008 July/Aug 2005

Welcome to our Summer Newsletter

As you all know July and August are the Traditional Holiday months and our newsletter is shorter than normal as a consequence.

However shorter doesn't mean we don’t have anything to say!!!

We would like to remind all Electrical & Design Engineers that the Technology & Reliability of soft starters have never been better

STILL USING STAR DELTA?
ITS NEVER TOO LATE TO SOFT START

If you are still using Star Delta in your designs, take a look at our website (www.ralspeed.com) and see the positive advantages the soft starter brings:

• Closed Loop Current Control
• Wide Range Overload Protection
• Load Monitoring
• Shearpin Trips
• Underload Trip
• 1000 event downloadable event log
• No heat loss with built-in by-pass contactor
• Little or No Harmonic Distortion
• No EMC Problems

NEW – VERSIBRAKE – DC INJECTION BRAKE UNIT

(5.5KW-160KW)

Typical Applications: sawing machines centrifuges wood working machines textile machines conveying systems

Features:

• DC braking with one-way rectification
• controlled by microcontroller
• suitable for all asynchronous motors
• easy mounting, also for retrofitting into existing plants
• wear-resistant and maintenance-free
• special voltages up to 600V (25A-devices)
• special voltages up to 690V (devices from 40A)
• integrated braking contactor (devices up to 60A)
• for snap-mounting onto 35mm top-hat-rail (devices up to 25A)
• degree of protection IP 20 (VB 230/400 - 25)
• degree of protection IP 00 (VB 230/400 - 40 ... 600)
• VB 230/400-25 UL-listed

Function:

• control via motor contactor
• standstill detection
• braking current limited to rated device current
• remanence time optimization
• braking current infinitely adjustable
• potential-free output for motor contactor
• interlocking during braking
• potential-free output for fault signaling relay
• potential-free output for braking contactor
• (devices from 100A)

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‘KW OUTPUT’

We also continue to supply our specially designed Ultrasonic level detector panel for use in the water Industry.

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R54 UNITS

Sales through our stockist and distribution continues apace but we ‘want more!!!’.

We are looking for stockists in the SE, SW, NE, Wales and Scotland – you may have even received our promotional literature recently in the post – don’t ignore it – call us – give us a chance.

Don’t forget that these units cannot be purchased from Ralspeed direct but we will back them up technically.

SO YOU SELL THEM – MAKE MONEY – ANY PROBLEMS – RALSPEED SORT THEM OUT – NO PROBLEM

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NEW DEVELOPMENTS

We are now adding accessories to our R54 range:

• Spreader Box – to enable more room for the power cables.
• Remote Control Unit. This is an IP54 sheet steel or polyester cabinet complete with a remote keypad and local remote keyswitch. The CAT5 cable is supplied and comes in 25/50 and 100 metre lengths (over 100m can be supplied)
• The R54 series is to be extended from its present limit of 90kw to include 4 more kilowatt sizes – i.e. 110/132/160/186kw. They will still be in wall mounting enclosures but the physical dimensions will increase to a footprint of 900x600x300 hxwxd-mm. These sizes will follow the same format as the existing series. The specification will include isolator, stop/start pushbuttons and door mounted keypad and LCD display. Some extra features will be local/remote keyswitch and the user will be able to specify a MCB instead of an isolator.
• Although the present physical sizes of all our chassis will remain for the rest of this year, a new range of chassis units will be introduced for 2006 which will be smaller but still retain the robust power connections

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 Ralspeed LTD
 Unit 6, Red Rose Court,
 Sunnyhurst Road,
 Blackburn
 Lancashire
 BB2 1PS
 Tel 01254 582345
 Fax: 01254 668414
 Email: sales@ralspeed.com
 Email: info@ralspeed.com