Claims:1. A system for self-diagnosis implementable in a relay, said system comprising:
an analogue-to-digital converter (ADC) (102) configured to receive an input voltage and convert the received input voltage to a digital signal; and
a microcontroller (101) operatively coupled with a memory, said memory storing instructions executable by the microcontroller (101) to:
sample a predetermined number of times, the converted digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval; and
determine one or more electrical parameters from each of the sampled signals,
wherein the microcontroller is configured to determine, for each of the sampled signals, a deviation of any or all of determined one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and
wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued, and a log of the deviation is generated; and
store, in a memory device (105) operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
2. The system as claimed in claim 1, wherein the microcontroller is configured to, on detection of deviation for any of the one or more electrical parameters, activate corresponding protection to counter the deviation.
3. The system as claimed in claim 1, wherein the system comprises a learning engine operatively coupled with the memory device, the learning engine configured to determine a trend of deviations of the one or more electrical parameters based on a historical data of deviations of the one or more electrical parameters.
4. The system as claimed in claim 3, wherein based on the determined trend, a deviation for any or all of the one or more electrical parameters is predicted.
5. The system as claimed in claim 1, wherein the one or more electrical parameters are selected from a group comprising current, voltage, and frequency.
6. The system as claimed in claim 5, wherein, based on the deviations, the error alert issued are selected from a group comprising overcurrent, overvoltage, undervoltage and over frequency.
7. The system as claimed in claim 1, wherein the memory device is a cloud storage.
8. A method for self-diagnosis implementable in a relay, said method comprising the steps of:
sampling (301), at a microcontroller device (101), a predetermined number of times, a digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval, the digital signal obtained as output from an analogue-to-digital converter (ADC) (102) configured to receive an input voltage; and
determining (302), at the microcontroller device (101), one or more electrical parameters from each of the sampled signals,
wherein the microcontroller (101) is configured to determine, for each of the sampled signals, a deviation of any or all of determined (303) one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and
wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued (304), and a log of the deviation is generated; and
storing (305), by the microcontroller device (101), in a memory device (105) operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.

, Description:TECHNICAL FIELD
[0001] The present disclosure relates generally to power distribution system for controlling and protecting the distribution of electric power, and more specifically, relates to a system and method for monitoring of critical relay components in a power distribution system.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed disclosure, or that any publication specifically or implicitly referenced is prior art.
[0003] Power substation equipment must be very reliable and show a high availability. It must be ensured that circuit breakers always operate in case of the need for interruption or reconnection of power connections. High reliability and availability may be important as well for distribution transformers and power transformers in substations.
[0004] Feeder protection relay provides protection to feeders from the fault so that the power grid continues supply the energy. The feeder injects the electrical energy from the substation to the load end. So, it is essential to protect the feeder from the various type of fault. The main requirement of the feeder protection are as follows: 1. During the short circuit, the circuit breaker nearest to the fault should open and all other circuit breakers remain in a closed position. 2. If the breaker nearest to the fault fails to open then, backup protection should be provided by the adjacent circuit breaker. 3. The relay operating time should be small to maintain the system stability without unnecessary tripping of a circuit. Some monitoring devices are known to monitor, based on operational diagnostic data during operation. These monitoring devices may only act as non-intelligent data loggers.
[0005] Therefore, there is a need for a means to provide a simple and time efficient solution to monitor the relay components effectively.

OBJECTS OF THE DISCLOSURE
[0006] An object of the present disclosure relates generally to power distribution system for controlling and protecting the distribution of electric power, and more specifically, relates to a system and method for monitoring of critical relay components in a power distribution system.
[0007] Another object of the present disclosure is to provide system that can perform self-diagnostic test to verify correct operation of hardware peripherals and microprocessor based embedded components.
[0008] Another object of the present disclosure is to provide a system designed with self-diagnosis of the hardware and firmware of the protection unit to ensure healthiness and cloud-based storage ensures easy access from anywhere/anytime.
[0009] Another object of the present disclosure is to provide a system in which the data samples gathered after iterations can be used to analyse and predict the pattern (if any) that can help prevent failure of any module in the current cycle thereby preventing any delay.
[0010] Yet another object of the present disclosure is to provide a cost-effective system that can provide health information and indicate an alarm of dangerous conditions to schedule preventive maintenance.

