Fault indicator for use with load-break connector
First Claim
1. A removable circuit condition indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said circuit condition indicator comprising:
- a housing for said circuit condition indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath free margin;
said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and
the circuit condition indicator circuitry being electrically connected to said conductive surface to receive operating power therefrom.
5 Assignments
0 Petitions
Accused Products
Abstract
A fault indicator for use in conjunction with a load-break elbow connector includes a resilient mounting collar which wraps around the body of the fault indicator at a location overlying the arc-suppressing non-conductive margin between the electrically conductive sheath and the connecting end of the connector. An electrically conductive layer on the inside surface of the collar capacitively couples the circuitry of the fault indicator to the conductor within the connector to provide operating power to the fault indicator. A ground connection is provided by a second conductive layer on the collar which contacts the grounded connector sheath, or by a spring contact which extends from the fault indicator to the sheath. A voltage indicator is also disclosed using the same collar and capacitive coupling to the monitored conductor.
-
Citations
57 Claims
-
1. A removable circuit condition indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said circuit condition indicator comprising:
-
a housing for said circuit condition indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath free margin; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and the circuit condition indicator circuitry being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A removable circuit condition indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said circuit condition fault indicator comprising:
-
a housing for said circuit condition indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath-free margin; indicator means viewable from the exterior of the housing; circuit means operable from an applied current for operating said indicator means in accordance with a sensed condition in the conductor; said circuit means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and said circuit means being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A removable circuit condition indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate marginal portion at its connecting end, said indicator comprising:
-
a housing for said circuit condition indicator including a collar formed of resilient plastic material extending from said housing and dimensioned to engage said housing of said connector over said marginal portion; indicator means viewable from the exterior to the housing; circuit means for operating said indicator means in accordance with a sensed condition in the conductor; said circuit means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive layer on the inside thereof providing a capacitive coupling to said electrical conductor within said connector; and said circuit means being electrically connected to said layer to receive operating power therefrom. - View Dependent Claims (16, 17, 18, 19)
-
-
20. A removable fault indicator adapted to mount on an elbow connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said fault indicator comprising:
-
a housing for said fault indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath free margin; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and the fault indicator circuitry being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (21, 22, 23, 24, 25, 26)
-
-
27. A removable fault indicator adapted to mount on an elbow connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said fault indicator comprising:
-
a housing for said fault indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath-free margin; an indicator flag having a normal state and a fault-indicating state; actuator means operable from an applied current for positioning said indicator flag to said fault-indicating state upon the occurrence of a fault current in said conductor; said actuator means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and said actuator means being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (28, 29, 30, 31, 32, 33)
-
-
34. A removable fault indicator adapted to mount on an elbow connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said fault indicator comprising:
-
a housing for said fault indicator including a collar formed of resilient plastic material extending from said housing and dimensioned to engage said elbow connector over said marginal portion; an indicator flag having a normal state and a fault-indicating state; actuator means for positioning said indicator flag to said fault-indicating state upon the occurrence of a fault current in said conductor; said actuator means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive layer on the inside thereof providing a capacitive coupling to said electrical conductor within said elbow connector; and said actuator means being electrically connected to said layer to receive operating power therefrom. - View Dependent Claims (35, 36, 37, 38)
-
-
39. A removable voltage indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said voltage indicator comprising:
-
a housing for said voltage indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said arcuate sheath free margin; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and the voltage indicator circuitry being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (40, 41, 42, 43, 44, 45)
-
-
46. A removable voltage indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said voltage indicator comprising:
-
a housing for said voltage indicator including a collar extending from said housing and having a pair of opposed arms extending around and engaging said elbow connector over said sheath-free margin; voltage indicator means viewable from the exterior of the housing; circuit means operable from an applied current for operating said voltage indicator means in accordance with a sensed voltage on the conductor; said circuit means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive inner surface providing a capacitive coupling to said conductor along said arcuate sheath-free margin; and said circuit means being electrically connected to said conductive surface to receive operating power therefrom. - View Dependent Claims (47, 48, 49, 50, 51, 52)
-
-
53. A removable voltage indicator adapted to mount on a connector and including circuitry operable by capacitive coupling to an electrical conductor within the connector, said connector including an electrically grounded outer sheath layer and a sheath-free arc-suppressing arcuate margin at its connecting end, said voltage indicator comprising:
-
a housing for said voltage indicator including a collar formed of resilient plastic material extending from said housing and dimensioned to engage said housing of said connector over said marginal portion; indicator means viewable from the exterior to the housing; circuit means for operating said indicator means in accordance with a sensed voltage in the conductor; said circuit means being contained within said housing and being operable from an applied electrical current; said collar including an electrically conductive layer on the inside thereof providing a capacitive coupling to said electrical conductor within said connector; and said circuit means being electrically connected to said layer to receive operating power therefrom. - View Dependent Claims (54, 55, 56, 57)
-
Specification