dry type transformers - edpn · 2015. 1. 10. · edpn technologies pte ltd 51 bukit batok crescent...
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Dry Type Transformers
Standard and K--Factor(K13)
High Quality Transformers in Singapore "
EDPN Technologies, along with our associate, manufacture and sale of
transformers, mainly dry type, with a wide and diverse areas ranging from electronic manufacturing, data centers, marine, petrol chemical industries
and offshore applications.
Through the years of dedication to this highly specialized field, our
company had acquired knowledge and experiences in this field.
We work with a variety of clients including engineers, architects, facilities personnel, and end-users and the Industries we serve include financial, education, manufacturing,
utility, communications, broadcasting, government and even retail.
Our Quality We, along with our associate, adopt strict quality assurance and control
measures in our manufacturing process to ensure consistency and reliability in our products and services to meet the needs and
requirements of our customers. We had also been awarded the IS0900
1:2000 Certification in design, manufacture and repair of transformers. Certified by DNV(Det Norske Veritas) Cert no. 3202-2007-AQ-SIN-RVA
We had achieved approvals from recognized international bodies from
ABS(American Bureau of Shipping), LR(Lloyd's Registrar), DNV, BV(Bureau Veritas) , NKK(Nippon Kaji Kyokai), RINA, GL(German Lloyd), RMRS and PSB
With our complete setup and quality assurance, we are flexible and capable to meet your special
requirements.
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Why Choose EDPN transformers?
Our competitive advantage lies on
• Our vast experience in designing our transformer
• Employ various winding techiques to enhance reliability and improve heat dissipation
• Use of highest quality materials
• Full manufacturing facilites from core cutting, coil winding and vaccumm impregnantion
• Full quaility control in our transformer • Stringent testing procedure • Short leadtime
• ISO certified and manufactured in Singapore • After sales service
Manufacturing Facilities
Enclosure Manufacturing Termination Testing
Coil Winding Vacuum Impregnation Varnish Curing
Iron Core Stamping Core Stacking Core Insertion
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
High Grade Copper Windings
• Copper Strips with 200oC enameled coated from Invex,Italy. The copper conductors are fully sized, transposed and shaped to minimize Eddy current losses.
Insulation Materials
• Class H(NOMEX from Dupont) Insulation material is used between overlapping layers. • Axial channels are used between layers of primary and secondary winding to provide air gap for uniform
cooling. • High temperature tolerant fiberglass boards are used as bobbins to separate the core and windings. • Fully impregnated with class H varnish and oven dried.
Terminals • Tinned Copper Busbar (For 100KVA and above)
Protection Devices (Optional) • Thermal protection devices • Thermister (Normally Closed, activated at 160oC) • Digital Temperature Controller with 2 x Voltage Free contacts • Inrush Current Limiter (Available in Auto or Semi-Auto Type)
Testing Facilities
Temperature Controller,TR42
Our Materials
High Grade Iron Core
- High Grade, Cold rolled, Grain Oriented steel sheet with low specific losses, insulated on both sides by thin organic coating from Kawarin, Japan
10kVac Hi Potential Tester Milliohmeter Megger Induced Test Set(200Hz) Power Analyzer
Insulation Test at 1000Vdc and Hi-potential test at 3KV Induced AC Withstand Voltage Test Resistance Test Open circuit Test (No-load Test) Short circuit Test
Temperature Rise Test Noise Level Test
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Our Transformer Construction
Our Complete System
Inrush Current Limiter Temperature Controller,TR42S1
/Semi Auto or Auto Type) For 3phase Monitoring
For Extra Safe Turn on TR42C 1 /Remote Monitoring)
200% Neutral Conductor
Tinned Busbar
High Grade Iron Core
Earth Stud
Electro-Static Shielding/Optional)
Axial Channels for better Ventilation & Isolate pri & sec
Parallel use of Enameled Coated Copper Strip
Fully impregnated varnish and oven dried.
