Page 26 - Electro-Wind Brochure 2024

Case Studies
Part A – Specification Data
Input volts (on-load) 11000V 3ph (3 wire) @ 86A
Output volts A (on-load) 2 x 500V 3ph (3 wire) @ 941A
Ingress Protection BS EN60529 IP00
Frequency – Hz. 50 / 60 Hz
Type Dry
Vector Group Dd0yn11
Screen between HV/LV windings Yes
Ambient Temperature Degrees C 30°c
Impedance Voltage (%) 7%
Primary Tapings ± 2.5 & 5%
Duty Cycle Continuous
Commulating Impedance (%) 7.3% (balanced to 10% between windings)
Total loss @ nominal voltage/ freq. TBA
Dielectric Class 28 kV
Insulation Class (Temp. rise) H
Winding Conductor Material TBA
Item Data Option A
Part B – Fittings
Quantity 1
Rating 1630 kVA
Enclosed (Medium grey) IP22
Height (mm) Approx. H 2000
Length (mm) Approx. L 2000
Depth (mm) Approx. W 3000
Weight (kg) Approx. 5000
Connection Bushings / Cu bus bar flags.
Protection Not requested
Notes For use with regenerative 12 pulse thyristor drive to start and run a DC motor
Not oversized for input harmonics or any other factor not shown on the quote
Standard BSEN 60076
Part A – Specification Data
volts (on-load) 520VDC
Input 1150A DC (from 6 pulse)
Output 2300A DC (12 pulse)
Ingress Protection BS EN60529 IP00
Frequency – Hz. 300 Hz
Type An (dry)
Phases 6 / 12
Ambient Temperature Degrees C 30°c (peaks of 40°c)
Winding voltage at 300Hz 588V Pk to Pk Trapezodial Wave
Maximum DC imbalance current 230A DC
Tapings (MV) None Requested
Duty Cycle Continuous
Noise Emission dB(A) (Lpa) N/A
Dielectric Class 3kV
BIL/Separate Source Withstand N/A
Insulation Class (Temp. rise) H
Winding Conductor Material TBA
Item Data Option A
Part B – Fittings
Quantity 1
Inductance (L) 2.0 mH maintained for 10% of ADC
Rating 2300ADC
Enclosed (Medium grey) Open
Height (mm) Approx. A 700
Length (mm) Approx. B 600
Depth (mm) Approx. C 500
Weight (kg) Approx. 350
Connection Copper busbar flags (to be confirmed)
Protection Not requested
Overload Not oversized as values NOT advised
Standard BS 60076
At Electro-Wind, we pride ourselves on exceeding Customer expectations, delivering on time and within budget.
Page 26
Aircraft Research Association Ltd. 12 pulse Hexaphase transformer & IBR Upgrade to drive system on Transonic Wind Tunnel.