CAMdKem*• #GMrM (Ctwi • Scum Aves • Market Footprints A otfee Bases SHANGHAI SHR AUTOMATION CO.,LTD No.3399, Huaning Road.Minhang Dist.,Shanghai,China Telephone: 021-61610977 Fax: 021-61610500 Website: en.sieyuan.com No.3399, Huaning Road.Minhang Dist.,Shanghai,China Telephone: 021-61

BRIEF DESCRIPTION IES-311 is a microprocessor-based protection, control and monitoring device designed for various primary equipments (such as overhead line, underground cable and aulixiary transformer etc.) on solidly grounded, Peterson coil grounded, low impedance grounded and ungrounded system. With flexible and powerful configuration tool, IES-311 offers future-oriented system solutions with high investment security and low operating costs. The device is freely programmable. Functional logic diagrams can be developed with the use of graphical programming tool which also supports the configuration...

II FUNCTIONS II DIMENSION ► Protection functions • Phase Overcurrent Protection(50/51P) • Directional and non-directional overcurrent protection(67P) • Earth Fault Overcurrent Protection(50/51G) • Sensitive Earth Fault Protection (50/51SEF) • Phase Overvoltage Protection (59P) • Breaker Failure Protection (50BF) • Restricted Earth Fault Protection(64REF) • Current Unbalance Protection (60/50) • Voltage Unbalance Protection (60/59) ►Control Functions • Switchgear control • Double point status synthesis • Remote/Local control mode switch • Interlocking logic for control • Direct control • Closing...

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