IS 1180 energy efficiency level 2 transformer manufacturers in india

Prestige Quality energy efficiency level 2 as per IS 1180:2014 (Part I) suppliers in africa, view energy efficiency level of transformer price in india

As per the Electrical Transformer  or the Quality Control Order, it is mandatory that No Electrical Transformers will be manufactures by the energy efficiency level 2 transformer manufacturers in India for store for sale, selling or distribution for those products which do not confirm to the specified standard.

energy efficiency level 2 transformer manufacturers in india

 

 

energy efficiency level 2 transformer manufacturers in india
energy efficiency level 2 transformer manufacturers in india
is 1180 energy efficiency level 2 transformer
is 1180 energy efficiency level 2 transformer
Energy efficient transformer manufacturers in India
Energy efficient transformer manufacturers in India

 

World-Class Energy efficient transformer manufacturers in India, is 1180 energy efficiency level 2 Exporter in india

The revised IS 1180 (Part 1): specification covers various aspects such as  engineering, manufacture, stage testing, assembly, as well as inspection and testing before supply and delivery at site. Typically the sites is 1180 energy efficiency level 2  where there are immersions of mineral oil, natural air 11/0.433 – 0.250 KV Distribution Transformers. These energy efficiency level of transformer have been meant for outdoor use in power distribution systems with nominal system voltages.

In the revised session the different categories of energy transformers have been discussed. According to these categories the transformers have been divided, as level one, two and three. In revised IS 1180 specification there are three energy efficiency levels and for each categories, maximum values of total losses have been defined on basis of both 50% load as well as 100% load.

We are one of the leading Energy effiecient transformer manufacturers in India.

 

what is energy efficiency level 2 transformer ?

High-efficiency transformers make financial benefits for the society. Other than diminished greenhouse gas emanations, they progress reliability and deliver possibly longer benefit life by bringing down temperature rises through energy-efficiency advancements. India has, by presently, received the universal IEC standards as well as presented star naming for chosen categories of transformers.Most power losses happen within the transformer core made up of magnetic steel or within the electrical coils or windings of either aluminium or copper.Copper diminishes load loss, since it could be a more proficient conductor.

The significant Indian standard for distribution transformers (DTs) IS:1180/1989 has been changed within the year 2014 as IS:1180 (Part1)/2014 by Bureau of Indian Standard (BIS) subsequently superseding IS:1180 (Portion 1 and 2)/1989 both for fixed and non-sealed sort. This standard advance prescribes numerous reviewing with respect to vitality effectiveness, i.e. three energy-efficiency levels: level 1, level 2 and level 3 of transformers comparing to 3 star, 4 star and 5 star named transformers separately, as endorsed by BEE (moreover as per CEA required rules)

 

energy efficiency level 2 transformer manufacturers in india

 

 

is 1180 energy efficiency level 2 transformer specification

Phase Three Phase
Frequency 50 Hz
Winding Material Copper/Aluminium
Ratings Upto 200 kVA
Primary voltage Upto 11000 V
Secondary Voltage 433 V
Temperature Rise 35 C / 40 C
energy efficiency level 2 transformer manufacturers in india export to Tanzania, India, Africa, Rwanda, Kenya, Nigeria, Bangladesh, Malaysia Malawi, Nepal, Uganda

 

Principal Parameters

Sl.
No.

Item

Specification

1.

Continuous rated
capacity

5 KVA

10 KVA

16 KVA

25 KVA

63 KVA

100 KVA

200 KVA

500 KVA

2.

System voltage (max.)

12 kV (Line
to Line)

12 kV

12 kV

12 kV

12 kV

12 kV

12 kV

12 kV

3.

Rated voltage HV

11 kV

11 kV

11 kV

11 kV

11 kV

11 kV

11 kV

11 kV

4.

Rated voltage LV

250 V

433-250 V

433-250 V

433-250 V

433-250 V

433-250 V

433-250
V

433-250 V

5.

Line current HV

0.454 A

0.525 A

0.84 A

1.31 A

3.306 A

5.25 A

10.50 A

26.25 A

6.

Line current LV

20.0 A

13.3 A

21.33 A

33.33 A

84.0 A

133.0 A

266.0 A

665.0 A

7.

Frequency

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

50 c/s +/-
5%

8.

No. of Phases

Single

Three

Three

Three

Three

Three

Three

Three

9.

Connection HV

Single

Delta

Delta

Delta

Delta

Delta

Delta

Delta

10.

Connection LV

Individual

Star (Neutral brought
out)

Star (Neutral brought
out)

Star (Neutral brought
out)

Star (Neutral brought
out)

Star (Neutral brought
out)

Star (Neutral brought
out)

Star (Neutral brought
out)

11.

Vector group

Dyn-11

Dyn-11

Dyn-11

Dyn-11

Dyn-11

Dyn-11

Dyn-11

12.

Type of cooling

ONAN

ONAN

ONAN

ONAN

ONAN

ONAN

ONAN

ONAN

 

Sl.
No.

Item

Specification

13.

Tap                      changing arrangement

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable

-7.5 % to
+10%     in
steps    of
2.5 %

-7.5 % to
+10%       in
steps of 2.5
%

14.

