
restrict the misuse of energy by phase converters as well as cater the
energy requirement to lighting consumers of villages / hamlets / farm
houses.
To overcome such problem the present system of A Novel
Transformer For Catering Single Phase Supply With Restricted
Enhancement With Energy Conservation System, is invented.
In Gujarat, all the villages have started getting uninterrupted 3-phase power supply, with the segregation of the Agriculture load from the rural load (Villages). The level of satisfaction of rural consumers due to 24 hours power supply has gone up and a qualitative change in the standard of living has taken place due to increased job opportunities, working hours and recreational facilities. The aspirations of the rural population, is still living in small scattered hamlets and in the filed. So
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far, they were getting 8 hours three phase power supply and 10 to 14 hours single phase power supply, but with declaring the existing rural feeders as pre-dominantly agricultural feeders and restricting three phase power supply on these feeders to only 8 hours. There is no single phase power supply for remaining hours of the day, this has made their life difficult and they have been persistently demanding at least single phase power supply for rest of the hours.
With the above and other objects in view which will become apparent from the following detailed description, some preferred forms of the invention are shown in the drawings in which:
Fig. 1 represents the elevation view of the novel transformer for
the said system.
Fig. 2 represents the side view of the novel transformer for the
said system.
Fig.3 represents the plan view of the novel transformer for the
said system.
Fig.4 schematic diagram for the novel transformer for the said
system, using earth with LT CT (Low Tension Current Transformer)
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Fig.5 schematic diagram for the novel transformer for the said
system, using neutral of power transformer with LT CT (Low Tension Current Transformer)
Fig.6 schematic diagram connection for the novel transformer
for the said system using earth with 11 kv CT (Current Transformer)
Fig.7 schematic diagram connection for the novel transformer
for the said system using natural of power transformer with 11 kv CT(Current Transformer)
Fig.8 schematic diagram for the novel transformer for the said
system connected between two phase with 11 kv CT(Current Transformer)
The novel transformer for catering single phase power supply with energy conservation system with their elevation, top and side view is shown in Fig.1, Fig.2 and Fig.3. This system is an inactive part of the novel transformer for energy conservation system, which works as a container of all the internal active parts and oil. The tank of the novel transformer is made from mild steel sheet as per requirement.
Normally, a conventional distribution Transformer consists of three High Voltage (11 / 22 KV) bushings and four Low Voltage (430v) bushings, where as, in our novel transformer for energy conservation
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system, there are only three numbers of High Voltage bushings (12kV).
Entire system is installed in Sub Station only, means it remains within the control of power supply utility. It is installed at the sending end of a feeder only, and the remaining portion of the network remains unaltered, with required results.
Three phase transformers are widely used in power supply and other applications. They typically comprise primary and secondary windings for each phase mounted on a three legged core.
The turns ratio of a transformer is the ratio of the number of turns of its both the windings divided by the number of turns of the primary winding. The turns ratio is equivalent to the step up or step down voltage ratio of the transformer. By measuring the turns ratio of a transformer from its performance and comparing this with its rated voltage a good indication of the condition of the transformer can be obtained.
The internal part of the novel transformer is totally active part which consists of winding, either aluminium or copper wound, core, either CRGO or amorphous and oil. The novel transformer transfers electrical energy from one circuit to another circuit. Winding part is distributed in various coils and assembled in 'sandwich' configuration. In the present invention novel transformer for single phase supply and energy conservation, voltage ratio is maintained in
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the range of 6 KV to 7 KV / 9.5 KV to 12 KV, current rating is ranged into 10 AMP to 70 AMP, flux density is from 1.4Wb to 1.75Wb, the normal no load loss is ranged above 100W, full load losses at 75 deg. C is above 800 W. The Current density used for primary/secondary winding is ranged between 0.5 A/sq.mm to 3.0 A/sq.mm. in the present system clearance between primary & secondary windings are from 4 mm to 20 mm, secondary & primary coil axial spacers are from 5 mm to 25 mm, phase - phase is 5 mm to 50 mm, end insulation clearance to earth is from 5mm to 100 mm and any point of winding to tank is from 10 mm to 100 mm. the percentage impedance at 75 deg. c is maintained from 2 to 5% / 6 to 15%.
