Motor operated circuit breakers - ABB

This section describes ABB motor operated circuit breakers

Component Not Supported: Circuit breakers are not currently supported in TyphoonSim. Adding circuit breakers to your model will prevent you from being able to run your model in TyphoonSim. Please disable or remove circuit breaker components from your model before attempting to run your model in TyphoonSim mode.
Table 1. Motor operated circuit breakers
component component dialog window component parameters

Single phase circuit breaker

Two phase circuit breaker

Three phase circuit breaker
  • General
    • Control length
    • Close delay
    • Open delay
    • ON signal duration
    • OFF signal duration
    • Reset signal duration
    • Initial state
  • Output
    • Feedback output
    • Signal type

Breaker properties are described in Table 2.

Table 2. Circuit breaker properties
Group Name Description
General Control length Minimal length of control signal
Close delay Close delay
Open delay Open delay
ON signal duration ON length
OFF signal duration OFF length
Reset signal duration Reset length
Initial state Breaker initial state
Output Output signals type Choose the type of output signals
Input to the circuit breaker component is a Signal Processing signal of length 2:
  1. First signal is used as an SWITCH CLOSE signal for the breaker
  2. Second is used as a SWITCH OPEN signal for the breaker
Output of the circuit breaker is a Signal Processing signal of length 5:
  1. First signal is the ON feedback from the breaker
  2. Second signal is the OFF feedback from the breaker
  3. Third signal is the RESET feedback from the breaker
  4. Fourth signal is the AUX_C feedback from the breaker
  5. Fifth signal is the breaker On/Off feedback

Figure 1 illustrates the proper way to connect the breaker's signals. In the example digital inputs and outputs are used.

Figure 1. Circuit breaker wiring

Circuit breaker model

From the electrical circuit point of view, the circuit breaker element is modeled as an ideal switch. Switch state is defined by a control FSM (Finite State Machine) block (Figure 2). The control FSM features two user-defined control inputs, SC (switch close) and SO (switch open). The output signal close controls the ideal switch. There are four additional output signals used as feed backs from the circuit breakers: MOE-ON, MOE-OFF, MOE-RESET, and AUX-C.

Figure 2. Circuit breaker block diagram
The UVR signal is used to detect when the MOE power supply is less than 70% of its rated value. This signal is not implemented. UVR can be emulated by enabling software control of the circuit breaker from HIL SCADA.
Figure 3. Timing diagram

Control FSM function is defined by the state diagram in Figure 4.

Figure 4. ABB motor operated circuit breaker Control FSM function
Note: All outputs are implemented as active high. If outputs are used as a feedback in active low form, the Digital output invert feature from HIL SCADA can be used.
Note: Trip logic is not yet implemented. A tripped output will be inactive at all times.