US 9,810,720 B2
System and method for monitoring a power line without connecting to ground
Hershel Roberson, Johnson City, TX (US)
Assigned to CLEAVELAND/PRICE INC., Trafford, PA (US)
Filed by Hershel Roberson, Johnson City, TX (US)
Filed on May 16, 2016, as Appl. No. 15/156,322.
Claims priority of provisional application 62/162,644, filed on May 15, 2015.
Prior Publication US 2017/0023619 A1, Jan. 26, 2017
Int. Cl. G01R 1/20 (2006.01); G01R 15/18 (2006.01); G01R 31/40 (2014.01)
CPC G01R 15/181 (2013.01) [G01R 31/40 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An improved sensory assembly comprising
a first end electrically connectable to a first phase of a power line;
a second end electrically connectable to a second phase of said power line;
a voltage sensor capable of measuring a voltage between said first phase and said second phase;
a current sensor magnetically coupled to said power line;
an analog to digital converter that
receives a first signal from said voltage sensor, said first signal proportional to said voltage;
receives a second signal from said current sensor, said second signal proportional to a current on said first phase of said power line;
samples said first signal to produce a digital voltage signal, said digital voltage signal representative of said voltage; and
samples said second signal to produce a digital current signal representing said current on said first phase; and
a sensory transceiver electrically connected to said analog to digital converter that wirelessly receives timing device, and transmits wirelessly said digital voltage signal and said digital current signal, said digital voltage signal and said digital current signal comprising timing data related to said timing information.