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  MORE than a supplier     HV Power Customer Newsletter July 2019    
        25 years anniversary heralds significant changes    

    In this issue:

Photo - Warwick Beech


Within a few days of the 25th anniversary of HV Power being formed, the clock has started on the life of HV Power without Geoff Vaughan.

However, with Mike Strong joining HV Power back in 2003 (and his role as General Manager) and myself joining in 2007, we are confident that with this continuity HV Power remains ‘business as usual’ for our customers. There is no significant revolution in our business with Geoff’s departure, just the continuing evolution – but without long-term friend and mentor Geoff.


Warwick Beech


Photo - Mike Strong


There was great deal of tribulation on the final day of signing, when the sudden realisation that our great mentor Geoff Vaughan would no longer be sitting next to us. Geoff’s transition had been slow and gradual as he worked less days – but it was a big step change over the last month. I would personally like to thank Geoff for all his wisdom, coaching and direction as the reins were loosened approaching his final day. This, I am sure, will not be the last we see of Geoff or Judy.

I would also like to thank all our customers and suppliers for all the support of the last 25 years. Warwick, myself and the rest of the team are looking forward to the future.


Mike Strong




HV Power

25 years ago (on 4 July 1994), HV Power was formed. While it is still business as usual, June/July saw some significant changes.

Geoff Vaughan officially retired at the end of June, selling his remaining shareholding to the two existing Directors, Mike Strong and Warwick Beech.

We have taken the first step in moving our Switchgear Division to Onehunga, with our Porters Ave ‘Technology Division’ to follow at the end of the year when our larger premises in Onehunga becomes available.

We have kicked off the implementation of a new business system to allow us to more efficiently handle the increased volume of orders and products our business now handles. This project will take about three months to complete.

We have introduced products that will have significant impact. In the Switchgear division that includes the full range of Siemens 11 kV and 33 kV switch boards, covering ring main unit, primary and secondary class boards. In the Technology Division it's the range of Siemens RUGGEDCOM communication/network products.


      Thanks to Geoff Vaughan    
Geoff Vaughan

Mike, Warwick and the staff at HV Power would like to acknowledge Geoff's significant contribution to the New Zealand electrical utility industry. As the 'V' in HV Power, Geoff introduced some significant new products and technologies to the New Zealand market. The timeline we featured in our 20th birthday newsletter still holds true.

Geoff founded the company with a vision of creating a company where staff focused upon the needs of the customer, getting the job done without the overhead of large company politics. While the products have changed over the last 25 years and we are approaching 20 staff within the company, we believe the same culture exists, and the core philosophy has not changed.

The staff at HV Power wish Geoff (and Judy) the best in his retirement.


      DIGSI 5 V7.9 and SIPROTEC 5 upgrades    

DIGSI 5 version 7.9 and firmware 7.9 has been released for SIPROTEC 5. The main areas of advancement are:

  • Enhanced security – such as role-based access
  • SIPROTEC 4 Line Differential Relays can now communicate to SIPROTEC 5 relays at the other circuit end (e.g. 7SD610 <-> 7SD82 etc)
  • New 1GB comms interface with merging unit/process bus/sampled measured values support
  • Point-on-wave switching
  • Web-browser functionality for remote engineering management (fault record extraction)

Contact us now for more details.

For some time, an improved performance microprocessor has been shipping in SIPROTEC 5 modular protection relay. This does however introduce some firmware compatibility limitations. The earlier CP200-based designs support firmware up to 7.5. Later CP300_1 designs support firmware 7.0 to 7.9 (and possibly later) while the newest CP300_2 designs support firmware 7.5 onwards. CP300_2 is needed to support some of the new security features in 7.5 onwards. Contact us for specific information

Siemens protection relay prices will be raising for all orders placed from 23 September 2019. This will be typically 2% for SIPROTEC 5 products and 5% for all other products.


      Fusesaver – Rechargeable Comms module    

Fusesaver will soon be shipping with a rechargeable communications module. While performance will vary depending upon site and environment, the battery provides backup and communications for up to 10 days, if the minimum line current parameters are not met. The battery can be recharged when current reaches minimum line current specification. With this being a little as 150 mA for the most sensitive of the Fusesaver units, it further supports its use on very lightly loaded rural spur lines, where there was prior concern of prematurely discharging the earlier non-rechargeable battery unit.

See the new Fusesaver brochure.


Siemens Fusesaver
Siemens Fusesaver with communication module


      Compact Modular Recloser 3AD7    
Siemens Compact Modular Recloser 3AD7

By eliminating regular maintenance and using line voltage as power supply, the new modular auto-recloser addresses common problems of obsolete hydraulic reclosers. The compact recloser is fully rated for voltage systems up to 27 kV and features a complete insulated housing that covers all live parts. The lightweight device permits easy installation and fast commissioning, plus the ability for wireless firmware and configuration updates.

The new auto-recloser is suitable for all sites, even those with inconsistent or no line current. Featuring fully configurable protection and four operations in a sequence, the unit presents the ideal solution for sectioning faults on long rural distribution lines. The system design facilitates an uninterrupted operation for most efficient service. Unlike hydraulic reclosers, the auto-recloser has no need of periodic inspection and maintenance.

The initial release of the 3AD7 is a single-pole recloser, with support for ganged operation to follow in the future.

The 3AD7 is line voltage powered – requiring no minimum circuit line current and no auxiliary supply!

See the Siemens website for more details.


Copyright 2019 HV Power Measurements and Protection Ltd