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| MORE than a supplier | HV Power Customer Newsletter September 2009 | |||||
| In this issue: | ||||||
| Tekron TTM 01-E GPS Time Sync with Remote Management | ||||||
Commentary
This month we have a bias of Tekron related items, which is a result of their continued product design, innovation and customer support. More of the mainstream utility industry are venturing into IEC 61850 and Tekron are there to support them with NTP timing sources. For those earlier adopters of process bus technology, Tekron offer the 1PPS (one pulse per second) for IEC 61850 sources, and are now releasing their first IEEE 1588 PTP clock. HV Power are proud to partner and support Tekron, a local NZ company clearly leading the industry with superior technology, reliability and support. To date, HV Power have supplied well over 1000 Tekron products to the NZ market, and now with the introduction of multi-function advanced technology products we are confident that Tekron will continue to both meet your existing needs, and anticipate your future GPS time Synch requirements. Warwick Beech
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The features of this new TTM 01-E are outstanding. In this compact enclosure is a complete GPS IRIG-B clock with optional Ethernet NTP output and optional IEEE 1588 PTP output. If you need a compact low-cost, GPS time source (without local LCD display), then the TTM 01-E is the clock for you! The Ethernet UTP port is supplied as standard to allow remote engineering management. The NTP and PTP capability can be enabled as options. The TTM 01-E is now shipping and supersedes the TTM01 (USB interface) Download TTM 01-E specifications.
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| What in the world is a MOFR and what’s different amongst the MOFR range ? | ||||||
MOFR’s are used to isolate time synchronisation circuits between IED’s, and to convert between different time standards.
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| Tekron Technical Blog Site | ||||||
You can also access the Blog under the “About” tab on the www.tekroninternational.com website
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| Cost Effective Monitoring of Pole Top Auto-reclosers | ||||||
By using a low-cost monitoring device, the control room can be alerted- in real time - when any pole top recloser is operated, or locked out, so field teams can be dispatched promptly to locate the cause of the lock-out and restore power to the consumers. Maintenance staff can then also have an accurate record of the operations, allowing better utilisation of preventative line maintenance resources. Similarly, for Network operators the benefits include having more reliable data on the status of the network, and with more accurate data, network planning engineers can better determine the most appropriate locations for investment and implementation of more advanced automation technologies. The Nortech range of self contained RTU’s are relatively low-cost monitoring devices. They have a 10 year battery life, eliminating the need for VT’s or other pole top mounted equipment. Using a simple hardwired connection of the RTU to the recloser , the RTU communicates via GSM/GPRS to a server, providing a web page interface accessible to your staff. HV Power can host this service for you, or supply for installation into your control room. Features include automatic SMS and email notifications, plus a DNP interface option to your SCADA system. Find out more about Nortech Utility Applications.
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| Office Grade, Industrial or Substation Grade Ethernet? | ||||||
Typical features include IP 53 enclosures (protection against dust and spraying liquids), conformal coating for corrosive environments, fanless design for high reliability, wide temperature withstand (-e.g. 50 to +85 deg C), IEC 61850 EMC and Operating Conditions Class for Power Substations and IEEE 1613 Class Environmental Standards for Electric Power Substations. Products for substation environments are designed to specific IEEE 1613 requirements of electrical robustness to withstand the high voltages that can occur on substation equipment during fault conditions. To keep it understandable, GarrettCom also offer “Ethernet Core”, “Field”, “office grade”, “industrial” and “Extended Temperature” versions of many products. These simple classifications allow you to quickly select the product appropriate for the environment. GarrettCom’s Substation Networking Product summary gives a handy overview of features and products, plus provides links to informative summaries of IEEE 1613 Class 2 requirements for substation Ethernet.
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| Library of SIPROTEC CFC Logic Designs | ||||||
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Access the CFC design library here then click on the CFC-Applications link.
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| Surge Protection "Easy Choice" Diagram | ||||||
Download NZ Easy Choice Diagram
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| Don’t Redraw, Use SIPROTEC’s Connection Diagrams | ||||||
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| SIPROTEC EN100 Interface Connector Changes for IEC 61850 | ||||||
All new SIPROTEC relays will ship with LC connectors, but EN100 cards with ST connectors will be available independently till 2011. The new LC connector interfaces are fully compatible with current ST versions, and can be intermixed in projects. There is no firmware difference. For a short time, LC to ST interface adapters will be supplied with EN100 equipped SIPROTEC relays, and thereafter these can be ordered separately.
| Copyright 2009 HV Power Measurements & Protection Ltd | |||||
Tekron have announced a major upgrade to their entry level GPS clock. According to Tekron spokesperson Marcel Geor, “the TTM 01-E is like we’ve jammed a V8 into the TTM 01 and filled it with rocket fuel”.
New to the Tekron website is detailed information on the isolated signal repeater/converter “MOFR” family. If you have been confused as to which MOFR did what, now is the time to check out the new and improved MOFR documentation. Use this 
The Tekron website now also posts a 
Full remote control of pole top reclosers can be expensive, especially when new VT's, communications, an RTU, power supply and batteries are all required. The cost can limit the uptake of such technology, and divert funds from other more worthy projects. An alternative approach is the selective installation of low-cost monitoring equipment.
GarrettCom® uses the terminology “Edge” to refer to those devices that are specifically designed with environmental and electrical withstand to be used on the outer edges of your substation Ethernet network. These are the locations outside of the substation temperature controlled environment, and those field locations closest to the source of electromagnetic interference. 
CFC is user defined logic in SIPROTEC relays that is typically created by the Protection Engineer. CFC logic in Siprotec relays follows IEC 61131, the manufacturer independent standard for industrial controllers. The Siemens SIPROTEC website provides a free library of CFC logic routines for use in the SIPROTEC range of Protection relays. Most of the examples in the collection resulted from practical applications. As some solutions can be complex, the CFCs are separated into modules that are easier to manage and understand. This site is updated from time to time with new modules.
To help customers in NZ select the appropriate LV surge protection for main or sub-distribution switch boards, HV Power have created an “Easy Choice” diagram showing recommendations in accordance with IEC and NZ standards for medium and high lightning exposures. 
Siemens offer online downloadable copies of most relay connection diagrams in pdf, AUTOCAD, ELCAD5 and ELCAD7 format. Save some time and 
For our SIPROTEC protection relay customers using IEC 61850 protocols, the EN100 optical interface card is shortly to undergo changes. From the end of September the EN100 interface will be delivered with Duplex-LC connectors rather than ST connectors.