In the present invention system length of the transformer is from 400mm to 1000mm, breadth is from 250mm to 450mm and height is from 700mm to 1500mm, Core diameter is from 80 to 160mm, height of window is from 300 to 800mm, center-to-center distance of the core is from 100mm to 350mm. In the present invention system 1 to 20 secondary & primary coils are provided per limb and the axial length of secondary & primary winding is ranged form 15mm to 800mm. Inner and outer diameter of secondary and primary winding are maintained from 100mm to 170mm and 125mm to 350mm respectively. The total cross section of all conductors of winding is from 1.2 Sq.mm to 20 Sq.mm for primery and 2.5 Sq.mm to 40 Sq.mm for secondary
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The present invention provides single phase supply with control of misuse of energy with phase converter. Application of the present invention is explained in Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8.
In Fig. 4, schematic diagram connections for the novel transformer for the said system using earth with LT CT. The present invented system is connected between any one phase of sub station Power Transformer and Ground. The system is installed on double pole structure. A Gang Operated Changeover switch (GOD) is placed in the circuit as shown in the diagram fig.4.
By operating the GOD in one position three phase power supply is fed to the feeder and in second position, single phase is fed to novel invented transformer and a novel invented transformer appears in circuit and feeds single phase power to entire feeder for single phase lighting use.
Low Tension Current Transformer (LT CT) having 3 kv voltage class is kept in the earthing circuit of novel transformer as shown in the diagram. Out put of the CT is fed to an IDMT relay which is separately installed for the system with feeder control panel. This controls the feeder during single phasing.
In Fig. 5 schematic diagram for the novel transformer for the said
system using neutral of power transformer with LT CT (Low Tension Current Transformer).
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In the present application, the novel transformer is connected between any one phase and the neutral of the sub station Power Transformer. The novel transformer is installed on double pole structure.
A Gang Operated Changeover switch (GOD) is placed in the circuit as shown in the diagram.
By operating the GOD in one position, three phase power supply is fed to the feeder and in second position, single phase is fed to the novel transformer and the novel transformer comes in circuit and feeds single phase power to entire feeder for singer phase lighting use.
Low Tension Current Transformer (LT CT) having 3 kv voltage class is kept in the neutral circuit of the novel transformer as shown in the diagram. Out put of the CT is fed to an IDMT relay which is separately installed for the system with feeder control panel. This controls the feeder during single phasing.
In Fig.6, schematic diagram connection for the novel transformer for the said system is connected between any one phase and the neutral of the sub station Power Transformer. The novel transformer is installed on double pole structure. A Gang Operated Changeover switch (GOD) is placed in the circuit as shown in the diagram Fig.6. By operating the GOD in one position, three phase power supply is fed to the feeder and in second position, single phase is fed to novel transformer and our novel transformer comes in circuit and feeds single phase power to entire feeder for single phase lighting use. High Tension Current Transformer (HT CT) having 11 kv voltage class is kept in the live
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phase circuit of novel transformer, as shown in the diagram. Out put of the CT is fed to an IDMT relay which is separately installed for the system with feeder control panel; which controls the feeder during single phasing.
In Fig. 7, schematic diagram connection for the novel transformer for the said system is connected between any one phase and the neutral of the sub station Power Transformer. The novel transformer is installed on double pole structure. A Gang Operated Changeover switch (GOD) is placed in the circuit as shown in the diagram Fig. 7. By operating the GOD in one position, three phase power supply is fed to the feeder and in second position, single phase is fed to the novel transformer, then the novel transformer comes in circuit and feeds single phase power to entire feeder for singer phase lighting use. High Tension Current Transformer (HT CT) having 11Kv voltage class is kept in the live phase circuit of The Novel Transformer, as shown in the diagram. Out put of the CT is fed to an IDMT relay which is separately installed for the system with feeder control panel, which controls the feeder during single phasing.
In Fig.8 schematic diagram for the novel transformer for energy conservation system is connected between any two phase of the sub station Power Transformer. The novel transformer is installed on double pole structure. A Gang Operated Changeover switch (GOD) is placed in the circuit as shown in the diagram. By operating the GOD in one position, three phase power supply is fed to the feeder and in second position, single phase is fed to the novel transformer, then the
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novel transformer comes in circuit and feeds single phase power to entire feeder for singer phase lighting use.
High Tension Current Transformer (HT CT) having 11 kv voltage class is kept in the live phase circuit of the novel transformer, as shown in the diagram. Out put of the CT is fed to an IDMT relay which is separately installed for the system with feeder control panel; which controls the feeder during single phasing.
