How ZERO GROUND HFES® Operates
- Directs Fault
Currents Away From Hazardous Locations to be safely dealt with.
- Significantly
Reduces Unplanned Downtime*
- Reduces Maintenance Costs Due to Issues
Associated with ASD’s / Motor Installations
- Reduces High
Frequency Ground Currents to Zero
- Extends Motor
Life
*Unplanned Downtime
– Cost of Labor, Materials, Lost Equipment (Repair or Replacement)
and Lost Product
ZERO GROUND
HFES provides unsurpassed performance in reducing EMI/RFI
by PWM or high frequency power supplies. HFES
has been engineered and designed as a complete wiring system to be installed
between a source and an Adjustable Speed Drive controller and an electric
motor or in any wiring scheme where there is the possibility of high
frequency voltages tending to stray. HFES uses no filters in
reducing ground currents to zero.
In replacing a standard
wiring system for a VFD cell in one of our Beta Sites, HFES reduced
1,538 milliamps to Zero. We define Zero, as five places to the right
of the decimal point (please see graphs below):

("ELECTRICAL NOISE" measured before ZERO
GROUND HFES®; note: before graph vertical divisions are 500
mA)

("ELECTRICAL NOISE" measured after ZERO
GROUND HFES®; note: "after" graph
vertical divisions are MAGNIFIED 10x to 50 mA)
When HFES is installed correctly, this design addresses the issues
related with large switching power supplies in BJT, IGCT and
IGBT technology(s), in conjunction with motors, motor cables, power
supply cables, as well as PE ground grids, and rapid rise pulse phenomenon.
Our patented system delivers the following:
1) Contains and
Mitigates Stray Capacitance
2) Contains and
Mitigates Capacitively Coupled Energy
3) Contains and
Mitigates Inductively Coupled Energy
4) Contains and
Mitigates Common Mode Voltage
5) Minimize Corona
Inception Voltage (CIV) in motor cable leads
6) Eliminate motor
frame voltage to ground
7) Minimizes all
crosstalk between adjacent cables
8) Eliminates stray
voltage (CMV) and thereby inhibiting stray currents (CMC) from flowing in PE equipment
grounding circuit(s)
9) A possibility
exists that the reduced impedance of our ZERO GROUND system could reduce
the sum effect of reflected waves.