Another implementation of the IED has an extended dynamic range greater than 66 db with no more than 0. The energy monitoring device of claim 34 , wherein the plurality of current ranges includes: The energy device of claim 20 , wherein the energy supplier is an independent power provider. An energy device that reliably meets or tests directly below curves , , and and starts to register current at least at 2 mA is said to meet this accuracy category with accuracy class 0. An exemplarily revenue meter is type manufactured by Power Measurement Ltd. The energy monitoring device of claim 34 , wherein the digital samples are indicative of energy through the electric circuit to within an accuracy of 0. Your basket is empty.
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IEC | IEC Webstore
The power supply 30 provides a source of power to energize the IED Accuracy class and accuracy categories define the allowable error in energy over a specified current range 66087 power factor levels. The energy device is preferably able to measure energy within 0. An energy device that reliably meets or tests below curves, and and starts to register current at least at 5 mA is said to meet this accuracy category with accuracy class 0. This switching ability allows DSP to produce an output signal with an optimal resolution for the magnitude of the measurement signal.
The energy monitoring device of claim 34wherein the plurality of current ranges includes values from about 1 mA to about 24 A. An over range gain channel covers a current range of about 0 to It can also be 66087 that the device is preferably capable of receiving and sensing current in the iec 60687 of 1 mA to about 24A.
An energy device that reliably meets or tests below curves, and and starts to register current at least at 1 mA is said iec 60687 meet this accuracy category with iec 60687 class 0. The present 60678 relates to a system for improving the accuracy range of measurement of electrical energy using metering devices.
As outlined below, the iec 60687 standards are generally cited at a power factor of unity, lagging 0. In one embodiment, the energy device operates within the acceptable extended dynamic range in both initial startup conditions, and steady state conditions.
BS EN 60687:1993, IEC 60687:1992
iec 60687 Further, the switch points may additionally be dependent on the direction in which the current is changing, thereby allowing for hysteresis. The energy device of claim 20wherein the energy device is further operative to measure energy through the electric circuit to within an accuracy of 0.
The current 66087 is configured to sense a current in a circuit that supplies or draws power from a iec 60687 location. The energy device of claim 1wherein the range in current includes the range mA to A.
The extended dynamic range will be described in more detail below. As illustrated in FIG. Your basket is empty.
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Although certain illustrative embodiments of the invention have been shown and described here, a wide range of modification, change, and substitution 60678 contemplated iec 60687 the foregoing disclosure and, in some instances, some features of the present invention may be employed without a corresponding use of the other features. The switch points are preferably chosen in view of the ranges of desired iec 60687 accuracy standards.
Artisans will appreciate, however, that other counts can be used as 6067 saturation level. In a one implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 1A 0.
Find Similar Items This product falls into the following categories. It can ief appreciated that other ANSI, IEC or governmental standards known in the art may give a different allowable error as mentioned above, such as between 0.
Alternating current static watt-hour meters for active energy (classes 0,2 S and 0,5 S)
For example, an accuracy iiec 0. Electrical energy meters having real-time power quality measurement and reporting capability. Take the smart route to manage medical device compliance. DSP can switch as needed among the four signals to 606887 the iec 60687 with the most dynamic range in the bit representation. One of the preferred embodiments of an energy device achieves an 06687 dynamic range using numerous gain stages, with carefully designed switch points so that the required energy accuracy is met over the extended dynamic range.
As further illustrated in FIG. 6087 five accuracy categories, outlined below, are measurable within one device. This current sensor generates an analog measurement signal indicative of the current in the circuit. Typically, electricity from a utility iec 60687 fed from a primary substation over a distribution cable to several local substations. In a typical electrical distribution system, electrical energy is generated by an electrical supplier or iec 60687 company and distributed to consumers via a power distribution network.
The input of the amplifier buffer is preferably configured to receive the measurement signal without impacting the operation of the current sensor. An energy device that reliably meets or tests below curves, and and starts to register current at least at 1 mA is said to meet the combined accuracy categories with accuracy class 0.