SUMMARY
[0011] The present disclosure relates generally to power distribution system for controlling and protecting the distribution of electric power, and more specifically, relates to a system and method for monitoring of critical relay components in a power distribution system.
[0012] In an aspect, the present disclosure relates to a system for self-diagnosis implementable in a relay, said system comprising: an analogue-to-digital converter (ADC) configured to receive an input voltage and convert the received input voltage to a digital signal; and a microcontroller operatively coupled with a memory, said memory storing instructions executable by the microcontroller to: sample a predetermined number of times, the converted digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval; and determine one or more electrical parameters from each of the sampled signals, wherein the microcontroller is configured to determine, for each of the sampled signals, a deviation of any or all of determined one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued, and a log of the deviation is generated; and store, in a memory device operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
[0013] In an embodiment, the microcontroller is configured to, on detection of deviation for any of the one or more electrical parameters, activate corresponding protection to counter the deviation.
[0014] In another embodiment, the system comprises a learning engine operatively coupled with the memory device, the learning engine configured to determine a trend of deviations of the one or more electrical parameters based on a historical data of deviations of the one or more electrical parameters.
[0015] In another embodiment, based on the determined trend, a deviation for any or all of the one or more electrical parameters is predicted.
[0016] In another embodiment, one or more electrical parameters are selected from a group comprising current, voltage, and frequency.
[0017] In another embodiment, the memory device is a cloud storage.
[0018] In an aspect, the present disclosure relates to a method for self-diagnosis implementable in a relay, said method comprising the steps of: sampling, a predetermined number of times, a digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval, the digital signal obtained as output from an analogue-to-digital converter (ADC) configured to receive an input voltage; and determining, at the microcontroller device, one or more electrical parameters from each of the sampled signals, wherein the microcontroller is configured to determine, for each of the sampled signals, a deviation of any or all of determined one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued, and a log of the deviation is generated; and storing, by the microcontroller device, in a memory device operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
[0019] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following drawings form part of the present specification and are included to further illustrate aspects of the present disclosure. The disclosure may be better understood by reference to the drawings in combination with the detailed description of the specific embodiments presented herein.
[0021] FIG. 1 illustrates exemplary system provided with a relay, according to an embodiment of the present disclosure.
[0022] FIGs. 2A-2D illustrate exemplary process for self-diagnosis of the interfaces, according to an embodiment of the present disclosure.
[0023] FIG. 3 illustrate exemplary process for self-diagnosis implementable in a relay, according to an embodiment of the present disclosure.

DETAILED DESCRIPTION
[0024] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0025] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0026] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0027] The use of any and all examples, or exemplary language (e.g., “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the disclosure and does not pose a limitation on the scope of the disclosure otherwise claimed. No language in the specification should be construed as indicating any non – claimed element essential to the practice of the disclosure.
[0028] The present disclosure relates generally to power distribution system for controlling and protecting the distribution of electric power, and more specifically, relates to a system and method for monitoring of critical relay components in a power distribution system.
[0029] In an aspect, the present disclosure relates to a system for self-diagnosis implementable in a relay, said system comprising: an analogue-to-digital converter (ADC) configured to receive an input voltage and convert the received input voltage to a digital signal; and a microcontroller operatively coupled with a memory, said memory storing instructions executable by the microcontroller to: sample a predetermined number of times, the converted digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval; and determine one or more electrical parameters from each of the sampled signals, wherein the microcontroller is configured to determine, for each of the sampled signals, a deviation of any or all of determined one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued, and a log of the deviation is generated; and store, in a memory device operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
[0030] In an embodiment, the microcontroller is configured to, on detection of deviation for any of the one or more electrical parameters, activate corresponding protection to counter the deviation.
[0031] In another embodiment, the system comprises a learning engine operatively coupled with the memory device, the learning engine configured to determine a trend of deviations of the one or more electrical parameters based on a historical data of deviations of the one or more electrical parameters.
[0032] In another embodiment, based on the determined trend, a deviation for any or all of the one or more electrical parameters is predicted.
[0033] In another embodiment, one or more electrical parameters are selected from a group comprising current, voltage, and frequency.
[0034] In another embodiment, the memory device is a cloud storage.
