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  An ISO 9001:2008 Unit
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Control Transformers

3 phase Control TransformerDuring the past 2 decades Mahendra Electrical Works has been engaged in the development of low reactance transformers for use with electro-magnetic control circuits. Given below are the salient features of our standard range of Single phase Industrial Control Transformers and general Purpose transformers.

Single Phase Control TransformerA Control Transformer is a transformer which supplies power to control and /or auxillary equipment not intended for direct connection to the main circuit. Control transformers are specifically used to provide control supply voltages for the control circuits of AC motor starters.
In addition Mahendra Electrical Works also manufactures a range of general power transformers. These can be of the single phase version or the 3 phase version with capacities from 1KVA to 50 KVA, system.

Charecteristics of Control Transformers:

Single Phase Control TransformerMahendra Electrical Works Industrial control Transformers are low reactance type, designed to ensure good regulation at short time loads. To ensure superior voltage regulation Mahendra Electrical Works Engineers devote appropriate attention to reducing the percentage reactance and resistance drops in the transformer design. Reduction of these values to a minimum greatly improves secondary voltage regulation.


Testing:
Mahendra Electrical Works transformers are tested in accordance with our own stringent quality control standards and a number of Electrical tests, including turns ratio, exciting current, core loss and applied potential tests are conducted to assure conformance to design specifications.

Information required with enquiry/order
  • Single Phase or 3 phase
  • Earthed or unearthed systems
  • Frequency
  • Dry Type or Oil immersed
  • Rated power in KVA and Rated short time Power in kva
  • Highest system voltage/Insulation level voltage
  • Type of Connection/Vector group
  • Class of Insulation
  • Service Condition


LT Single Phase, 50 Hz Air Cooled Control Transformer upto 3.5kVA

Rating in VA A(mm) B(mm) C(mm) D(mm) E(mm) Slot(lXb) Weight(Kgs)
10 & 15 76 80 100 64 45 8X5 1.150
20 & 30 76 100 100 64 60 8X5 1.700
50 & 60 96 110 110 80 62.5 10X6 2.5
75 & 100 115 120 135 95 70 12X6 3.8
150 & 175 115 130 135 95 82.5 12X6 4.5
200 & 250 126 135 160 108 90 16X8 6.0
300 & 350 155 140 165 128 72 16X8 7
400 155 145 165 128 88 16X8 8.5
500 155 155 165 128 100 16X8 10.5
630 155 160 170 128 112.5 16X8 12
750 185 155 250 160 102 16X8 14
1000 185 155 250 160 102 16X8 15
1500 240 175 270 195 107.5 16X8 21
2000 240 185 270 195 120 16X8 29
2500 240 205 270 195 145 16X8 37
3000 235 235 270 160 145 20X10 42
3500 235 235 270 200 145 20X10 45
Note:
a.) Preferred Rated Primary Voltage : 110V, 240V & 415V
b.) Preferred Rated secondary Voltage : 24V, 48V, 110V, 240V
Tolerance: +/- 3mm



LT Single Pahse, 50 Hz Air Cooled Control Transformer from 4 to 50kVA

Rating in kVA A(mm) B(mm) C(mm) D(mm) E(mm) Approx Weight(Kgs)
4 & 5 300 240 450 200 155 65
6 & 7.5 350 260 500 250 155 82
10 400 280 550 300 160 95
15 450 300 600 380 165 120
20 500 350 650 380 165 135
25 & 30 550 375 700 450 185 160
40 600 375 700 450 195 185
50 700 400 750 500 225 210

Note:
a.) Preferred Rated Primary Voltage : 110V, 240V & 415V
b.) Preferred Rated secondary Voltage : 24V, 48V, 110V, 240V
Tolerance: +/- 3mm

Custom Made Current Transformers Potential Transformers Other Products

Performance you can rely on, Quality you can depend on

Mahendra Electrical Works - An ISO 9001-2008 Unit
Plot No. A-433, Road No. 28 Wagle Industrial Estate, Thane - 400604, Maharashtra, India.
Tel : 91-22-2582 3743/2580 1110 Fax : 91-22-2582 2461  Email : support@mewindia.com

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