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   Home   Dynamic Brake Resistors Radial Type Dynamic Brake Hatch System

 

Radial Grid Dynamic Brake Assembly

Dynamic Brake Hatch Assembly

Force Cooled Roof Mounted DBR Assembly With Short Hood

Forced Cooled Roof Mounted DBR (Electric Locomotive)

Vertical Type DBR

Natural Cooled Roof Mounted DBR

Resistor Harmonic Filter

Resistor Over Voltage Protector (MUB)

Pre-Charge Resistor

Inverter Protection Resistor (IPR)

Crowbar Resistor

Oil Cooled Resistor

Radial Grid Dynamic Brake Assembly ( 6 Axle Radial Grid Assembly DR129903001 )

 

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:

Non-Fan Tap Radial Grid Resistors

Fan-Tap Radial Grid Resistors

D.C Series Blower Motor

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.

 

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

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

   

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

 
 

Copyright @ Daulat Ram