Electricity + Control September 2015

PLANT MAINTENANCE, TEST + MEASUREMENT

ROUND UP

Industrial serial device servers with dual LAN

Solution for pump protection A range of electronic motor protection and control relays, especially designed to protect pumps and motorsfrom a variety of faults associated with this market is available from NewElec .The entire K series is aimed at rendering assistance to pump users and consultants that specify protection require- ments for pumps.What makes these relays unique is that they incorporate features such as dry-run protection and phase reversal protection which are basic requirements for the pro- tection of pumps. A model exists for every budget.The more upmarket models also include built-in features that allow for a user-selected pump priming time, as well as a user-selectable pump operating time slot.Automated re-start times for dry-run trips are available together with selectable automatic overload trip resets. A useful asset on some models permit the user to measure dry-running conditions by means of power factor measurements instead of conventional current measurement

Antaira Technologies is a developer and supplier of device networking and industrial communication products and is proud to introduce the advanced version STE-708 and STE-716 Industrial Serial Device Server series that encompasses device server network redundancy and zero data loss redundancy feature solutions. Antaira Technologies’ new STE- 7xx series is a 1U 19” rackmount type designed serial-to-Ethernet device server designed to transmit any standard serial RS232 or RS422/485 data through the ubiquitousTCP/IP Ethernet based network.This series comes with optional models supporting 8 (STE-708) or 16 (STE-716) serial COM ports with 2,5 kV serial optical isolation protection for serial data.The new STE-708 and STE-716 are embeddedwith dual independent IP address LAN (10/100Tx) ports to support anymission critical applicationwith built-in dual subnet mode to execute a data redundancy solution. The device servers can also be connected directly to a redundancy network infrastructure by accessing RSTP or ERPS ring protocol function. An LCM (Liquid Crystal Monitor) is installed on the front panel of the unit that can be used to display the unit information and perform basic configurations.This product series has different optional models to support 100~240 Vac or 24/48 Vdc power input and each model version provides extended operating temperature support of -20° to 70° C.The STE-708 and STE-716 series can be configured

so that greater accuracy can be achieved.The range includes the most basic features that need manual adjustments directly by the user to the more sophisticated that can only be programmed by the supporting software avoiding possible setting interference by users. These include the monitoring of sta- tistical information such as the number of starts, trip faults and pump efficiency. Motor protection is achieved by the usual current measurement methods and user-selectable phase voltage. Enquiries: Email sales@newelec.co.za

via a user-friendly web console, windows utility software, or Telnet command line through the serial console (RS232 DB9 male) port in front of the unit. Enquiries: ElyseWang. Email sales@antaira.com.tw or james.liao@antaira.com.tw

Freedom is an essential factor for innovation, modernization and unlimited possibilities. The new System pro E comfort MISTRAL® series of consumer units offers you freedom. These innovative units incorporate all you expect from ABB: Ample internal space, flexible configuration and a unified range of accessories. IP41 and IP65 ratings allow for installation in industrial, commercial and residential environments. For additional information: www.abb.co.za/lowvoltage

ABB South Africa (Pty) Ltd. Low Voltage Products and Systems

Tel. +27 10 202 5880 E-mail: LP@za.abb.com