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3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer
Detail Information
Place of Origin:
CHINA
Certification:
CE,ISO
Model:
SG-111KVA
Input Voltage:
472VAC
Output Voltage:
6530VAC
Phase:
3
Frequency:
60Hz
Temperature Rise:
125℃
Insulation Class:
H
UL Certification:
10%
Delivery Time:
30days
Supply Ability:
500set/month
Highlight:

3000A three phase dry type transformer

,

400V to 14V low voltage transformer

,

dry type rectifier transformer with warranty

Product Description

3000A Three Phase Dry Type Rectifier ​​Transformer 400V To 14v With UL Certification

 

 

Summarization

 

The 3000A Three-Phase Dry-Type Rectifier Transformer is engineered for high-current industrial rectification applications. With a 400V primary and 14V secondary at 60Hz, this transformer delivers stable DC output via rectifier systems while meeting strict reliability and safety requirements for heavy-duty power conversion.

 

3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 0

 

3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 1   3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 2

 

Key Features

 

  • Rated current: 3000 A — supports large-scale rectifier loads.
  • Input voltage: 400 V (three-phase) — compatible with common distribution systems.
  • Output voltage: 14 V — optimized for rectifier and DC supply applications.
  • Frequency: 60 Hz — suitable for regions and equipment using 60 Hz power.
  • Dry-type construction — reduced fire risk, no oil required, low maintenance.
  • High short-circuit withstand: short-circuit voltage 22.532 V, short-circuit current 36.338 A.
  • Low impedance voltage: 6.4184% — maintains voltage stability under load.
  • Efficient performance: load loss 1195.5 W and no-load loss 213.2 W.

 

Electrical Performance

 

  • DC resistance: 81.97 mΩ — designed for efficient current flow and minimal resistive heating.
  • Impedance and short-circuit characteristics: impedance voltage 6.4184% with measured short-circuit voltage 22.532 V and short-circuit current 36.338 A, ensuring predictable performance during fault conditions.
  • Losses: no-load loss 213.2 W and load loss 1195.5 W — demonstrates competitive efficiency for heavy-current rectifier transformers.

 

Product features

 

  • High efficiency: Provides a rated current of up to 3000A to ensure stable operation under high load.
  • Low loss design: The load loss is only 1195.5W, and the no-load loss is 213.2W, which is an economical choice and reduces energy consumption.
  • Strong short-circuit capability: the short-circuit voltage is 22.532V, and the short-circuit current can reach 36.338A, ensuring reliability and safety in abnormal situations.
  • Excellent impedance characteristics: the impedance voltage is 6.4184%, which can maintain voltage stability when the load changes, improving the overall reliability of the system.
  • Wide application areas: suitable for a variety of industrial applications, especially in occasions requiring high-power DC power supply, such as welding, electroplating, etc.

 

Specification

 

Model
(kva)		 Primary Voltage Secondary Voltage Coupling group tab Shape dimension Mounting dimension   K*J The box dimension
Bmax Dmax±5 Emax A C±5 Bmax Dmax±5 Emax
SG-10KVA 660
400
380
200		 380
220
110
36		 Yyn0
Y/d
D/y
D/d		 360 180 305 215 140 10*20 450 360 480
SG-15KVA 360 200 335 215 155 10*20 450 360 480
SG-20KVA 420 210 350 250 170 10*20 490 400 540
SG-30KVA 420 230 380 250 190 10*20 490 400 540
SG-50KVA 680 350 550 420 220 10*20 800 510 840
SG-80KVA 750 400 620 480 250 10*20 850 510 840
SG-100KVA 780 420 650 500 250 10*20 900 550 890
SG-300KVA 180 95 185 100 75 6*14      
SG-500KVA 180 95 185 100 75 6*14      
SG-1000KVA 180 110 185 100 90 6*14      
SG-2000KVA 230 125 205 130 100 9*16      
SG-3000KVA 240 145 215 130 120 9*16      
SG-4000KVA 240 155 235 130 130 9*16      
SG-5000KVA 320 160 255 180 115 10*20 400 330 480
SG-6000KVA 300 165 280 180 140 10*20 400 330 480

 

Applications

 

  • Industrial rectifier plants (electroplating, electrolysis, and smelting)
  • DC power supplies for large motors and drives
  • Traction, welding, and metallurgical processes
  • Backup and standby DC systems in manufacturing and utilities

 

Production process

 

3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 3

3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 43000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 5

 

 

FAQ

 

3000a Three Phase Dry Type Rectifier ​​Transformer 400v To 14v Low Voltage Dry Type Transformer 6