Super Beast- Three-Phase
WYE Application
Presented by: HJ Arnett Industries, LLC
Chris Shipley
Portland, OR
1-800-684-9844
Super Beast- Guide


The Super Beast Imposes an artificial
unbalanced load on 120/240 volt VAC service at
the meter. This load, or “burden,” shows
instantly whether the service problem is on the
utility or customer side of the meter by showing
a voltage drop on a conductor.
Note: Most utilities use a 5-7 volt drop as an
indication of trouble. Each utility should set its
own standards.
Three-Phase WYE Application


The Super Beast can be used on 120/208 volt,
3-phase WYE systems using the portable meter
base adapter. When using the portable meter
base adapter (HJA-469-500), clipping on to a
permanent mete base will give a better reading.
The Super Beast is not designed for use on
120/240 volt 3-phase Delta, because 208 volts
are present between ground and “high phase” of
a standard 3-phase Delta system.
Connecting the Meter Base Adapter


If you are using the
meter base adaptor here
are the proper steps.
Hook up the neutral clip
to the metal strip through
the hole at the bottom of
the adaptor
Connecting the Meter Base Adapter


Attach the Super Beast
into the base adaptor
with the green clip
located at the bottom of
the Super Beast.
Hook the alligator clips to
the meter socket
Connect to WYE Meter


Red
Black

Connect clips of the
adapter to neutral, Line 1
and Line 2.
Take readings on Line 1
and Line 2. Refer to volt
drop guide for possible
problems.
Note: Black represents
the Left Meter on Beast.
Red represents the Right
Meter on the Beast.
Connect to WYE Meter


Red
Black

Red
Black
L2
Move one clip lead
from either Line 1 or
Line 2 to Line 3
The bottom setup will
L3
now test L1-L3.
Take readings again
by flipping switch to
both Left and Right
Meters on Super
Beast.
Connect to WYE Meter



A final test will determine the
L2-L3 power quality by moving L1
the black cable from Line 1 to
L2
Line 2. ]
The following meter examples
may occur when testing from
line to line.
Note: the best method for
keeping the Meter order is to
keep the black cable on the left
and red cable on the right.
Black Left
Red Right
Applying Load to the Right (Red)
Conductor


With the toggle switch
moved to the right you
are applying 20 Amps to
the right conductor. One
of the following examples
will occur.
As you will see in this
simulated model, the
reading is 111V. At most
utilities the meters will
read 120V +/- 5%.
This
photo shows no problem on
the utility side of the meter. A load
is being applied to the right
conductor and the right meter only
drops 1 volt and the left stays the
same.
Applying load to the Red conductor

Here we have a
partially open Red
conductor. The load is
applied to the Red
Cable side and the
right meter drops but
the left stays the
same.
Applying load to the Red conductor

This picture
represents a fully
open Red
conductor with the
right meter going
blank and the left
meter staying at the
original 111V.
Applying load to the Red conductor

Here we see that
there is a partially
open neutral due to
the decrease in the
right meter and an
increase on the left
meter. Once again if
you toggle to the left,
you will see the same
voltages reversed.
Full Open Neutral

You may move the
toggle switch to either
the left or right and
one meter will rise to
approximately 240 V
and the other will go
blank.