Radial Grid Dynamic Brake Assembly ( 6 Axle Radial Grid Assembly DR129903001 ) |
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The Radial Dynamic Braking Resistors complete
with Blower Motor set are required to control the
speed of the train on a continuous down gradient
as well as on level section.
These 6 or 4 Grid Resistors depending upon the
requirement those are forced cooled by a D.C.
Blower motor mounted below the radial grid
assembly, such that the fresh air is flown through
the element assembly.
Elements of this assembly: |
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Non-Fan Tap Radial Grid Resistors |
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Fan-Tap Radial Grid Resistors |
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D.C Series Blower Motor
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Blower Fan |
Forced cool convection method is used for cooling
of resistor grid by a D.C Series blower motor.
Aluminum Alloy die cast axial flow fan is used
for cooling of resistor grid driven by D.C Series
blower motor.
There are various designs of 4 and 6 grid
arrangements, these are designed as per the
power requirements.
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Technical Details |
Altitude |
0-1500 Mtrs |
Maximum Grid Current |
upto 900 Amps |
Load Voltage |
Maximum 2700 V.D.C. across Resistance |
Ambient Temperature |
0-55o C |
Total Heat Dissipation |
1.7 MW |
Max. Grid Power of each
resistor |
367.5 kW |
DC Motor power output
rating |
100 HP |
Fan & Motor Supply |
450 V |
Fan & Motor Speed |
2000 RPM |
Motor Current |
195 Amps |
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| Description |
Ref Part No. |
DR Part No. |
Resistor Grids 60
NMT |
2810477
40010559
40038122
40038462 |
DR129903003 |
Resistor Grids 60
MT |
2810473
40010560
40038123
40038463 |
DR129903004 |
Resistor Grid 90
NMT 3600kW |
40072441
40170134 |
DR129922003 |
Resistor Grid 90
MT 3600kW |
40072440
40170024 |
DR129922004 |
Resistor Grid 90
NMT |
RA-0500-
0021 |
DR129911003 |
Resistor Grid 90
MT |
RA-0500-
0022 |
DR129911004 |
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| Description |
EMD** &
Other Ref.
Part No. |
DR Part No. |
Complete DB
Hatch Module |
2810060 |
DR129920001 |
Complete DB
Hatch Module |
2811630 |
DR129921001 |
Complete DB
Hatch Module |
2810470 |
DR129903001 |
Complete DB
Hatch Module |
40170105 |
DR129922001 |
Dynamic Brake
Grid Fan |
2808505
40067679 |
DR120003002 |
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