SIEMENS SIPROTEC 4 SIPROTEC 7VE6 MULTIFUNCTION PARALLELING DEVICE

The 7VE61 parallelingdevice is a 1-channel unit (paralleling function + synchro-check) for use withsmall to medium-size generators and power systems. It is more reliable than1-channel paralleling devices. It can also be used for synchro-check, withparallel operation of three synchronization points.For larger generators andpower systems withhigh reliability requirements, the 2-channel 7VE63 isrecommended. Two independent methods decide on the connection conditions. Theunit also has the full control functions of the SIPROTEC 4 family.Voltage andfrequency functions including voltage vector jump (??) are optionally availablefor protection or network decoupling applications.The integrated programmablelogic functions (continuous function chart CFC) offer the user a highflexibility so that adjustments can easily be made to the varying requirementson the basis of special system conditions.The flexible communication interfacesare open to modern communication architectures with control systems.

BASIC FUNCTIONS1.    High reliability with atwo-out-of-two design (1 channels in 7VE61 and 2 channels in 7VE63)2.    Paralleling of asynchronousvoltage sources3.    Balancing commands forvoltage and speed (frequency)4.    Paralleling of synchronousvoltage sources5.    Synchro-check function formanual synchronization6.    

ADDITIONAL FUNCTIONS                                       1.    Consideration oftransformer vector group and tap changer2.    Synchronization record(instantaneous or r.m.s. record)3.    Commissioning support(CB-time measurement, test synchronization)4.    Browser operation5.    Full control functionalityof SIPROTEC 46.    Analog outputs ofoperational measured values7.    

PROTECTION FUNCTIONS (OPTION)8.    Undervoltage protection(27)9.    Overvoltage protection (59)10. Frequency protection (81)11. Rate-of-frequency-changeprotection (81R)12. 

MONITORING FUNCTIONS1.    Self-supervision ofparalleling function2.    Operational measured values3.    8 oscillographic faultrecord

COMMUNICATION INTERFACES1.    System interface IEC 60870-5-103 IEC 61850 protocol PROFIBUS-DP MODBUS RTU and DNP 3.02.    Service interface for DIGSI4 (modem)3.    Front interface for DIGSI 44.    Time synchronization viaIRIG B/DCF77