Internally Gapped per turn winding For better Ventilation and prevent internal short circuit
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Single Phase Isolated Transformers Electrical specifications Dimensions and Weights
Voltage Range Frequency
Insulation Class Standard Winding Material
Enclosure/ Colour
: < 500Vac : 50/60Hz : B or F : IEC 726 : Copper
: IP2 1 1 .5mm Galvanized Steel Plate/ Silver Grey 253
(1)Dimensions and weights indicated in the table above only apply to the transformers with electrical characteristics
shown in the previous table and subjected to minor
variation of ± 5%. (2) Please contact us if more detailed dimensions are required
(3) Dimensions are in mm
Transformer Size
Transformer Mounting
Casing Size
Casing Mounting
Weight(kg) Rate (VA)
Tx L D H A B Type L 1 L2 D H A B F Tx Tx +Case
6 A 70 36 55 62 0.2 12 A 77 40 62 67 0.4 24 A 93 55 76 82 0.8 36 A 93 66 76 82
0.9 50 A 106 66 85 93 1.0 1.8 60 A 106 71 85 93 1.2 2.0 80 A 112 71 97 107
A 105 146 105 105 131 64 5
2.4 3.2
100 B 96 89 107 80 70 2.6 3.6
150 B 96 100 107 80 80 3.2 4.2
200 B 105 105 112 88 86 4.2 5.2
250 B 114 100 116 96 76 4.7 5.7
300 B 114 110 116 96 86
A 130 176 145 142 163 79 5
5.4 6.4
350 B 133 99 135 11 2 80 6.3 7.5
400 B 133 104 135 11 2 85 6.9 8.0
450 B 133 104 135 112 85 7.3 8.4
500 B 133 117 135 11 2 95 8.0 9.1
600 B 133 128 135 112 104
A 178 222 155 169 207 106 5
9.1 10.1
700 B 152 116 152 129 94 9.5 12.2
800 B 152 131 152 129 108 11.8 14.5
1000 B 152 143 152 129 118 13.6 16.3
1200 B 171 148 171 143 113 15.1 17.8
1500 B 171 158 171 143 122
A 201 245 207 201 225 122 6
17.2 20.0
2000 B 181 168 171 152 134 20.7 24.2
2500 B 192 206 205 161 155 A 276 300 207 250 276 131 6
26.0 29.5
3000 B 192 215 205 161 161 A 323 350 208 300 323 133 6 31.5 35.0
Type L D H E A B F 3.5k B 228 195 225 191 148 B 346 275 342 50 200 245 6 32 39
4k B 228 195 225 191 148 B 346 275 342 50 200 245 6 36 43
4.5k B 228 210 225 191 160 B 346 275 342 50 200 245 6 40 47
5k B 228 210 225 191 160 B 346 275 342 50 200 245 6 43 50
6k B 228 240 225 191 200 B 346 275 342 50 200 245 6 52 59
7k B 228 240 225 191 200 B 346 275 342 50 200 245 6 60 79
7.5k B 240 250 330 200 140 B 350 350 455 75 200 300 11 64 71
8k B 240 250 330 200 150 B 350 350 455 75 200 300 11 68 75
10k B 250 250 350 200 160 B 350 350 455 75 200 300 11 80 100
15k C 250 280 400 200 190 B 350 350 530 75 200 300 11 120 160
20k C 320 250 480 200 185 B 450 400 650 100 200 350 11 180 200
25k C 320 300 500 200 195 B 450 400 650 100 200 350 11 200 230
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
3Phase Standard Isolation Transformers
electrical specifications dimensions and weights
Voltage Range
Frequency
Insulation Class Standard
Winding Material Connection
Enclosure/ Colour
:< 1 000Vac
:50/60Hz : F(Below 50KVA ); H(50KVA and Above) : EC 726 :Copper
: Delta-Star (Default)
: P2 1 1 .5mm Galvanized Steel Plate/Silver Grey 253
(1)Dimensions and weights indicated in the table above only
applytothetransformerswithelectricalcharacteristics shown in t hep r ev iou s t ab l eand sub jec t ed t om ino r
variation of ± 5%. (2) Please contact us if more detailed dimensions are required (3) Dimensions are in mm
Transformer Dimension Enclosure Dimension Capacity
KVA Weight
(Kg) L D H Terminal L D H C Case Type 5 70 330 220 300 Connector 450 350 450 75 A
10 110 360 230 350 Connector 450 350 510 75 A
15 150 400 250 400 Connector 510 350 510 75 A
