VIDEO: ÖLFLEX® SERVO FD 796 CP

ÖLFLEX® SERVO FD 796 CP is an industrial grade servo cable with two options available: power only or power and feedback conductors. It has a polyurethane jacket and is designed for faster speed and acceleration which increases the economic efficiency of the machines.

Call 800-774-3539 or email us sales(at)lappusa.com for more information about this product or to order a sample.

High Performance Servo Cable for High Acceleration Motor & Drive Applications

NEW! ÖLFLEX® SERVO FD 796 CP

 

ÖLFLEX® SERVO FD 796 CP is an industrial grade servo cable with two options available: power only or power and feedback conductors. It has a polyurethane jacket and is designed for faster speed and acceleration which increases the economic efficiency of the machines.

Recommended Applications:
Motor connections for Servo motors, automation equipment, machine tool, food & beverage, automotive, packaging industry and is compatible with most major servo drive manufacturers.


Application Advantage:

• Continuous flexing performance: acceleration up to 50m/s². travel speed up to 5m/s
• Flexing distance up to 328 feet
• Excellent cold temperature performance down to -40°C
• The pairs are individually shielded for noise protection
• PUR jacket for optimal oil and abrasion resistance
• Halogen free

Construction:
Finely stranded bare copper conductors; core insultation is polypropylene; shielded pairs; overall tinned copper braid (85% coverage); non-woven material wrapping over the braid; specially formulated orange polyurethane outer jacket.

Access our full line catalog or if you have any questions, our team of experts will be glad to work with you in finding the best product for your application needs.



Call 800-774-3539 or email us sales(at)lappusa.com

Wind Turbine Construction Video

Click here to view video

Extend the life of your industrial cables & hoses with SILVYN® from Lapp

For applications that require added protection from mechanical or chemical stress, SILVYN® line of conduit offers the perfect solution. With a large selection of highly flexible metal or plastic conduit and matching glands, your installation has all round protection with the flexibility and bending capabilities required for any application. Whether it is indoor or outdoor, SILVYN® conduit has you covered!

SILVYN® also offers a wide variety of cable tracks also known as cable carriers. They are designed to maintain cables alignment in continuous-flexing applications. SILVYN® Cable Tracks increase the life of cable and hoses by protecting them from chemical wear and stress. The tracks are simple to assemble and install, reducing downtime, and greatly improving machine operation and appearance. SILVYN® Cable Track is resistant to oils, gasoline, and coolants.

Visit us at http://lappusa.lappgroup.com

Cable Grounding Methods Compared

To select the best grounding method for shielded cable installations, you have to strike a balance between installed cost and grounding performance. Yet that’s easier said than done.

 

Some of the most common grounding methods, while seemingly inexpensive in terms of the component cost, require labor-intensive installation procedures that can drive up installed cost significantly. 

Other methods lack the full 360º contact between the grounding hardware and the cable braid, reducing the effectiveness of the grounding connection and protection against EMI.




Download the Grounding Methods Comparison Chart or visit http://www.lappusa.com/lapp_grounding_options/

Cable World Magazine - Issue 3/2012

Cable World Magazine

Get your digital copy here

Wind Turbine Standards and Recent Changes

WIND INDUSTRY STANDARDS

There are many wind industry codes in place to ensure the proper installation and safe operation of Wind Turbines:

UL Subject 6141 – Large Wind Turbine Systems.

These requirements cover large wind turbine systems (WT) and electrical subassemblies. With respect to this standard, large WT are wind turbines where a user or service person may, or is intended to, enter the turbine to operate it or perform maintenance. These WT are for use in utility-interactive, grid-tied applications that operate in parallel with an electric power system (EPS) to supply power to common or stand-alone loads. This standard includes requirements for WT intended for EPS grid connections at transmission, sub-transmission and distribution levels, depending on the specifications of the specific WT.

UL Subject 6142 – Wind Turbine Generating Systems, Small.

These requirements cover small wind turbine systems (WT) and electrical subassemblies. With respect to this standard, small WT are wind turbines where a user or service person is not intended or required to enter the turbine to operate or to perform maintenance. These units are for use in stand-alone (not grid-connected) or utility-interactive applications. Utility-interactive, grid-tied WT are operated in parallel with an electric power system (EPS) to supply power to common loads.

UL Subject 2277 – Outline of Investigation for Flexible Motor Supply Cable and Wind Turbine Tray Cable.

This outline covers the requirements for Wind Turbine Tray Cable (WTTC) rated 1000 volts, 90 to 200°C dry and optionally rated 90°C wet. It also covers the requirements for Flexible Motor Supply Cable rated 1000 or 2000 volts and 90°C dry.

