1 Year Warranty
Description
Overview
Essential details：REF542PLUS 2RCA029395 Feeder terminal REF 542plus
The REF 542plus feeder terminal is a compact digital bay control technology solution. It can be used in several different medium voltage applications, such as in feeder protection, transformer protection and motor protection.
The feeder terminal REF 542plus, like its predecessor REF 542, combines measurement, monitoring, protection, control and self diagnostics in one package. With its integrated communication protocols, the REF 542plus can be easily incorporated into any substation automation system from ABB or third parties.
These new generation devices provide exceptional flexibility and scale-ability resulting in smart and clean solutions compared to more traditional approaches. The software solution allows you to use the REF 542plus in all ABB primary air and gas insulated switchgear solutions.
Scope
- Bay control and protection unit
Product benefits
- A variety of functions precisely programmed for the requirements and the substation
Product features
- Measurement
- Monitoring
- Control
- Protection
- Communication
- Substation automation.
REF542PLUS 1VCR007346
lf you need to inquire or purchase ,please send the product models to my email or call medirectly .
sunny He
[Email] sales@saulcontrol.com
[Mobile] 86-18059884797
[WhatsApp] 86-18059884797
[Skype] sales@saulcontrol.com
REF542PLUS 2RCA029395 Feeder terminal REF 542plus
The REF542plus is based on a real-time microprocessor system. The measurement and protection functions are executed by a Digital Signal Processor (DSP), while a Micro Controller (MC) is executing the control functions. Due to this task separation there is no impact between the start and the trip behavior of the implemented protection scheme, should the control scheme be modified. The Communication Processor (CP) is needed for connection to a station automation system. A block diagram of the REF542plus is shown in figure 3.
REF542plus, as shown in figure 3, consists of two parts, a Central Unit and a separate Human Machine Interface (HMI). The Central Unit contains the power supply, processor and analog and binary Input and Output (I/O) modules, as well as optional modules for supplementary functions.
The HMI Control Unit is a stand-alone unit with its own power supply. It can be installed on the Low Voltage (LV) compartment door or in a dedicated compartment close to the Central Unit. The HMI is normally used to set the protection parameters and to locally operate the switching devices in the switchbay. The HMI is connected to the Central Unit by a shielded, isolated twisted pair according to the RS485 interface. Figure 4 shows an installation of the Central Unit and the HMI Control Unit in the LV compartment of a switchboard for the switchbay