[0035] In an aspect, the present disclosure relates to a method for self-diagnosis implementable in a relay, said method comprising the steps of: sampling, a predetermined number of times, a digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval, the digital signal obtained as output from an analogue-to-digital converter (ADC) configured to receive an input voltage; and determining, at the microcontroller device, one or more electrical parameters from each of the sampled signals, wherein the microcontroller is configured to determine, for each of the sampled signals, a deviation of any or all of determined one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued, and a log of the deviation is generated; and storing, by the microcontroller device, in a memory device operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
[0036] FIG. 1 illustrates exemplary system 100 for self-diagnosis implementable in a relay, according to an embodiment of the present disclosure.
[0037] Referring to FIG. 1, the system 100 includes a microprocessor 100, based relays to do self-diagnosis of its hardware peripherals and embedded system. The protective relay can receive inputs from power lines, which have been reduced by current transformers and voltage transformers (not shown) to practical levels for use by the protective relay and transmits an output to circuit breakers (not shown) if a fault is detected. However, the protective relay is also configured to perform automatic and continuous self- diagnosis of the entire protective relay and testing of each component within the protective relay system. The protective relay of the present disclosure also possesses the capability to automatically recalibrate certain components when they are determined to be malfunctioning.
[0038] In an embodiment, the system comprises the relay may be, for example, a microprocessor-controlled, multi-function relay, such as a three-phase relay having multiple voltage and/or current inputs 109. The system can be configured as either a plug-in module for the trip unit, or as an accessory that is mounted on the breaker panel (not shown) proximate to and in communication with the trip unit. As discussed in more detail below, the relay may be in communication with circuit breakers, companion relays, control equipment, and other circuit elements. For example, the relay may be connected to a network switch/hub that supports having the relay communicate with other relays in implementing an electrical protection system.
[0039] In an embodiment, the three - phase voltage/current input 109 is fed from feeders to the analogue section of the system. The protective relay comprises a microcontroller 101. The microcontrollers can convert data to digital form for processing via analogue to digital converter module (ADC) 102. Based on data obtained and protection algorithms applied different types of protection is provided namely overcurrent, over voltage, under voltage, over frequency, etc. The electrical data obtained is basically converted to numerical data which undergoes mathematical and logical analysis for correct tripping condition by relays. However, it should be understood that other means of transmitting information are also contemplated. The microcontroller is also connected to a local memory for storing reference data and instructions.
[0040] In an embodiment, the system includes clock circuit 103 such as real time clock (RTC) module coupled to microcontroller 101. The clock circuit 103 generates signals representing temporal information, and preferably generates signals representing a time and a date. Clock circuit 103 may include a resonant crystal oscillator and the timing generation circuitry necessary to convert the pulses from the oscillator into a representation of a real-time clock. The term "real time clock" in the context of this disclosure means a clock circuit that maintains time-of-day and date parameters.
[0041] The microcontroller can be coupled to the clock circuit 103 to receive the temporal information. The microcontroller 101 associates a fault event with the temporal information and transmits the associated signals. The microcontroller 101 then generates output signals representing the fault event and the temporal information associated with that fault event. In this manner, the microcontroller combines the fault event with the real-time at which the fault event occurred.
[0042] In another embodiment, the memory 104 can be coupled to the microcontroller. The memory can include flash memory. The memory 104 receives and stores the output signals from the microcontroller. These output signals indicate the given fault event and the temporal information associated with the event. For saving general and protection settings, recording fault and event logs there is use of external flash memory104. Events recorder provides information about the time the status of any monitored module that changes and the value to which it has been changed.
[0043] A power supply 110 can be coupled to the microcontroller 101 and to the memory 104. The power supply 110 can be configured to receive power from trip circuit supervision (TCS) relay for low and medium voltage applications. In this manner, the power supply 110 receives power from the current transformers within the circuit breaker. The power supply can receive power from a back-up battery when the circuit breaker is open, so that the microcontroller and the memory can receive power from the power supply 110 regardless of the status of the circuit breaker.
