Protection set

Main features

• 4 measuring inputs (Un=100V) or 3 measuring inputs ((Un=400V)
• different types and versions depending on configuration
• measurment of analog input values
• real time clock
• event recorder with capacity up to 500 records
• last disturbance parameters recorder
• samples or magnitudes of disturbance and logic states recorder
• Tripped currents counter
• Two binary inputs for cooperation with external protection purposes, possibility to be used as blocking inputs
• Trip impulse
• alphanumeric LCD display (2×16) and six buttons enabling operation of the relay
• visual indication (by LED diodes) of pick-ups and trips, exceeding of counters or proper operation of relay
• 7 programmable relay outputs (S1-S7)
• RS-485 port for communication with PC computer or supervision and control system (MODBUS-RTU protocol)
• self-test system of proper operation of relay control
• enclosure construction enables three types of mounting: 35 mm rail, surface mount or flush mount

The energizing values are input voltages: UL1, UL2, UL3 and U0 if Un=100V or UL1, UL2, UL3 if Un=100V. On the basis of measured voltages other energizing values are calculated: positive-sequence voltage U1, negative-sequence voltage U2, derivative of voltage, rate of change of voltage, integral of voltage. Exceeding of any set threshold value causes the reaction of the relay according to the configuration. Communication interface provides measured and calculated electrical values, binary inputs and outputs states and saved records. The manufacturer provides PC software allowing to set the relay, confirm signals, graphical display of measured values and browse records.

TECHNICAL DATA