On 30 November our Auckland ‘Porters Ave’ office will be moving, and consolidating to new larger and combined premises with our ‘switchgear division’. Our location will be:    Unit K    3 Gloucester Park Road    Onehunga Our phone, fax and PO Box details remain unchanged.

We're moving to larger premises to support our rapidly growing switchgear business. Gloucester Industrial Park provides a single site for HV Power's Auckland operation, with significantly expanded warehousing and factory space for switchgear. We welcome you dropping by in the new year to see our new facility.

For your project planning and forward ordering, please note that HV Power’s offices will close on the afternoon of Friday 20 December 2019 and will reopen on Monday 6 January 2020.

We will be monitoring our main office phone for messages during the Christmas period, so if you need urgent support this will be the best way to get in touch with us (that is, phone '0800 HV CALL' [0800 48 22 55])

DIGSI 5 version 7.9 no longer feature the plug-and-play concept. Projects with devices created by importing from a ‘real’ relay are not marked as plug-and-play. This simplifies the file types and gives greater flexibility to the user.

A customer call this month said that when using the DIGSI 5 “Project Export”, only the TEA-X option was available/enabled. How could the file be saved in DEX5 format to send to someone? (The DEX5 option was greyed out in the list of export options).

There are two topics here:

1) The recommended method to share data

This assumes you have created a project and downloaded device data into a project. The concept is to send the entire project file. This can be done by following the steps below.

• Use the Project/Archive function [ .dz5 Archived Project]
• Manually locate the project file, copy and send (or zip and send) – but this a duplication of the above
• Export just the device file by highlighting the relay in the project tree and selecting Export. This requires the other user to create a project to then import the device file into [ .dex5 Device Archive]

Our DIGSI-5-QN001 “Quick Note” provides more details on this which follows longstanding DIGSI-4 practices.

2) What is the TEA-X method?

TEA-X is a more universal format (using XML) allowing DIGSI information to be accessed via different applications (for example, the Excel import/export tool discussed in our Dec 2019 newsletter).

The TEA-X format can also be used between different versions of DIGSI. We recommend that if opening an earlier DIGSI 5 project/device file version in a later version of DIGSI 5, you use the normal .dz5/dex5 file formats and follow the automatic update process that follows. It is possible to also use TEA-X format files for this transfer. The interesting capability of TEA-X is that it allows files saved in a later version of DIGSI 5 to be opened in earlier versions of DIGSI 5. We don’t normally recommend ‘downgrading’ but it is possible. If downgrading, please exercise care with a detailed checking of the resulting file – we don’t have experience of how ‘unsupported’ information is handled.

Remember ‘DIGSI-5-QN008’ provides a step-by-step guide to extracting settings and fault records from a relay and saving, then references QN0001 for how to save it.

We have updated our Fault Passage Indicator section of our website to cover the range of preferred products we offer to New Zealand customers. The information includes the standard NAVIGATOR, SMART NAVIGATOR and SMART NAVIGATOR 2.0 series.

The linked Technical Library includes copies of the NAVIGATOR LM and SMART NAVIGATOR Quick Sheets and timeline examples. There are useful reference sheets for your field staff.

SMART NAVIGATOR 2.0,        Pole Master,       SMART NAVIGATOR 2.0 SWER.

See our website for more details.

To help introduce our expanded range of switchgear, we have created our “Switchgear Division 2019 Shortform”, which outlines our 11, 22 and 33 kV switchgear range. A handy product gallery provides the key features.

HV Power's switchgear shortform

HV Power is pleased to offer Siemens GEAFOL series of cast resin-transformers. With the onerous bunding requirements for oil-filled transformers, dry-type is becoming increasingly popular. Typical use is within electrical service room’s basements of buildings, tunnels, wind turbines and safety-critical environments.

Siemens GEAFOL dry-type transfomers.

Cast-resin is flame-retardant, self-extinguishing, humidity-proof and low noise.

The GEAFOL windings are cast in resin under a vacuum. The foil windings are locked in place with high mechanical and dielectric strength, protecting the transformer from severe operating environments. The use of foil winding has significant advantage over wire wound VPI/VPE technology.

Voltage ranges of 33 kV to 415 V and power ratings of up to 50 MVA are possible.