Noise   level   at           rated
voltage and frequency

48db

48 db

48 db

48 db

51db

51db

55 db

56 db

15.

Permissible temperature rise over ambient

  1. Of top oil measured by thermometer
  2. Of         winding

measuredby resistance

 

 

30Deg.C

35Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35 Deg.C

40 Deg.C

 

 

35Deg.C

40Deg.C

16

Minimum clearances in air of bushing terminals with connectors fitted in mm.

 

HV Phase to Phase

255

255

255

255

255

255

255

255

 

HV Phase to Earth

205

205

205

205

205

205

205

205

 

LV Phase to Phase

75

75

75

75

75

75

75

 

LV Phase/ Neutral                 to
Earth

75

55

55

55

55

55

55

55

17

Basic   Insulation          Level
(Minimum)

95 KV

95 KV

95 KV

95 KV

95 KV

95 KV

95 KV

95 KV

 

energy efficiency level of transformer price

 For Final is 1180 energy efficiency level 2 transformer price Please Mail Us on info@rajasthanpower.in

 

A Full Range Of Energy Efficient Distribution Transformers manufacturers in india

 

Energy efficient transformer Technical Data

Star Rating Distribution Transformers with Energy efficiency level 2 as per IS 1180:2014 (Part I)

  • Maximum Ambient Temperature=45°C
  • Oil temperature Rise: 35°C
  • Winding Rise: 40°C
  • Tap switch: NIL(For 16 KVA to 100 KVA)
  • Type Of Winding Aluminum wound Off circuit Tap switch: +5% to -5% @ 2.5%(For 160 & 200 KVA)

Energy efficiency level 2 transformer diagram

 

Capacity in KVA

5

10

16

25

63

100

200

500

 

Energy Efficiency Level -1

Maximum No Load
Losses

15

45

60

75

150

200

310

550

Maximum total losses at
50% loading

40

72

150

210

380

520

890

1600

Maximum *total losses
at 100% loading

115

270

480

695

1250

1800

2700

4750

 

Energy Efficiency Level -2

Maximum No Load
Losses

15

40

50

60

125

170

270

545

Maximum total losses at
50% loading

35

65

135

190

340

475

780

1510

Maximum *total losses
at 100% loading

95

240

440

635

1140

1650

2300

4300

 

is 1180 energy efficiency level 2 transformer For Both Stack/Wound Core:

 

Parameters

5
KVA

10
KVA

16
KVA

25
KVA

63
KVA

100
KVA

200
KVA

500
KVA

Minimum Radial clearance of
LV Coil to Core in mm

3.5

3.5

3.5

3.5

3.5

4

4

4

Minimum radial clearance
between LV coil to HV coil in mm

11

11

11

11

11

11

11

11

Phase to phase clearance in mm between HV conductors with a provision of minimum of 2 x 1 mm press board to
cover the tie rods.

N.A.

10

10

10

10

10

10

10

Minimum electrical clearance between inside surface of the Tank and outside edge of the winding
in mm

30

30

30

30

30

30

30

30

End Insulation, Coil end to
Earth in mm

25

25

25

25

25

25

25

25

No. of Coils LV per Phase

1

1

1

1

1

1

1

1

Minimum No. of HV Coils up to 500 KVA (Cross over
winding) – for Stack core

1

4

4

4

4

4

4

4

-     Do – for Wound core

1

1

1

1

1

1

1

1

Minimum No. of axial wedges between LV and HV
winding equi -spaced around

6

6

6

6

6

8

8

8

 

energy efficiency level 2 transformer Toc Formula For Distribution Transformer..

  • TOC (Total Owning cost) = IC+ (A X Wi ) +(B X Wc)
  • IC = Initial cost (unit end cost without tax) of transformer as quoted by the bidder.
  • Wi  = No Load losses quoted by the bidder in Watt
    Wc  = Full load losses at 75 °C quoted by the bidder in Watt
  • A Factor = Cost of no load losses in Rs/ Watt
    B Factor = Cost of full load losses at 75 °C in Rs. / Watt

Details of Factor A& Factor B for different rating distribution transformers are as under.

Sr.
No

Capacity

Level

Factor A
(Rs./Watt)

Factor B
(Rs./Watt)

1

5 KVA to 500 KVA

Level 1

136.54

82.85

2

5 KVA to 500 KVA

Level 2

246.76

136.46

 

energy efficiency level 2 transformer Evaluation Criteria

Distribution Transformer in KVA

Level 1 rated Transformer

Level 2 rated Transformer

*Total loss in watts at 100 % loading should not be lower than
(Not equal to)

*Total loss in watts  at 100
%        loading should not be
higher than

*Total loss in watts at 100 % loading should not be lower than (Not equal to)