A NOVEL TRANSFORMER FOR CATERING SINGLE PHASE SUPPLY WITH ENERGY CONSERVATION supplies 24 hours power supply to the lighting consumers connected to the rural / predominant agriculture feeders and discharge social liability of supplying 24 hours power supply to all, which improves the level of costumer satisfaction. Besides, prominent features like reduction in distribution transformer failure, reduction in transmission and distribution losses, energy conservation (around 30%) elimination of theft of energy by using the phase converters as well as improvement in the quality of power supply, has made the system unique, innovative and inevitable. The simplicity and the benefits of the system has a cutting edge over the conventional system of the same purpose.
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We Claim:
1. A NOVEL TRANSFORMER FOR SINGLE PHASE SUPPLY WITH ENERGY CONSERVATION SYSTEM consists of three high voltage bushings (12Kv), wherein the novel transformer is characterized with voltage ratio is in the range of 6 KV to 7 KV/ 9.5 KV to 12 KV, current rating is ranged into 10 AMP to 70 AMP; flux density is from 1.4Wb to 1.75Wb; the normal no load losses are ranged above 100W; full load losses at 75 deg. C is above 800W; the current density used for primary / secondary winding is ranged between 0.5 A/Sq.mm to 3.0 A/Sq.mm; the clearance between primary & secondary windings are from 4 mm to 20 mm; the clearance between secondary & primary coil axial spacers are from 5 mm to 25 mm; the clearance between phase - phase is 5 mm to 50 mm; end insulation clearance to earth is from 5 mm to 100 mm; any point of winding to tank is from 10 mm to 100 mm; the percentage impedance at 75 deg. C is maintained from 2 to 5(YB terminals short) and 6 to 15%(RB terminals Short); length of the transformer is from 400mm to 1000mm; breadth is from 250mm to 450mm; height is from 700mm to 1500mm; core diameter is from 80 to 160mm; core window height is from 300 to 800mm; center-to-center distance of the core limbs, is from 100mm to 350mm; 1 to 20 secondary & primary coils are provided per limb and the axial length of secondary & primary winding is ranged form 15mm to 800mm; inner and outer diameter of secondary and primary winding are maintain from 100mm to 170mm and 125mm to 350mm respectively; the total cross section
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of all conductors of winding is from 1.2 Sq.mm to 20 Sq.mm for primery and 2.5 Sq.mm to 40 Sq.mm for secondary winding.
2. A NOVEL TRANSFORMER FOR SUPPLYING SINGLE PHASE
POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM
using earth with LT CT as claimed in claim 1 wherein system is connected between one phase of sub station power transformer and ground.
3. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER
SUPPLY WITH ENERGY CONSERVATION SYSTEM using neutral power transformer with LT CT as claimed in claim 1 wherein system is connected between any one phase and the neutral of the sub station power transformer.
4. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM as claimed in claim 2 and 3 wherein system is installed on double pole structure.
5. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM as claimed in claim 2 and 3 wherein gang operated changeover switch (GOD) is placed in the circuit.
6. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM using neutral power transformer with LT CT as claimed in claim 1 wherein
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system is connected between any one phase and the neutral of the sub station power transformer.
7. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM as claimed in claim 1 wherein internal part of the transformer is consists of winding either aluminium or copper wound.
8. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM as claimed in claim 1 wherein internal part of the novel transformer is consists with core either CRGO or amorphous.
9. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM as claimed in claim 1 wherein internal part of the novel transformer is consists with oil.
10. A NOVEL TRANSFORMER FOR SINGLE PHASE POWER SUPPLY WITH ENERGY CONSERVATION SYSTEM is as
substantially as herein described with reference to the foregoing description and the accompanying drawings.
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11. A NOVEL TRANSFORMER CONVERTED FROM FAIL DISTRIBUTION TRANSFORMER for single phase power supply with energy conservation system.
Dated this on 13th day of June 2007

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Abstract
A NOVEL TRANSFORMER FOR ENERGY CONSERVATION
SYSTEM supply 24 hours power supply to the lighting consumers connected to the rural / predominant agriculture feeders and discharge social liability of supplying 24 hours power supply to all, which improves the level of costumer satisfaction.
Besides, prominent features like reduction in distribution transformer failure, reduction in transmission and distribution losses, energy conservation (around 30%) elimination of theft of energy by using the phase converters as well as improvement in the quality of power supply, has made the system unique, innovative and in evitable. The simplicity and the benefits of the system has a cutting edge over the conventional system of the same purpose.