EVTV Friday Show - March 28, 2014

- Karman Ghia update

- New battery straps for Nissan Leaf cells

- New test benches and inverters on their way

- Basic terminal and cable assembly

PWM Kit received for the Tyco Kilovac EV200A1ANA

Look what came in the mail yesterday :-)

A small PWM kit I ordered few days ago to replace the resistor & capacitor used as an economizer for the Tyco Kilovac EV200A1ANA that requires one

This resistor & capacitor have been doing the job, except that the resistor is burning some energy in heat  and this is maybe no the best way to handle this problem

Now, I just have to switch on my soldering iron and put all this components together on the PCB ...

Link to this item: http://boutique.rhaaa.fr/49-kit-r%C3%A9gulateur-pwm.html

ESS - Kilovac mounted on Control Board & first test

Now the EV200A1ANA is screwed on the Control Board and wired to the charger side command relay

First test on video

The resistor and capacitor are not soldered yet because I am not sure of the best location

I positionned them next to the other Kilovac EV200AAANA, because there is a hole on top of it - toscreww battery cables - and the heat generated by the 10W resistor will be able to get out of the enclosure  through it

The 6 chargers leads will be connected this week end

New charger side Tyco Kilovac Contactor positionned on the ESS Control Board

Work in progress ...

Last night, I removed the automotive 24V relay on the charger side and looked in to mounting the Tyco Kilovac EV200A1ANA contactor on the Control Board of the ESS

Also a one inch M6 bolt to hook all the negative leads of the 6 chargers to the negative of the battery pack 

The two contactors will be side by side, almost touching each other

The resistor and capacitor will be mounted on the side, vertically  

Electronic Parts Store : 2 Capacitors, 2 Resistors & more

Saturday, I finally went to an electronics dealer in the southern close suburb of Paris and found some resistors and capacitors of different values to test in my search of a decent Economizer for my Tyco Kilovac EV200A1ANA Contactor

As I was there I also got some wide Heat Shrink, and a Solder sucker

82 and 68 Ohms 10W resistors

3300uF and 2200uF 35V capacitors

And back home, I tried every combination of resistor and capacitor and finally found out that the 82Ohms resistor along with the 4700uF capacitor was OK, especially at - low - 25V starting voltage - when the pack is empty -

and comsumption is quite low, around 0,3A at 25V, which should be around 8W

So these are the components I will mount on the ESS Control Board along with / next to the EV200A1ANA contactor, as soon as I find time for this