Multi-featured power meter with feature key
AssigneePower Measurement Ltd.
InventorsRudolf Schnorr von Carolsfeld, Peter C. Cowan, Geoffrey T. Hyatt, Rene T. Jonker, Simon H. Lightbody
Life of this patent
Estimating the term…
Abstract
An intelligent electronic device (“IED”) includes at least one function module that performs a specified function or feature. The function module operates to perform a power management function in conjunction with IED. The IED operates with a one key code corresponding to the power management function. The key code operates to enable or disable the power management function.
Claims49
An intelligent electronic device (“IED”), the device comprising:
- a base;
- a cover connected with the base, wherein the base and the cover form an enclosure, the enclosure including an inside and an outside;
- an analog circuitry of the IED positioned in the inside of the enclosure;
- a hardware function module mounted to the enclosure, wherein the hardware function module performs a power management function in conjunction with the IED;
- a key code corresponding to the hardware function module, wherein the key code enables the hardware function module to operate;
- and a key module with the key code, wherein the key module is sandwiched between the enclosure and the hardware function module.
In an intelligent electronic device (“IED”) operative to perform a first power management function and a second power management function, the first power management function being disabled and the second power management function being enabled, the device comprising:
- a base;
- a cover connected with the base, wherein the base and the cover form an enclosure, the enclosure including an inside and an outside;
- an analog circuitry of the IED positioned in the inside of the enclosure;
- a key code to enable the second power management function;
- and a key module to maintain the key code, wherein the key code is maintained outside of the enclosure of the IED, the key module sandwiched between the enclosure and a power supply.
An intelligent electronic device (“IED”) operative to perform at least one power management function, the power management function module being initially disabled, the device comprising:
- a base;
- a cover connected with the base, wherein the base and the cover form an enclosure, the enclosure including an inside and an outside;
- an analog circuitry of the IED positioned in the inside of the enclosure;
- a key module to enable the power management function;
- and an external hardware function module, wherein the key module is sandwiched between the enclosure and the external hardware function module.
Dependencies are inferred from the claim text.