SE-601 DC GROUND-FAULT PROTECTION WITH ASYMMETRICAL SE-GRM Technical Note

PublishTime：2021-12-27

●The SE-601 DC Ground-Fault Monitor is used with an SE-GRM Ground-Reference Module to detect ground faults on an ungrounded dc system. Two identical resistors in a standard SE-GRM equally divide the bus voltage (e.g. ±62.5 V on a 125-V system) and limit ground-fault current to 25 mA. A ground reference is created by connecting the S terminal to an SE-601. The SE-601 trip level is selectable from 1 to 20 mA. For details on SE-601 operation, see the product manual and Technical Information 10.7.
●An asymmetrical ground reference can assist in troubleshooting, as both the polarity and magnitude of the bus voltage are different. For example, a 75:25 ratio results in +94 V and -31 V to ground on a 125-V system.
●An SE-601 and SE-GRM can be used in an asymmetrical-ground-reference application. An SE-GRM125 contains two 5-kΩ resistors. To create a 75:25 ratio, install a 10-kΩ 5-Watt resistor in series with the SE-GRM125.

Brand of Product：	Littelfuse
Part#：	SE-601 More Part#
Product Category：	DC Ground-Fault Monitor More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	110818
Version Number：	Rev: 110818
Data Encoding：	TN-GF08
Data Size：	244 KB

Data section preview(2pages)

- The full preview is over,the data is 2 pages -

Download

+1 Like
Add to Favorites

Recommend

Technical Resources

More>

All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.

Integrated Circuits