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EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
Specifications
Brand Name :
HTR
Place of Origin :
China
MOQ :
10pcs
Price :
negotiable
Payment Terms :
L/C,T/T,Western Union,Paypal
Supply Ability :
1,000 pcs/month
Delivery Time :
15-50 days, depends on QTY
Packaging Details :
Carton box, Wooden case, as per requires
Type :
Protected Type
Duty :
Continuous
Rated Voltage :
426V
Rated Current :
450A
Rated Speed :
366 r/min
Maximum Voltage :
1050V
Maximum Current :
630A
Maximum Speed :
2210 r/min
Excitation Method :
Series excitation
Insulation Class :
H
Ventilation Method :
Forced external ventilation
Cooling Air Volume :
65 m³/min
Description

The D29 traction motor features a compact structure and relatively light weight, making it suitable for narrow-gauge locomotives with limited space while still maintaining high traction performance. Its design is similar to that of the D31 motor, with some interchangeable components such as the armature, though differences exist in insulation, winding, and bearings. Renowned for its high reliability and maintainability, the D29 can be overhauled and extended in service life through processes such as rewinding the main field coils, replacing bearings, and renewing insulation materials. It was widely equipped on EMD export narrow-gauge locomotives such as the G18 and DDM45, becoming one of the classic models in international railway traction systems.


Product Performance

Reference Value

Type

Protected Type

Duty

Continuous

Rated Voltage

426 V

Rated Current

450 A

Rated Speed

366 r/min

Maximum Voltage

1050 V

Maximum Current

630 A

Maximum Speed

2210 r/min

Excitation Method

Series excitation

Insulation Class

H

Ventilation Method

Forced external ventilation

Cooling Air Volume

65 m³/min


Operating Conditions
The motor should operate normally under the following conditions:
a. Altitude not exceeding 1200 m;
b. Ambient air temperature not lower than -25 °C, and not higher than 55 °C (when above 40 °C, for every 4 °C increase, the rated current shall be reduced by 1%);
c. In the most humid month, the monthly average maximum relative humidity shall not exceed 90% (with the same month’s average minimum temperature not higher than 25 °C).

Temperature Rise Limits
When the motor is tested at a voltage of 426 V, a current of 478 A, and under full field excitation, starting from actual cold state for a one-hour temperature rise test, and also during long-duration temperature rise tests at rated voltage, rated current, and full field excitation, the temperature rise limits for each component are as follows.

Component

Insulation Class

Measurement Method

Temperature Rise Limit (K)

Armature Winding

H

Resistance Method

160

Main Field Winding

H

Resistance Method

180

Commutating Winding

H

Resistance Method

180

Commutator

H

Thermometer Method

120

When the cooling air temperature at the motor inlet is 40 °C or below, the temperature rise limit of the armature bearing is 95 °C.

EMD D29 DC Traction Motor 426V 450A for Locomotives


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EMD D29 DC Traction Motor 426V 450A for Locomotives

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Product Detail
Brand Name :
HTR
Place of Origin :
China
MOQ :
10pcs
Price :
negotiable
Payment Terms :
L/C,T/T,Western Union,Paypal
Supply Ability :
1,000 pcs/month
Contact Supplier
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives
EMD D29 DC Traction Motor 426V 450A for Locomotives

Chongqing Hengtairail Equipment Co.,Ltd.

Verified Supplier
4 Years
chongqing, chongqing
Since 1999
Business Type :
Distributor/Wholesaler, Exporter, Trading Company
Main Products :
Railway Casting Parts, Railway Forging Parts, Railway Suspension System
Total Annual :
$5million-$10million
Employee Number :
50~100
Certification Level :
Verified Supplier
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