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  DISTRIBUTION TRANSFORMERS  

Single Phase Transformer

Applicable Standards
 

  • IEC (International Electro technical Commission)
  • ANSI (American National Standard Institution)
  • BS (British Standards)
  • IS (Indian Standard)
Specification
 
  make conventional type, 1 Phase, 50 Hz, Oil immersed,naturally cooled, Pole mounted / Platform mounted, double wound with Aluminium / Copper, Step up/Step down core type continuous duty transformers having no load voltage ratio from 5 KVA to 100 KVA upto 33 KV Class with ‘A’ Class Insulation and designed to withstand Short Circuit, & Impulse Test in accordance to ANSI / IEC / BS / IS. Completely self Protected type Transformers are also available for protection on both HV & LV Side. Details of Characteristics & dimensions of standard transformers with standard fittings manufactured in accordance with ANSI C 57 latest., readily available in stock and can be delivered within 1 weeks from the date of order confirmation. The temperature rise will be 60/65° C in Oil/Winding respectively over a maximum ambient temperature as per ANSI. The transformers will be manufactured as per ANSI C 57 latest, complete with fittings/accessories as stated below.


KVA Efficiency
(%)
Voltage
Regulation(%)
W
(mm)
D
(mm)
H
(mm)
Oil
(l)
Weight
(Kg)
5 97.60 2.05 400 520 770 12 69
10 98.00 1.79 450 570 800 17 97
15 98.23 1.56 480 600 850 23 120
25 98.25 1.58 530 620 1030 65 205
37.5 98.58 1.26 650 650 900 38 244
50 98.29 1.60 670 650 950 45 253
75 98.53 1.30 740 720 950 62 340
100 98.72 1.18 795 750 100 78 440
167 98.92 1.15 850 825 1065 116 675

 
  Note

Due to improvements continuously taking place in design, the details given may vary marginally in respect of No Load Losses, Load Losses and overall dimensions. However the variations will be within permissible limits as per Applicable Standards. The details given here are for standard transformer with standard fittings. The details may depend upon the optional fittings/specific requirement of customer. For details, Please contact our Marketing Office or fill our enquiry/feedback form.


Three Phase Tranformer

Applicable Standards

  • IEC (International Electro technical Commission).
  • ANSI (American National Standard Institution).
  • BS (British Standards).
  • IS (Indian Standard).
Description 

manufactures a wide range of distribution and power transformers ranging from 10 KVA to 5000 KVA. These transformers can be free breathing or hermetically sealed. Conventional transformers are fitted with a conservator with breather for free breathing while hermetically sealed are without breathing with bolted cover. Hermetically sealed transformers are totally maintenance free and are particularly suited for use in exposed outdoor environments such as moisture, salt or dust laden atmospheres. They are used extensively in chemical plants, oil and gas terminals where poor accessibility makes regular maintenance undesirable. Transformers immersed in synthetic coolants are suitable for use indoors, with adequate ventilation, or near to the load centre where oil would not be considered environmentally acceptable. The liquid filled transformers can be supplied with cooling either by corrugations on the side of the tank or Pressed steel radiators mounted on tank body. Transformers can be filled with either oil or one of several low flammability synthetic fluids such as midel. Both types can be supplied with HV and LV Switchgear incorporated into substations. can supply conventional/hermetically sealed/bolted type, indoor/outdoor type, pole/platform mounted 3 phase, 50/60 Hz, oil immersed, ONAN/ONAF/ OFWF cooled, step up/step down, double wound with Al/Cu conductor, Continuous duty transformers from 5 KVA to 20 MVA upto 33 KV Class with ‘A’ Class Insulation and designed to withstand Short Circuit, & Impulse Test in accordance to IEC / BS / ANSI / IS / NEEMA.

Standard Transformers 

In order to meet the growing demand of transformers with short deliveries, have developed a separate production system called ( Standard Transformers). This range of are manufactured with standard losses and in accordance to IS : 2026 latest. can supply a comprehensive range as depicted below in short delivery periods. The second of our production system known as Repeat transformer enables us to reproduce any of our previous transformer designs again in the shortest time with the object of keeping delivery time to a minimum. Details of Characteristics & dimensions of standard transformers with standard fittings manufactured in accordance with IS : 2026 latest., and can be delivered in short delivery period upon order confirmation.

Specification for ( Standard Transformer) 

make outdoor type, 3 phase, 50 Hz, oil immersed, conventional bolted cover, ONAN cooled, Pole / Platform mounted, double wound with Cu conductor, step up, core type continuous duty transformers with + 2.5% to - 7.5% taps on HT side for HT variation and leads to be brought out on off circuit tap changing switch with locking device and outside indicator arrangement and connected in delta/star as per Vector group ref. Dyn11. The temperature rise will be 50/55° C in Oil/Winding respectively over a maximum ambient temperature as per IS. The transformers will be manufactured as per IS: 2026 latest, complete with fittings/accessories as stated below.

Rated Primary Voltage : 11KV Secondary Voltage : 416/240V ONAN Cooled, Outdoor type, Oilimmersed Copper Wound, Open Type with Conservator
Capacity
kVA
Efficiency at 100%
load (%)
Voltage Regulation P.F.= 1 (%) Noise Level
db (A)
: 1m
Outline Dimension Approx.(mm) Oil qty (Litres) Total weight (Kgs.)
P.F.=1.0 P.F.=0.8 H L W
50 97.48 96.85 2.26 45 1300 1080 520 115 420
100 97.71 97.14 2.06 46 1400 1230 550 150 600
160 98.19 97.73 1.63 47 1480 1290 630 210 825
200 98.30 97.88 1.52 47 1580 1340 675 260 990
250 98.32 97.90 1.51 48 1655 1385 750 320 1200
315 98.33 97.92 1.50 50 1735 1385 830 360 1400
400 98.44 98.05 1.42 50 1800 1410 950 370 1600
500 98.50 98.13 1.37 52 1850 1520 1000 450 1920
630 98.62 98.27 1.31 52 1920 1620 1030 530 2230
800 98.56 98.20 1.37 54 2000 1830 1030 675 2700
1000 98.63 98.29 1.32 54 2100 2040 1040 780 3160
1250 98.72 98.40 1.29 56 2140 2070 1210 840 3400
1500 98.78 98.48 1.24 56 2240 2150 1240 970 3900
2000 98.81 98.51 1.22 52/3cm 2350 2230 1390 1080 4625
2500 98.88 98.60 1.18 52/3cm 2480 2300 1420 1375 5700
3000 98.92 98.65 1.14 52/3cm 2570 2380 1450 1530 6330

 
   

An ISO 9002: 2000
Certified Company
     
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