Application Note

VISHAY MILWAUKEE
www.vishay.com
Resistive Products
Application Note
Grid Resistors: Load Steps and Resolution
By Daniel Featherstone
STANDARD BANKS
GRE1 and GRE2 Series grid resistor banks are designed to include 10 % load step resolution. Each GRE1 terminal tap is
constructed using a standard NEMA 2 hole pattern and each GRE2 terminal tap is constructed using a ½ inch hole. The
customer can manually contact terminal R1 in combination with any other terminal, R2 to R11, to achieve the power and
resistance required for load testing.
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Fig. 1 - GRE1 Series Grid Resistor Terminal Tap
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Fig. 2 - GRE2 Series Grid Resistor Terminal Tap
Revision: 08-Jul-15
Document Number: 21045
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
APPLICATION NOTE
R1
Application Note
www.vishay.com
Vishay Milwaukee
Grid Resistors: Load Steps and Resolution
CUSTOM BANKS
Custom-designed load banks can be designed with customer-specific load step resolution. As shown below, combinations of
wirewound and grid resistors can be used to achieve specific resolutions.
Load Steps Using Wirewound Resistors
GRE1 datasheet
www.vishay.com/doc?31833
GRE2 Application Form
www.vishay.com/doc?31875
Load Bank Application Form
www.vishay.com/doc?49893
Document Number: 21045
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
APPLICATION NOTE
Revision: 08-Jul-15
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