Chopper circuits for contactor coils

[CS]

I am looking to reduce the power used by standard industrial 5 and -
12kw contactor coils and think that coil chopper circuits will do the
job. Now I need to find them, or make them, for 240v and 24v coils.
Any ideas??

 

[legg]

On Sat, 26 Jul 2008 05:00:20 -0700 (PDT), CS <colinstone@hotmail.com>
wrote:

I am looking to reduce the power used by standard industrial 5 and -
12kw contactor coils and think that coil chopper circuits will do the
job. Now I need to find them, or make them, for 240v and 24v coils.
Any ideas??

The power consumed/required by the solenoid is not reduced by the
means of power delivery, it is determined by the coil and armature.

Continuous power consumption can be reduced by mechanically latching
the hardware, but this requires added contacts, timing considerations
or state-sensitive drive circuitry.

Semiconductor switch alternatives trade off control power and
versatility for conduction loss.

RL

 

[LVMarc]

CS wrote:

I am looking to reduce the power used by standard industrial 5 and -
12kw contactor coils and think that coil chopper circuits will do the
job. Now I need to find them, or make them, for 240v and 24v coils.
Any ideas??
If you need to reduce energy for a commmmerial endeavor, please contact

me; I have significant experience in lower power in all circuits and
relay actuation in [particular.

Marc