Feeder Protection and Control Relay Block REJ601

Type : 7SG11 Rho3

Features and technical specifications:

1. Compact size and ease of use
2. Standard 1A and 5A CT input for phase and earth current measurement
3. Earth current measurement internally or externally through CBCT
4. Local and remote control of circuit breaker
5. Trip Circuit Supervision and relay internal supervision
6. Lockout function
7. Configurable logic gates and timer
8. Faulty phase identification
9. 100 event logs with date and time stamping
10. Five analogue fault records
11. Non-resettable trip counter
12. On-line current measurements in primary value
13. Comprehensive local HMI
14. Universal auxiliary supply
15. Optional MODBUS RTU or IEC 60870-5-103 communication
16. Non-volatile memory for setting and fault records
17. User selectable rated frequency 50 / 60 Hz
18. Configurable binary inputs, outputs and alarm LEDs
19. Two setting groups                                                                                                                                                                                        The following functions are available
    1. Three-stage overcurrent protection
    2. Two-stage earth-fault protection
    3. Inrush detection for stability during transformer charging
    4. Thermal overload protection
    5. Negative sequence overcurrent
    6. Phase discontinuity / Single phasing protection
    7. Circuit breaker failure protection
    8. Multi shot Auto recloser functionality for overhead line                                                                                                  This Feeder Protection and Control Relay block is easily insert in your schematic diagram and connect as you like way.                                                                                                                                                                                                                                                                                                                                 The thermal overload protection protects the apparatus from overheating, which causes the premature insulation failures. The function models the thermal behavior of apparatus on the basis of the measured load current and disconnects the apparatus when stored thermal energy has reached the level of set value.
       The maximum permanently stored energy at maximum load current is defined as 100%. Additionally the user can set an alarm level ϑalm to indicate the potential risk. REJ601 2.2FP2 has two instances of OR logic gate, three instance of AND logic gate and four instances of NOT logic gate. The inputs to these logic gates is freely configurable from predefined set of signals. The output of the logic gates can be further configured to connect at Binary outputs, Alarm LEDs, inputs of TON and TOFF timers and for blocking protection functions. The output of the logic gate cannot be connected to its own input. For example,
       output of AND2 cannot be connected to any of the inputs of AND2. The default value for any unconnected input for OR and NOT logic gate is FALSE, whereas it is TRUE for AND logic gate. While configuring NOT logic gate only one signal can be configured at its input, however while configuring OR and AND logic
       gate it is possible to configure multiple signals at the same input. When such multiple signals are connected to the same input they behave as OR gate at that input.