RE: [microhydro] Re: Electronic Load Controllers
- Hi Joe,
The load controllers that have been widely used are from GP Electronics, UK
and Thomson and Howe Energy Systems, Canada - these controllers are
excellent for maintaining stable frequency and voltage, and are generally
for synchronous generators(single phase or three-phase). The one from New
Zealand is good for generators less than about 15 kW and single phase only.
The cost becomes too high for three-phase systems - as it suggests to use
one controller for each phases.
For induction generators, well established low-cost controller area
available from UK, Canada and Nepal. If you are interested I would be happy
to send you the info I have and their contact addresses.
From: Joseph Hartvigsen [mailto:jjh@...]
Sent: Thursday, September 30, 2004 11:24 AM
Subject: [microhydro] Re: Electronic Load Controllers
I like what I've read and seen online about the powerflow unit if you
want very good frequency control.
If you only need rough voltage limiting control a simple circuit like
the one in the file triac.gif may do.
There is also a controller "humingbird" design on this group founder's
and a company named Thomson & Howe in BC Canada.
Hernando, an active group member is also developing a control unit and
may be looking for a test site.
It looks like you have enough power to consider a standalone direct AC
system. Systems smaller than ~5kW might not be practical in this mode
unless it were used just for running lights and heating with no motors
of any size.
Hartvigsen-Hydro Turgo Runners
--- In email@example.com, "Ross Berry - Energy Source Ltd"
> Hi AllAC 50 Hz
> I am looking for an electronic load controller suitable for a 230v
> turbine. Typical O/P load of the turbine is about 30A. It isexpected that
> the controller will monitor the frequency, and dump load intoexisting hot
> water elements.Does your company feature in the microhydro business directory at
> Does anyone know of a source for these devices?
> Thanks for your assistance
> Ross Berry
> [Non-text portions of this message have been removed]
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- dear sir,
I have made a 3hp induction generator as test machine for micro hydro study.i want to know about controller for IG that can maintain constant Voltage & frequency.please send me list of manufacture in india or nepal
Win a castle for NYE with your mates and Yahoo! Messenger
[Non-text portions of this message have been removed]
- Received from India, if anyone wants the brochure, please email me direct [zip file]
We are the manufacturers of Electronic Load Controllers. This is used
for controlling the power output of generator used in micro hydro power
Our range is from 5kW to 50kW. We can always develop ELC for higher
range if required. Please contact us if there is requirement of ELC.
We also make customised test and measuring equipments. Please visit
our website www.retraceelectronics.com for more details.
With best regards,
C1A/14C, Janak Puri,
Telephone: +91 9811339935, +91 9818079802