20 180 450 280 420 Connector 560 360 580 100 A
30 220 480 280 450 Connector 610 420 660 100 A
40 250 480 300 480 Connector 610 420 660 100 A
50 280 550 350 530 Bolts 660 480 660 100 A
60 300 600 350 550 Bolts 660 480 660 100 A
75 360 650 350 600 Busbar 750 550 730 100 A
80 380 650 350 600 Busbar 750 550 730 100 A
100 480 680 400 650 Busbar 800 600 850 100 B
120 580 800 380 720 Busbar 950 600 950 100 B
150 700 800 420 750 Busbar 950 600 950 100 B
180 840 800 480 800 Busbar 1000 700 1000 100 B
200 890 800 500 800 Busbar 1050 800 1250 100 B
250 1100 850 500 850 Busbar 1100 800 1350 100 B
300 1300 900 550 850 Busbar 1200 800 1350 100 B
350 1450 950 500 900 Busbar 1200 850 1350 100 B
400 1650 980 500 950 Busbar 1280 850 1350 100 B
450 1800 980 550 950 Busbar 1280 850 1350 100 B
500 1950 1000 550 1000 Busbar 1400 900 1600 100 B
600 2100 1050 580 1000 Busbar 1400 900 1600 125 B
700 2300 1100 600 1100 Busbar 1500 900 1700 125 B
800 2700 1200 650 1300 Busbar 1500 900 1700 125 B
900 3100 1250 650 1400 Busbar 1600 950 1800 125 B
1000 3500 1350 700 1500 Busbar 1800 950 2000 125 B
Note 1: *Number of fans and lourves are added depending on the transformer capacity *Default Cable Entry: Bottom
Note 2: Additional Cost + Additional Feature such as MCCB, Indicating Light, Voltmeter, Ammeter, Temperature Controller, Thermistors etc
+ Zigzag connection, K Factor, Low inrush or special cabinet
+ Extra Tappings
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Why use K-Factor transformers?
Harmonics are generated by the use of computers, servers and non-linear devices. These harmonics will cause
excessive heating and degrade the insulation materials in the transformer which eventually lead to transformer failure.
Determine K-Factor
Defination/ From UL 1561)
A rating applied to a transformer indicating its suitability for the use of non sinsodial loads. In other words,
Where
Ih/PU) is the rms current/in per unit) at harmonic,h h is the harmonic order
Harmonics Effects on Transformer
The presence of harmonics will cause the increase in losses and heating. They will incease both the load
loss/impedance loss) and no-load loss/excitation).
a) Load Loss
Load Loss includes skin effect, inceased winding eddy current/PEC),I2R/PDC) and stray losses/PoSL)
From IEEE C57-110, total load loss consist mainly winding eddy current loss, and I2R loss. Stray losses can be
neglected in dry type transformer
b) No Load Loss
No load loss is increased due increasing of hysterisis loss . The presence of harmonics increase the flux density and
the rate of change of core magnetization which result in increased of hyterisis loss.
In Our Design
In order to reduce the effects of harmonics, our K-Type Transformers ,DTKFTM series are specially designed
For Load Loss
• Parallel individual insulated copper conductors are used to reduce skin effect and eddy current losses
• Larger conductors are used to reduce I2R losses
• Static Shield between the PRI & SEC winding to reduce electrostatic noise caused by the harmonics
• Well ventilated by using axial channels and internally gapped per turn winding
• 200% neutral conductor to handle zero sequence currents flow
For No Load Loss
• To reduce hysterisis loss, our transformer is deisgned at a lower flux density
and use of high grade iron core.
For Low Inrush Current
• Deisgned at a lower flux density and use of high grade iron core with hgh
core saturation point.