[0044] In an embodiment, graphical user interface (106-108) such as display, and keypad can be coupled to microcontroller. Specifically, display can allow the user to view data stored in memory and keypad can allows the user to input data into microcontroller to set system parameters or to view the contents of the logs and the maximum parameter logs. The system can be configured for assessing the condition of system interfaces, referred to as health monitoring, and performing fault diagnosis. The relays are operated in the form of digital outputs (Dos) 108. The data can be communicated with external world via display interfaced with keys 106 and LEDs 107 indicating fault conditions. As a result of the health monitoring and fault diagnosis functions, the system may also schedule predictive maintenance or service as required and adjust system processes to maintain operations until maintenance or service may be performed.
[0045] In an implementation, the ADC 102 can receive an input voltage and convert the received input voltage to a digital signal. The microcontroller (101) can sample a predetermined number of times, the converted digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval; and determine the electrical parameters from each of the sampled signals. The microcontroller can determine deviation of the determined electrical parameters based on comparison of the determined electrical parameters with corresponding predetermined values for the parameters. An alarm is triggered when a deviation is determined for the electrical parameters, and a log of the deviation is generated. The log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals can be stored in the cloud.
[0046] In another embodiment, the system can enable microprocessor, based relays to do self-diagnosis of its hardware peripherals and embedded system. The hardware peripherals and embedded system includes signal conditioning section (analogue to digital converter interface) 102, power supply monitoring 110, real time clock 103 and flash general and protection settings 104. It can also give a failure indication to the user of that interface. The recorded diagnosis history is transferred to cloud 105 via internal Wi-Fi chip. This data can be used for trend analysis. The periodic measurements of system parameters and status collected from modules in the past can be used as a reference for predictive behaviour and taking preventive measures to minimize failure rates.
[0047] In an embodiment, condition assessment refers to measuring characteristics, performance, outputs, or other indicators of the operation of a system interfaces to determine its condition. Fault diagnosis refers to the ability to identify an interface fault from the indicators of operation, other component characteristics, or from system operations. Automated fault diagnosis may complement or relieve an operator from fault classification and troubleshooting tasks, including diagnostic error codes and interactive diagnostic screens.
[0048] FIGs. 2A-2D illustrate exemplary process for self-diagnosis of the interfaces, according to an embodiment of the present disclosure.
[0049] Returning to FIGs. 2A-2D, the system designed has self-diagnostic feature which continuously monitors the signal conditioning section (analogue to digital converter interface), power supply monitoring, real time clock and flash general and protection settings, and there is an indication if any of the module(s) fail. Any data model along with sampling and filtering can be used to collect vast number of samples over a period of cycles and check any repeated pattern for prevention from failure of any peripheral/module of the system.
[0050] In an embodiment, the three-phase voltage/current input is fed from feeders to the analogue section of the system. Data is converted to digital form for processing via Microcontrollers with the help of analogue to digital converter module (ADC). Based on data obtained and protection algorithms applied different types of protection is provided namely overcurrent, over voltage, under voltage, over frequency, etc. The electrical data obtained is basically converted to numerical data which undergoes mathematical and logical analysis for correct tripping condition by relays. The relays are operated in the form of digital outputs (Dos). The data can be communicated with external world via display interfaced with keys and LEDs indicating fault conditions.
[0051] In an embodiment, the primary supply to the system is monitored continuously ensuring healthiness of the system. For time synchronization there is real time clock (RTC) module. For saving general and protection settings, recording fault and event logs there is use of external flash memory. The data stored provides log of all the previous errors (if any) in the modules. The data is then sent externally and stored in cloud via the internet which can be easily accessed. Events recorder provides information about the time the status of any monitored module that changes and the value to which it has been changed.
[0052] The following interfaces/peripherals are checked as a part of the self-diagnostic check: signal conditioning section (analogue to digital converter interface), power supply monitoring, real time clock and flash general and protection settings. It provides information about number of operations, frequency of use, failure rate, etc. All this information tells about the quality and healthiness of the system. The data collection operates to acquire time histories of selected variables relating to the operation of a device being monitored. A time history refers to a collection of values for a variable or group of variables over time.
[0053] In an implementation, the diagnosis of signal conditioning section can be performed. The method includes initializing the relay by setting 201 counters for ADC count threshold corresponding to DC offset value, setting 202 counters for ADC channels corresponding to R, Y and B phase input. Read 203 the ADC result buffer register for all channels and determine 204 if the ADC count is within the set threshold. The ADC diagnosis test is passed 205, if the ADC count is within the set threshold else a flag is raised 207 to indicate error. Similarly, the supply monitoring interface can be configured to perform self-diagnostic check. The process includes setting 208 lower limit up to which power supply monitored is considered healthy. Read 209 voltage of supply to be monitored and determine 210 if the voltage monitored is within the threshold. The monitoring interface test can be passed 211 if the voltage monitored is within the threshold else a flag is raised 213 to indicate error.
