OK, thanks. Will consider a interlock between the racks as well as a
separate ground strip between the racks. Will probably have to isolate
the Bminus and therefore the casing of the HV connector (if circular
connector used), since I will run grounded grid and need a measurement
resistor for grid current to chassis ground from Bminus.
73
LB3HC
Marius
On Fri, Sep 10, 2010 at 4:04 AM, Han Higasa <higasa@plum.ocn.ne.jp> wrote:
> Hi gents
>
> Regarding HV connection I am using RG-8U and
> HN connectors for HV+.
> HV- is connected by a multi-pin metal remote
> control connector with its wire harness including
> AC 100V, DC 12V, grounds, "HV start" and "HV
> ready" signals, and HV- line.
> "HV start" signal control a primary power relay.
>
> It consists an inherent inter-lock function
> - without control connection HVPS never ON.
> And use the order to connect HV+ first on
> operation, disconnect HV+ last on any
> maintenance kept a safety for a couple of decades.
>
> The RF deck acts as a master, and the HVPS a slave.
> A possibility that HVPS works arbitrarily will
> introduce an accident.
>
> The ground side of the HN connectors work as
> a connection of frame ground, but I recommend
> to use an explicit frame ground line to keep
> further safety.
>
> GL, de Han JE1BMJ
>
>
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