BE1 Numerical Protection Systems

NEW! BE1-11f	NEW! BE1-11i	NEW! BE1-11g	BE1-GPS100
BE1-IPS100	BE1-1051	BE1-951	BE1-851
BE1-851E	BE1-700C	BE1-700V	BE1-CDS240
BE1-CDS220			next

BE1 Numerical Protection Systems are available in rack mount or retrofit friendly packages for any application. Their BESTlogic programmable logic provides the user with flexibility, while common protocols aid integration. Click here to see communications capabilities for the entire line.

BE1-851E
Enhanced Overcurrent Protection System

Product Bulletin	Instruction Manual	Protocol Manuals	Product Software	Application Guides	Guideform Specifications
Bulletin UHW (includes stylechart)	BE1-851E Manual	DNP3 Manual	BESTCOMS	Generator Protection
		Modbus Manual	BESTWAVEPlus	Transformer Protection
			BESTprint
Click here for Application Notes and Technical Papers and other Resources

The BE1-851E enhanced multifunction, numeric relay based on the design of the BE1-851 that provides three phase and ground or three phase, ground, and negative sequence overcurrent protection with four shot recloser, breaker failure, breaker monitoring, control, and metering functions in an integrated system.



	Available in fully drawout half rack case










Device Functions

Standard features include:

Includes seven additonal control outputs.
Allows the user to select the optimal response characteristic separately for phase and ground elements.
BESTlogic provides the user with complete flexibility in configuring a protection and control system. User programmable variable and switch names make these relays completely self documenting.
Available in a fully drawout case configuration.
BESTCOMS GUI software available to aid in setup.

Application Notes and Technical Papers and other Resources

Application Notes
- Application Note PC-COM01 - Basic instructions for setting up HyperTerminal and Terminal
- Application Note PC-51Q01 - Consideration on applying negative sequence overcurrent elements
- Application Note PC_RTF Compare - Instructions for an easy way to quickly and accurately compare two numeric relay settings files using BESTCOMS and Microsoft® Word.
- Application Note PC-ArcFlash - Arc Flash Hazard Mitigation Through Relaying

Technical Papers
- Load Shedding for Utility and Industrial Power System Reliability
- Reliability Considerations of Multifunction Protection
- Protective Relaying When Distributed Generation is Added to Your Circuit
- Intertie Requirements for DGs Connected to Radial Distribution Feeders
- Breaker Monitoring with Numerical Relay
- Commissioning Numerical Relays

Other Resources
- BE1-851 DNP Certification Report
- BNS Time Current Characteristic Spreadsheet
- Electric Calculations Spreadsheet

BE1 Numerical Protection Systems

BE1-851E Enhanced Overcurrent Protection System

Application Notes and Technical Papers and other Resources

BE1-851E
Enhanced Overcurrent Protection System