*Total loss in watts at 100
%      loading should not be
higher than

5

95

115

75

95

10

240

270

215

240

16

440

480

400

440

25

635

695

595

635

63

1140

1250

1050

1140

100

1650

1800

1500

1650

200

2300

2700

2100

2300

500

4300

4750

4100

4300

 

is 1180 energy efficiency level 2 transformer Percentage Impedance

Rating of Transformer in KVA

Percentage Impedance at 750C

5 KVA

4.00 %

10 KVA to 100 KVA

4.50 %

200 KVA & 500 KVA

4.75%

 

energy efficiency level 2 transformer Temperature Rise

Temperature Rise

5 KVA

10 to 500 KVA

Top    oil    temperature
thermometer

rise

measured

by

30 deg.C

35 deg.C

Winding     temperature
resistance

rise

measured

by

35 deg.C

40 deg.C

 

is 1180 energy efficiency level 2 transformer Routine Tests

  1. Measurement of winding resistance (at all taps if applicable) [IS2026 (Part1)].
  2. Measurement of voltage ratio, polarity, phase sequence and vector group[IS2026(Part1)].
  3. Measurement of short-circuit impedance (principal tapping, when applicable)
  4. Load losses at rated current and normal frequency,at50 % and100 % load [IS2026(Part1)].
  5. Measurement of no-load loss and current [IS2026(Part1)].
  6. Measurement of insulation resistance [IS2026(Part1)].
  7. Induced over-voltage withstand test[IS2026 (Part3)].
  8. Separate-source voltage withstand test [IS2026(Part3)].
  9. Pressure and vacuum test(as per IS: 1180-2014).
  10. Oil leakage test(as per IS: 1180-2014).
  11. Neutral current measurement, shall not be more than 2% of full load current (CEA Guideline 2008 clause no 34.9)
  12. Oil samples (one sample per lot) to comply with IS 1866.
  13. Measurement of no load losses and magnetizing current at rated frequency and at 90%, 100%and 112.5% voltage

 

Highlighted Points For Is 1180 (Part 1) : 2014

In revised IS specification, losses for each rating for each category have been defined in three levels which are denoted by as follows;

  • a) Energy Efficiency Level 1
  • b) Energy Efficiency Level 2
  • 3) Energy Efficiency Level 3

In each level maximum losses (No Load Loss + Load Loss) at 50% load & 100% load have been specified for each rating in all categories.

a) Three phase distribution transformers upto and including 200KVA, 11KV Class

Sl. No.
Rating (KVA)
% Z
Energy Efficiency Level 1
Energy Efficiency Level 2
@ 50%
@ 100%
@ 50%
@ 100%
1
16KVA
4.5%
150W
480W
135W
440W
2
25KVA
4.5%
210W
695W
190W
635W
3
63KVA
4.5%
380W
1250W
340W
1140W
4
100KVA
4.5%
520W
1800W
475W
1650W
5
160KVA
4.5%
770W
2200W
670W
1950W
6
200KVA
4.5%
890W
2700W
780W
2300W

 

b) Three phase distribution transformers Higher than 200KVA upto and including 2500KVA, 11KV Class

Sl. No.
Rating (KVA)
% Z
Energy Efficiency Level 1
Energy Efficiency Level 2
@ 50%
@ 100%
@ 50%
@ 100%
1
250KVA
4.5%
1050W
3150W
980W
2930W
2
315KVA
4.5%
1100W
3275W
1025W
3100W
3
400KVA
4.5%
1300W
3875W
1225W
3450W
4
500KVA
4.5%
1600W
4750W
1510W
4300W
5
630KVA
4.5%
2000W
5855W
1860W
5300W
6
1000KVA
5.0%
3000W
9000W
2790W
7700W
7
1250KVA
5.0%
3600W
10750W
3300W
9200W
8
1600KVA
6.25%
4500W
13500W
4200W
11800W
9
2000KVA
6.25%
5400W
17000W
5050W
15000W
10
2500KVA
6.25%
6500W
20000W
6150W
18500W

 

c) Single Phase distribution transformers upto and including 25KVA, 11KV Class

 

Sl. No.
Rating (KVA)
% Z
Energy Efficiency Level 1
Energy Efficiency Level 2
@ 50%
@ 100%
@ 50%
@ 100%
1
5KVA
4.0%
40W
115W
35W
95W
2
10KVA
4.0%
70W
190W
60W
170W
3
16KVA
4.0%
95W
265W
82W
224W
4
25KVA
4.0%
125W
340W
110W
300W

Further to above it is also observed that IS 1180 are now also applicable for 22KV & 33KV class transformers, losses values for 22KV & 33KV class transformers shall be applicable as per below clause:

  • a) For transformers having voltage class above 11KV and upto and including 22KV, the permissible total loss value shall not exceed by 5% of the maximum total losses values mentioned in table a) & b) for three phase.
  • b) For transformers having voltage class above 22KV and upto and including 33KV, the permissible total loss value shall not exceed by 7.5% of the maximum total losses values mentioned in table a) & b) for three phase.
  • c) For transformers having voltage class above 11KV and upto and including 22KV, the permissible total loss value shall not exceed by 7.5% of the maximum total losses values mentioned in table c) for single phase.
  • d) For transformers having voltage class above 22KV and upto and including 33KV, the permissible total loss value shall not exceed by 10% of the maximum total losses values mentioned in table c) for single phase.

 

types of industrial transformer available

 

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