Revenue meter with power quality features

A revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

• bayonet terminals disposed on said meter mateable with matching jaws of a detachable meter mounting device;
• a seal connected between said meter and said detachable meter mounting device, said seal operative to prevent removal of said meter and indicate tampering with said meter;
• a sensor coupled with said electric circuit and operative to sense a voltage in said electric circuit and generate an analog signal indicative of said voltage;
• an analog to digital converter coupled with said sensor and operative to convert said analog signal to one or more digital samples;
• and
• a detector coupled with said analog to digital converter and operative to compare each of said digital samples to a threshold and indicate a transient event when said digital sample exceeds said threshold.

A revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

• bayonet terminals disposed on said meter mateable with matching jaws of a detachable meter mounting device;
• a seal connected between said meter and said detachable meter mounting device, said seal operative to prevent removal of said meter and indicate tampering with said meter;
• a sensor coupled with said electric circuit and operative to sense the voltage in said electric circuit and generate an analog signal indicative of said voltage, said voltage having a wave shape;
• an analog to digital converter coupled with said sensor and operative to convert said analog signal to one or more digital samples;
• a memory coupled with said analog to digital converter and operative to receive and store at least 2 cycles worth of said one or more digital samples;
• and
• a detector coupled with said memory and operative to compare a first of said digital samples to a second of said digital samples and calculate a difference, said second digital sample being non-consecutive with said first digital sample, said detector further operative to compare said difference to a threshold and indicate a deviation in said wave shape when said difference exceeds said threshold.

A switchboard revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

• a draw-out chassis coupled with said meter and operative to fit within a switchboard enclosure;
• terminals disposed on said chassis for engaging matching terminals within said enclosure;
• a display;
• a meter cover operative to enclose said meter and said display within said enclosure;
• a seal connected with said meter cover and operative to prevent removal of said meter cover and indicate tampering with said meter;
• one or more sensors coupled with said electric circuit and operative to sense one or more power parameters in said electric circuit and generate one or more analog signals indicative of said power parameters;
• at least one analog to digital converter coupled with said sensors and operative to convert said analog signals to one or more digital samples;
• and
• a detector coupled with said analog to digital converter and operative to compare each of said digital samples to a threshold and indicate a power quality event when said digital sample deviates from said threshold.

A switchboard revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

• a draw-out chassis coupled with said meter and operative to fit within a switchboard enclosure;
• terminals disposed on said chassis for engaging matching terminals within said enclosure;
• a display;
• a meter cover operative to enclose said meter and said display within said enclosure;
• a seal connected with said meter cover and operative to prevent removal of said meter cover and indicate tampering with said meter;
• a sensor coupled with said electric circuit and operative to sense a voltage in said electric circuit and generate an analog signal indicative of said voltage;
• an analog to digital converter coupled with said sensor and operative to convert said analog signal to one or more digital samples;
• and
• a detector coupled with said analog to digital converter and operative to compare each of said digital samples to a threshold and indicate a transient event when said digital sample exceeds said threshold.

A switchboard revenue meter for measuring the delivery of electrical energy from an energy supplier to a consumer through an electric circuit, said meter comprising:

• a draw-out chassis coupled with said meter and operative to fit within a switchboard enclosure;
• terminals disposed on said chassis for engaging matching terminals within said enclosure;
• a display;
• a meter cover operative to enclose said meter and said display within said enclosure;
• a seal connected with said meter cover and operative to prevent removal of said meter cover and indicate tampering with said meter;
• a sensor coupled with said electric circuit and operative to sense the voltage in said electric circuit and generate an analog signal indicative of said voltage, said voltage having a wave shape;
• an analog to digital converter coupled with said sensor and operative to convert said analog signal to one or more digital samples;
• a memory coupled with said analog to digital converter and operative to receive and store at least 2 cycles worth of said one or more digital samples;
• and
• a detector coupled with said memory and operative to compare a first of said digital samples to a second of said digital samples and calculate a difference, said second digital sample being non-consecutive with said first digital sample, said detector further operative to compare said difference to a threshold and indicate a deviation in said wave shape when said difference exceeds said threshold.