High Speed Bus Transfer Device


Power energy availability is crucial for providing reliable power production for essential processes in power stations and industrial plants where lots of induction motors are applied. The E3-HSBT devices are designed to perform automatic high speed switching to a back-up power supply if the main feeder gets tripped.
In addition, the function takes into consideration the changing voltage and frequency of high power induction motors operating on the unsupplied busbar by controlling the moment of switching in order to avoid high current surges and mechanical stress for the rotating machines.
The IED includes wide range of control and supervisory functions which provide full control and user defined interlocking schemes for the primary switchgear at the substation

Product details


♦ Native IEC 61850 IED with Edition 2 compatibility.
♦ Scalable hardware to adapt to different applications.
♦ 84 HP or 42HP wide rack size (height: 3U) with several mounting methods: Rack; Flush mounting; Semi-flush mounting; Wall mounting; Wall-mounting with terminals; Flush mounting with IP54 rated cover.
♦ The pre-defined factory configuration can be customized to the user’s specification with the powerful EuroCAP tool
♦ Flexible protection and control functionality to meet special customer requirements.
♦ Advanced HMI functionality via color touchscreen and embedded WEB server, extended measuring, control and monitoring functions.
♦ User configurable LCD user screens, which can display SLDs (Single Line Diagrams) with switchgear position indication and control as well as measuring values and several types of controllable objects.
♦ Various protection setting groups available.
♦ Enhanced breaker monitoring and control.
♦ High capacity disturbance recorder (DRE) and event logging (data is stored in non-volatile memory):
      ° DRE for up to 32 analogue and 64 digital signal channels with duration up to 10s and sampling rate up to 2kHz.
      ° Event recorder can store more than 10,000 events.
♦ Wide range of communication protocols:
      ° Ethernet communication: IEC 61850; IEC 60870-5-104; DNP3.0 TCP; Modbus TCP
      ° Serial communication: DNP3.0; IEC 60870-5-101/103; MODBUS, SPA.
♦ Legacy network based protocols via 100Base-FX and 10/100Base-TX (RJ45). Optional communication ports: Fiber optical Ethernet (MM/ST, SM/FC), RJ45, Serial POF, Serial glass fiber, RS-485/422.
♦ The EuroProt+ family can handle several communication protocols simultaneously.
♦ Built-in self-monitoring to detect internal hardware or software errors.
♦ Different time sources available: NTP/SNTP server; Minute pulse; Legacy protocol master; IRIG-B.


The E3-HSBT configuration measures three-phase voltages from each side of the handled circuit breakers. The main function is the High Speed Bus Transfer function - the configuration contains as many instances of it as many CBs there are to transfer between. Each configuration is unique according to the actual bus arrangement which may vary largely but still can be handled thanks to the highly configurable logic of the device.

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