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7RW8020-5EB90- 1DE/BB Voltage & Frequency Protection Siemens

7RW8020-5EB90- 1DE/BB Voltage & Frequency Protection Siemens

Update Terakhir 13 / 12 / 2019
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Detail 7RW8020-5EB90- 1DE/BB Voltage & Frequency Protection Siemens

Protection functions Under-/ overvoltage protection ( 27/ 59) Displacement voltage ( 64/ 59N) Under-/ overfrequency protection ( 81U/ O) Load restoration Overexcitation protection ( 24) Jump of voltage vector Phase-sequence monitoring ( 47) Synch-check ( 25) Rate-of-frequency change ( 81R) Rate-of-voltage change Lockout ( 86) Control functions/ programmable logic Commands for the control of CB, disconnect switches ( isolators/ isolating switches) Control through keyboard, binary inputs, DIGSI 4 or SCADA system User-defined PLC logic with CFC ( e.g. interlocking) Monitoring functions Operational measured values V, f Minimum and maximum values Trip circuit supervision ( 74TC) Fuse failure monitor 8 oscillographic fault records Communication interfaces System/ service interface – IEC 61850 – IEC 60870-5-103 – PROFIBUS-DP – DNP 3.0 – MODBUS RTU Ethernet interface for DIGSI 4 USB front interface for DIGSI 4 Hardware 3 voltage transformers 3/ 7 binary inputs ( thresholds configurable using software) 5/ 8 binary outputs ( 2 changeover / Form C contacts) 1 live-status contact Pluggable terminals