• Primary winding is wound externally to increase the primary impedance path
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Specifications - K 13
Rated Power (Kva) 40 60 70 80 100 120 180 200 250 300
Rated Primary Voltage 400Vac
Secondary Voltage (At No Load) 400Vac(230Vac-N) Neutral Conductor Size 200% bond to ground
Voltage Regulation < 2%
Input Voltage Tolerance +10% ie ( 0V to 440V)
Rated Current 58 87 101 115 144 173 260 289 360 433
Frequency 45-65Hz
Vector Group Dyn11(-30 deg Phase Shift) / Dzn0( Zero phase Shift)
Insulation Type H
Test Voltage 3kVac, 1 min
Enclosure Protection Degree IP21
Max Ambient Temperature(°c) 40
Max Allowable Temperature Rise(°c) 120
Approx Impedance Voltage (%) < 5
Standard in accordance IEC 60076-11 ; IEEE C57-110 ; UL1561
No-load Iron losses 250 350 400 450 600 750 900 1000 1100 1300 Approx
Losses (W)
°n-Load Copper losses 600 900 1100 1300 1500 1700 2800 3000 4500 5800
Specifications - K 13
Rated Power (Kva) 400 500 600 700 800 900 1000 1200 1500 2000
Rated Primary Voltage 400Vac
Secondary Voltage (At No Load) 400Vac(230Vac-N) Neutral Conductor Size 200% bond to ground
Voltage Regulation < 2%
Input Voltage Tolerance +10% ie ( 0V to 440V)
Rated Current 577 721 866 1010 1154 1300 1443 1732 2165 2886
Frequency 45-65Hz
Vector Group Dyn11(-30 deg Phase Shift) / Dzn0( Zero phase Shift)
Insulation Type H
Test Voltage 3kVac, 1 min
Enclosure Protection Degree IP21
Max Ambient Temperature(°c) 40
Max Allowable Temperature Rise(°c) 120
Approx Impedance Voltage (%) < 5
Standard in accordance IEC 60076-11 ; IEEE C57-110 ; UL1561
No-load Iron losses 1300 1500 1700 1850 1950 2050 2200 2500 3000 5000 Approx
Losses (W)
°n-Load Copper losses 5700 6800 7500 8500 11000 15000 18000 22000 28000 35000
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EDPN Technologies Pte Ltd
51 Bukit Batok Crescent #05-15 Unity Cent Singapore 658077
Tel: +65 67636511 Fax: +65 67646511 Web: www.edpn.biz
Dimensions and weights
Enclosure Dimension Capacity KVA
Weight (Kg)
Fans Terminal Type W 1 W2 W3 D H 1 H2
40 300 No connector 300 400 650 500 100 650
60 400 No Connector 350 450 700 550 100 750
70 480 No Connector 400 500 750 550 100 750
80 550 No Bolts 560 660 900 600 100 900
100 600 No Bolts 560 660 950 600 100 950
120 700 2x 4" Busbar 560 660 950 600 100 950
160 800 2x 6" Busbar 600 700 1050 700 100 1150
180 950 2x 6" Busbar 600 700 1050 800 100 1250
200 1150 2x 6" Busbar 600 700 1100 800 100 1350
250 1400 3 x 6" Busbar 700 800 1250 850 100 1350
300 1600 3 x 6" Busbar 750 850 1300 900 100 1350
400 1800 4x 6" Busbar 850 950 1400 900 100 1500
500 2000 4x 6" Busbar 850 950 1400 900 100 1500
600 2400 4x 6" Busbar 900 1000 1600 1000 100 1600
700 2800 6x 6" Busbar 1000 1100 1700 1150 100 1600
800 3000 6x 6" Busbar 1000 1100 1800 1200 100 1600
900 3500 4 x10" Busbar 1000 1100 1800 1200 100 1700
1000 4000 6 x10" Busbar 1000 1100 2000 1300 100 1800
1200 4800 8 x10" Busbar 1000 1100 2000 1300 100 1900
1500 5400 8 x10" Busbar 1050 1150 2000 1400 100 2000
2000 5800 8 x 10" Busbar 1050 1150 2200 1500 100 2100
Winding Schematic
PRIMARY PRIMARY
1U 1V 1W 1U 1V 1W
SECONDARY SECONDARY
Vector Group : Dyn1 1 Vector Group : D~n)
2U 2V 2W 2N(200%) E 2U 2V 2W 2N(200%)