GE - General Electric Dry Type Transformers Midtapped Catalog Page
Dry Type Transformers
Midtapped
Three-Phase TP-1
Product Description
GE Type QL midtapped transformer enables the user to transform
three-phase power from 480 Volts primary to 240 Volts secondary and have 120 Volt, reduced capacity tap (RCT) single-phase
capability as well. This is because a single-phase midtap is
brought out of one coil of the unit’s three-phase secondary winding. These transformers are UL listed, File E-79145.
Application
The Type QL midtapped design can be used wherever there is 480
Volt, three-phase supply available and the load is primarily 240
Volt three-phase with a nominal amount of 120 Volt, single-phase
power required. Normally, in this instance, a small single-phase
as well as a three-phase transformer would be required to
provide the necessary transformation.
Caution: When utilizing the 120 Volt midtap for single-phase
applications, the single-phase load should not exceed 5 percent
of the three-phase kVA rating. The three-phase kVA load must be
reduced by the same percentage as that added by the singlephase load. Additional loading beyond 5 percent may cause the
transformer to overheat and fail. If the single-phase load is in
excess of 5 percent , it is recommended that a separate singlephase unit be used to handle the load.
Section 10
Type QL Mi dt ap pe d Transformer
Aluminum
150°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 240 XV371 9T83B3841
480 240/120 30 (+2,-4 2.5%) 334 XV372 9T83B3842
480 240/120 45 (+2,-4 2.5%) 415 XV373 9T83B3843
480 240/120 75 (+2,-4 2.5%) 620 XV374 9T83B3844
480 240/120 112.5 (+2,-4 2.5%) 765 XV375 9T83B3845
480 240/120 150 (+2,-4 2.5%) 1070 XV376 9T83B3846
480 240/120 225 (+2,-4 2.5%) 1590 XV377 9T83B3847
480 240/120 300 (+2,-4 2.5%) 1820 YF378 9T83B3848
480 240/120 500 (+2,-2 2.5%) 3400 YF379 9T83B3849
115°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 240 XV371 9T83B3841G15
480 240/120 30 (+2,-4 2.5%) 334 XV372 9T83B3842G15
480 240/120 45 (+2,-4 2.5%) 415 XV373 9T83B3843G15
480 240/120 75 (+2,-4 2.5%) 620 XV374 9T83B3844G15
480 240/120 112.5 (+2,-4 2.5%) 1070 XV376 9T83B3845G15
480 240/120 150 (+2,-4 2.5%) 1590 XV377 9T83B3846G15
480 240/120 225 (+2,-4 2.5%) 1820 YF378 9T83B3847G15
80°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 334 XV372 9T83B3841G80
480 240/120 30 (+2,-4 2.5%) 415 XV373 9T83B3842G80
480 240/120 45 (+2,-4 2.5%) 620 XV374 9T83B3843G80
480 240/120 75 (+2,-4 2.5%) 765 XV375 9T83B3844G80
480 240/120 112.5 (+2,-4 2.5%) 1070 XV376 9T83B3845G80
480 240/120 150 (+2,-4 2.5%) 1590 XV377 9T83B3846G80
480 240/120 225 (+2,-4 2.5%) 1820 YF378 9T83B3847G80
10-38
BuyLog™Catalog
Rev. 11/13
Data subject to change
without notice
Dry Type Transformers
Section 10
Midtapped
Copper
Three-Phase TP-1
150°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 250 XV371 9T83C9841
480 240/120 30 (+2,-4 2.5%) 377 XV372 9T83C9842
480 240/120 45 (+2,-4 2.5%) 490 XV373 9T83C9843
480 240/120 75 (+2,-4 2.5%) 710 XV374 9T83C9844
480 240/120 112.5 (+2,-4 2.5%) 949 XV375 9T83C9845
480 240/120 150 (+2,-4 2.5%) 1190 XV376 9T83C9846
480 240/120 225 (+2,-4 2.5%) 1710 XV377 9T83C9847
480 240/120 300 (+2,-4 2.5%) 3150 YF378 9T83C9848
480 240/120 500 (+2,-2 2.5%) 4050 YF379 9T83C9849
115°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 250 XV371 9T83C9841G15
480 240/120 30 (+2,-4 2.5%) 377 XV372 9T83C9842G15
480 240/120 45 (+2,-4 2.5%) 490 XV373 9T83C9843G15
480 240/120 75 (+2,-4 2.5%) 710 XV374 9T83C9844G15
480 240/120 112.5 (+2,-4 2.5%) 949 XV375 9T83C9845G15
480 240/120 150 (+2,-4 2.5%) 1710 XV377 9T83C9846G15
480 240/120 225 (+2,-4 2.5%) 3150 YF378 9T83C9847G15
80°C Rise 60Hz
Input Output Net
Voltage Voltage kVA Taps Weight (Lbs.) Frame Size Product Number
480 240/120 15 (+2,-4 2.5%) 377 XV372 9T83C9841G80
480 240/120 30 (+2,-4 2.5%) 490 XV373 9T83C9842G80
480 240/120 45 (+2,-4 2.5%) 710 XV374 9T83C9843G80
480 240/120 75 (+2,-4 2.5%) 949 XV375 9T83C9844G80
480 240/120 112.5 (+2,-4 2.5%) 1190 XV376 9T83C9845G80
480 240/120 150 (+2,-4 2.5%) 1710 XV377 9T83C9846G80
480 240/120 225 (+2,-4 2.5%) 3150 YF378 9T83C9847G80
Rev. 11/13
Data subject to change
without notice
BuyLog™Catalog
10-39
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