UL 1004–1 - Standard for Rotating Electrical Machines – General Requirements.

This Standard applies to rotating electrical machines and linear motors both ac and dc, rated 7,200 volts or less and is used to evaluate both motors intended for field and factory installation. The requirements of this Standard that address the risk of fire do not apply to a motor provided with a metal enclosure where there are no openings in the enclosure through which molten metal, burning insulation, flaming particles or other ignited material could fall onto flammable material, or through which a flame could be projected.

UL 1004–4 – Standard for Electric Generators.

This Standard is intended to be read together with the general requirements of UL 1004–1. The requirements in this Standard supplement or amend the requirements in UL 1004–1. The requirements of UL 1004–1 apply unless modified by this Standard. This Standard covers electric generators, that, when coupled with prime movers, such as engines or electric motors, are used to produce electricity. Both generators (dc machines) and alternators (ac machines) rated 7,200 volts or less, are covered.

CSA C61400–1–08 - Wind Turbines - Part 1: Design Requirements.

This part of IEC 61400 specifies essential design requirements to ensure the engineering integrity of wind turbines. Its purpose is to provide an appropriate level of protection against damage from all hazards during the planned lifetime. This standard is concerned with all subsystems of wind turbines such as control and protection mechanisms, internal electrical systems, mechanical systems and support structures. This standard applies to wind turbines of all sizes. For small wind turbines, IEC 61400–2 may be applied.

RECENT INDUSTRY CODES CHANGES IN NORTH AMERICA

As the use of wind turbines in industry and commercial applications becomes more prevalent, there is a growing need to ensure their proper installation and safe operation, which has prompted mandates to provide clearly written safety standards. While utility companies are monitored by government agencies, non-utility applications are guided by the National Electrical Code (NEC). In 2011, a new section called Article 694 was added to the NEC to ensure installation safety of small wind electric systems. NEC Article 694 covers small wind power single turbines that are rated for 100 Kilowatts (0.1KW). There is no limit to the number of wind turbines that can be installed in a given location. When several of these machines populate the same location, it is referred to as a “wind turbine farm” which can cover an area of several hundred square miles.

To establish consistency and to prevent confusion, UL has drafted several subjects corresponding to wind turbine generating systems: UL Subject 6141: Large Wind Turbine Systems (WT) and Electrical Subassemblies, and UL Subject 6142: Small Wind Turbine Systems (WT) and Electrical Subassemblies. Wind turbines with entrance access are defined as “large” per UL 6141. They are grid-connected and are used for “utility” applications. Wind turbines without entrance access are defined as “small” per UL 6142. They are not connected to the grid and are considered “non-utility.” As the industry grows and the emphasis towards revision of standards continues, UL 6141 and 6142 will be upgraded to include new requirements.

In addition, there are corresponding UL Standards that focus on specific internal components within the wind turbine. For example, Rotating Electrical Machines must meet UL Standard 1004–1. Electric Generators have to meet UL Standard 1004–4, and so forth. In UL Standard 1004–1 AWM, cables are permitted, but only with exceptions. Section 20.2 allows the use of either standard building wire or appliance wiring material (AWM). Section 20.4 permits AWM, provided it has an insulation thickness appropriate for the insulation material type and meets stringent cable construction requirements. As UL Standard 1004–1 allows for the AWM option, building wire is a “listed” product, automatically qualifying it as an NEC compliant wiring method. It’s worth noting, however, that AWM is not an NEC

acceptable wiring method, so it may be subject to potential acceptance issues during an inspection.

Within the construction of the wind turbine, cable trays or raceways route and support cables to accommodate power for the various operating systems. To address safety concerns about performance of these cables under operating conditions inside the wind turbine, UL released an outline of investigation for “Flexible Motor Supply Cable and Wind Turbine Tray Cable.” This Outline, referred to as UL 2277, permits a 1,000 Volt rating and specifies safety and performance requirements for cable intended to be installed within a tray or raceway in the wind turbine. UL 2277 mandates that cables used in a cable tray or raceway in the wind turbine must also meet all performance criteria of UL 1277, known as the “Tray Cable” standard.

Download the full version Whitepaper

http://www.lappusa.com/PdfLoginSignup.aspx?PDF=PDF%2fLAPP_WindPowerEnergy_2012.pdf

 

Visit our website 

http://lappusa.lappgroup.com

Like us on Facebook

http://www.facebook.com/pages/Lapp-Group-USA/287480191288619

Join our Linkedin Network

http://www.linkedin.com/company/lapp-group-usa/

Watch us on Youtube

http://www.youtube.com/lappgroupusa