RK3000 High Frequency Power Supply
Operating Manual
Page 13 of 73
Average Readings
For situations where the process being controlled is highly erratic or fluctuates a great
deal, the display can be programmed to show average electrical readings over a 5
second time period. This smoothes the display movement and makes it easier to read.
Coordination System
Timer relays are an optional feature of the control system. When timer relays are
supplied, their operation must be coordinated so that, if desired, multiple relays are not
operating at the same time. This only affects systems that are using the relays for
operating motor driven rapping systems or wet precipitator wash down systems.
Definition of Control Responses
A transformer-rectifier will operate at its rated current or voltage levels unless the
microprocessor transformer control circuitry detects a transient. When a transient is
detected, the control automatically takes action to lower the operating levels of voltage
and current.
The types of transients that the control detects are:
Spit
– Low current, fast rise time electrical discharge that extinguishes itself
instantaneously. Due to self-extinguishing characteristics, the RK3000 takes no control
action when a spit is detected.
Spark
– Low current, relatively slow rise time electrical discharge that persists for one half
cycle or less before extinguishing. The control phases back (reduces) the power for this
condition.
The spark rate that is displayed in the Electrical Reading Screen is a sixty (60) second
rolling average of these spark occurrences.
Arc
– High current electrical discharge that persists for great than one-half cycle and
usually requires removal of electrical power before it will extinguish. The control
quenches (turns off) the power for this condition.
The arc rate that is displayed in the Electrical Reading Screen is a sixty (60) second
rolling average of these arc occurrences.
Display ID
In order for information to be properly transferred between the Keypad and Display Unit
and the Control Unit, over the communications system, each Keypad and Display Unit
must have a unique ID number.
Energy Management (Mgt) Setup (Optional Feature)
If your control system is communicating with a Transceiver(communication gateway
between TR, Rapper, and Central controls), and the optional Energy Management
System has been included in the Transceiver, the control can be assigned to one of four
independent energy management systems. And within each energy management system
the control can be assigned to a particular electrical field.
External Alarm/Trip
There are four (4) external alarm inputs (Alarm 1 through Alarm 4) that can be used to
connect normally closed alarm contacts for such things as high TR temperature, high/low
TR oil level, full hopper condition, drag conveyor failure, high O
2,
or any other condition
where a TR alarm or trip may be desired.