[0054] In another implementation, the RTC interface is checked for diagnosis, includes poll 214 hardware based RTC, create software RTC 215, compare soft RTC with hard RTC 216 and determine 217 if the difference is greater than one minute. The RTC interface test is passed 218, if the difference is greater than one minute else a flag is raised 220 to indicate error. Similarly, flash interface can be configured 221 to perform diagnosis. The flash interface can be configured to perform read, write, and erase check 222 and determine if the read, write, and erase check is passed 223. The process can further check 224 flash general setting and protection settings. The flash interface test can be passed 225 if flash interface performs the required function else a flag is raised 230 to indicate error.
[0055] All the required interfaces 227 are checked based on logic developed to ensure healthiness of system. If any of the interfaces is not properly working an alarm is raised 229 indicating error in the system. This self-diagnostic check is continuously performed 228 using scheduler timer. All the logs recorded can then be stored to cloud.
[0056] FIG. 3 illustrate exemplary process for self-diagnosis implementable in a relay, according to an embodiment of the present disclosure.
[0057] In an embodiment, the method comprising the steps of: sampling (301), at a microcontroller device (101), a predetermined number of times, a digital signal in a predefined time interval to generate a predetermined number of sampled signals in the predefined time interval, the digital signal obtained as output from an analogue-to-digital converter (ADC) (102) configured to receive an input voltage; and determining (302), at the microcontroller device (101), one or more electrical parameters from each of the sampled signals.
[0058] In another embodiment, the microcontroller (101) is configured to determine, for each of the sampled signals, a deviation of any or all of determined (303) one or more electrical parameters based on comparison of the any or all of the determined one or more electrical parameters with corresponding desirable ranges for the one or more parameters, and wherein, when a deviation is determined for any or all of the one or more electrical parameters, an error alert is issued (304), and a log of the deviation is generated; and storing (305), by the microcontroller device (101), in a memory device (105) operatively coupled with the system, the log of the deviation for any or all of the one or more electrical parameters for each of the sampled signals.
[0059] In addition to the elements of the function controller described above, the data collection includes one or more buffers for collecting the values of the selected variables. The data collection also includes programs and circuitry for specifying the device signals and variables to be recorded, setting the sampling period for data recording, setting the trigger mode for data recording (e.g., on event, on start of move, on end of move, when above threshold, when below threshold, with delay), setting the number of samples to be recorded, and setting the mechanism to stop data recording (e.g., when specified, on event, on end of move, on error, with delay).
[0060] The present disclosure, in various embodiments, includes components, methods, processes, systems and/or apparatus substantially as depicted and described herein, including various embodiments, sub-combinations, and subsets thereof. Those of skill in the art will understand how to make and use the present disclosure after understanding the present disclosure. The present disclosure, in various embodiments, includes providing devices and processes in the absence of items not depicted and/or described herein or in various embodiments hereof, including in the absence of such items as may have been used in previous devices or processes, e.g. for improving performance, achieving ease and\or reducing cost of implementation.
[0061] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C … and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc. The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the appended claims.
[0062] While various embodiments of the present disclosure have been illustrated and described herein, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the disclosure, as described in the claims.

ADVANTAGES OF THE DISCLOSURE
[0063] The present disclosure provides a system that can provide maximum availability of protection and minimize risk of relay mis-operation.
[0064] The present disclosure provides a system that can perform self-diagnostic test to verify correct operation of critical relay components and all the diagnostic is performed internally within the system.
[0065] The present disclosure provides a system designed with self-diagnosis of the hardware and firmware of the protection unit to ensure healthiness and system performance can be improved with the help of predictive data modelling.
[0066] The present disclosure provides a cost-effective system that can provide health information and indicate an alarm of dangerous conditions to schedule preventive maintenance.
[0067] The present disclosure provides a system in which the data samples gathered after iterations can be used to analyse and predict the pattern (if any) that can help prevent failure of any module in the current cycle only thereby preventing any delay.