Specifications

13
BE1-59N Ground Fault Overvoltage
Relay
(Request bulletin UBG)
Application
Provides sensitive ground fault protection for
ungrounded or high resistance grounded systems,
including stator ground fault protection.
Features
• Overvoltage element tuned to reject harmonics
• Pickup down to 0.1 volts
• Withstands full rated voltage continuously
• Third harmonic undervoltage element for 100%
stator protection
• Instantaneous, definite, or inverse time characteristics
• Four sensitivity ranges for under and overvoltage
BE1-59NC Capacitor Neutral
Overvoltage Relay
(Request bulletin UHF)
Application
Provides alarming for minor capacitor bank
imbalance and tripping before the imbalance
threatens cascading capacitor failures.
Features
• Helps avoid cascading capacitor failures
• Sensing circuit rejects harmonics and noise to achieve
higher sensitivity to 50/60 Hz neutral voltage
• Includes an early warning alarm output on minor
unbalances such as a blown fuse
• Can be set to trip when voltage across any capacitor
exceeds 110% of nominal
BE1-60 Voltage Balance Relay
(Request bulletin UBS)
Application
Detects voltage imbalances on relay and control
circuits.
Features
• Wide range adjustment (5% to 50%)
• Six input sensing types to match various system
configurations
• Maximum trip time of 100 milliseconds
BE1-67 Phase Directional Time Overcur-
rent Relay
(Request bulletin UDQ)
Application
Microprocessor based phase directional time
overcurrent relay used to protect circuits where
power can flow in either direction.
Features:
• Single- or three-phase configurations
• Sensitive down to one volt on polarizing input
• Twelve field selectable time-current curves
• Quadrature (90 degree) voltage polarization
• Directional or non-directional instantaneous elements
• Limited region provides additional security
BE1-67N Ground Directional Overcur-
rent Relay
(Request bulletin UDR)
Application
Microprocessor directional overcurrent relay senses
direction and magnitude of ground faults.
Features
• Twelve field selectable time-current curves
• Directional and non-directional instantaneous elements
• Directional element polarized by zero sequence
current, zero sequence voltage, or phasor sum of zero
sequence quantities