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  MORE than a supplier     HV Power Customer Newsletter February 2019    
           
        Can your drop-out fuses provide a three-phase-trip?    
 

    In this issue:

Photo - Warwick Beech

 Commentary

Software updates

With customers heading towards adopting service intervals of five years for numerical relays, a growing headache for technicians is that of software updates. The scenario is that since the prior relay service, it’s likely that the Windows version is no longer available, and the manufacturer’s software tool accordingly has undergone several changes.

Just sorting out PC and software to connect to the relay can be a task. Our support team is often called to assist with Windows permission issues, and getting the setting software operating on a customer’s updated PC. Sorting out software versions, device drivers and firmware ‘in the field’ is never the ideal place. We recommend planning ahead to avoid the headaches.

With less contact (i.e. familiarity) with the relays, and more Windows/software updates, we see a strong need for technicians to have a representative relay on their test bench allowing:

  • occasional connection to keep the skill level up with software
  • an environment to prove PC and connection before the deadline of the on-site job.

Regards

Warwick Beech

 

   

Of course not!  So how can you prevent loss of a single phase to rural customers with three phase equipment?

Where three phase trip is required, replace your drop-out fuses with Fusesaver and its communication module for ganged operation. Communication between the Fusesavers provides simultaneous three phase trip and close. The Fusesaver in the O-C configuration works in association with line fuse. However, while still named Fusesaver, the O-C-O configuration (open-close-open) allows the line fuse to be eliminated. This essentially provides many of the same functions as a recloser – but at a much reduced cost and with a much simpler installation

Fusesaver can be used in your overhead distribution network in a number of ways to provide:

  • a reduced interruption time to customers by eliminating fuse blowing due to transient faults
  • a three phase ganged solution
  • a simple recloser, with or without remote control/monitoring
  • useful network performance data

Find out more about Fusesaver in this video.

Siemens Fusesaver
Fusesaver communication module.

 

   
      Siemens A8000 RTU I/O modules    
     

In last July’s newsletter we introduced the topic of using the A8000 (CP-8021 processor module) as a versatile protocol converter. This YouTube video shows the range of I/O modules that can be added to provide RTU and Automation functionality.

For a quick introduction to the A8000 range see this video.

CMIC RTU/Automation Controller now the A8000
A8000 RTU/Automation Controller with I/O modules.

 

   
      36 kV Ring Main Units    
     

The 36 kV 8DJH-36 is physically a slightly larger, scaled-up version of the very successful 8DJH RMU. More configuration options have been released for the 36 kV series, most recently a bus section panel. This option provides designers even more possibilities for applications, such as low-cost power distribution systems and switchboards for larger industrial sites.

In comparison to primary 1000 A rated equipment, the 8DJH-36 is a highly cost-effective range which now includes several more predefined, lower cost, single SF6 gas block configurations. These include the versatility to allow future extensions of panels to the left or right-hand side.

The 8DJH-36 is rated 36 kV (20 kA 3 sec) with a bus current rating of 630 A. The range includes:

  • Ring switches
  • Cable to bus panels
  • Transformer fused T-offs
  • Circuit breakers
  • Air insulated billing/metering panels – arc rated (with option for cable connection left, right or both)
  • Bus section
  • Ability for VTs to be mounted in the switchgear panel (a special extra panel for V’s is not required)
  • Automation for remote control – including earth switches if desired

The 8DJH-36 is being used for outdoor-to-indoor conversion of 33 kV switching stations locally in New Zealand, and for mobile substations. For many of New Zealand’s smaller substations, where a 630 A rating is sufficient, 8DJH-36 offers considerable saving in capital cost compared to traditional primary switchgear.

The outdoor enclosure option provides even more possibilities for the 8DJH-36 to be used in outdoor substation refurbishments. See the Siemens website for further 8DJH-36 information.

Siemens 8DJH-36 36 kV RMU
Siemens 8DJH-36 Ring Main Unit for 33 kV applications.

 

   
      New DIGSI 5 / SIPROTEC 5 training videos    
     

We have updated the DIGSI 5 resources on our website technical library to link to the latest Siemens DIGSI 5 and SIPROTEC 5 videos. These videos show a more up-to-date version of DIGSI 5, and the 11 ‘chapters’ give a good introduction to using DIGSI 5, without taking too much time.

We have also linked a few other Siemens videos, which we believe have a good level of technical content in related fields.

In a later newsletter item you will note we have updated a few of our DIGSI 5 Quick Notes. This year we are planning to invest some more resources to fill in the gaps between the existing videos and our Quick Notes, so feel free to contact me (warwickb@hvpower.co.nz) with any suggestion on DIGSI 5/SIPROTEC 5 topics/issues that you would like to see addressed.

 

   
      WinPQ, WinPQ Mobil, WinPQ Smart and PQI-DA smart Power Quality updates    
     

Updates for most A.Eberle Power Quality devices have recently been released. The latest versions are:

WinPQ mobil (for PQ-Box 100/150/200/200) V4.2.3.1

WinPQ (update for Enterprise version connecting to fixed installed devices) V4.5.1

WinPQ smart (for PQI-DA smart) V4.5.1

PQI-DA smart firmware 1.8.10

PQI-DA smart
PQI-DA smart power quality recorder.

 

   
Services Section What is your Virus software up to?

An interesting recent support case was where a customer could not open the relay setting files he had been sent. We too had the same issue when a copy was sent to us. The setting file format in this case was a multiple folder/file hierarchy and we found the issue to be that somewhere in the chain of the setting file being updated and sent to the technician, a virus checking software had taken exception to some of the setting file contents removing key files.

Is this an interesting omen for the future?

 

  WinConfig 13.1.2 installation versions

For those looking to obtain the latest version of WinConfig to support A.Eberle’s new REG-D/DA ‘PED-SV’ SCADA cards, you might notice that the A.Eberle website has two versions of WinConfig.

  • 'Installation Version' – This is WinConfig but packaged in a windows installer to help overcome some Windows 10 security issues customers may experience. THIS IS THE VERSION WE RECOMMEND.
  • 'Copy Version' – This is the same raw program folder arrangement with the bin file for running the program – the same arrangement of how earlier WinConfig versions were supplied (where you can copy the folder to any directory, and then run the WINCONF.exe file in the BIN directory)

Links for WinConfig 13.1.2 have been added to HV Power's Voltage Regulator Technical Library/support page.

(WinConfig 13.1.2 is the latest release.)

 

  SIPROTEC 5 Remote Engineering Access – Quick Notes updated

We have updated our DIGSI 5 Quick Notes to add more detail on connecting to SIPROTEC 5 relays using DIGSI 5. These updates and more can be found in the SIPROTEC 5 section of our Technical Library.

To access the relay, the simplest method from your PC is via the relays front panel USB interface, but it is also possible to 'connect' via the relay's in-built Ethernet interface, or optional SCADA Ethernet interface.

With access via Ethernet, you might be ‘local’ with your PC in the same subnet, or ‘remote’ with your PC in a different subnet – so a different approach is required. Our updated Quick Note now covers those possibilities, so Quick Note QN0007 & QN0008 have been substantially rewritten.

 

Copyright 2019 HV Power Measurements and Protection Ltd