Multifunction Protection Relay Block 7UM621

Type : 7UM621

Features and technical specifications:

1. Analog inputs
2. CT inputs : 8 No’s
3. VT inputs : 4 No
4. Binary input’s : 7/15 NO
5. Output relays : 12/20 NO                                                                                                                                                                                                                                                                                                                                           The following functions are available
   1. stator ground-fault protection
   2.  sensitive ground fault protection
   3. stator overload protection
   4.  over current-time protection
   5. undervoltage and overvoltage protection
   6.  under frequency and over frequency protection
   7. negative-sequence protection
   8. breaker failure protection                                                                                                                                                                                                                                                                                                                            This Motor Protection relay block is easily insert in your schematic diagram and connect as you like way.                                                                                                                                                                                           The SIPROTEC 4 7UM62 protection relays can do more than just protect. They also offer numerous additional functions. Be it ground faults, short-circuits, overloads, over voltage, over frequency or under frequency asynchronous conditions, protection relays assure continued operation of power stations. The SIPROTEC 4 7UM62 protection relay is a compact unit which has been specially developed and designed for the protection of small, medium-sized and large generators. They integrate all the necessary protection functions and are particularly suited for the protection :                                                                     – Hydro and pumped-storage generators
      – Co-generation stations
      – Private power stations using regenerative energy sources such as wind or biogases
      – Diesel generator stations
      – Gas-turbine power stations
      – Industrial power stations
      – Conventional steam power stations                                                                                                                   The integrated programmable logic functions (continuous function chart CFC) offer the user high flexibility so that adjustments can easily be made to the varying power station requirements on the basis of special system conditions. The flexible communication interfaces are open for modern communication architectures with the control system.