HOW TO RESOLVE WARNINGS

Why is POWEReasy showing a warning?

Your site has observed a high current beyond the capacity of the electrical system. These high currents can lead to overheating and fires.

When do you need to fix this and why?

Overload condition is not safe for your electrical system. It could lead to overheating that would eventually lead to exposed connection and fires. It critically hampers the reliability of the electrical networks. Overload conditions occurring from increased current from devices could be early indicators of degradation or erroneous operations of electrical appliances. Early diagnosis and fixing of these warnings can help improve reliability of the site and life of equipment.

What should you do next?

• You need to identify devices that are overloading the facility and switch them OFF
• Check to see if there is any equipment that is not critical at the moment such as geysers, air conditioners, heaters, etc. Switch OFF the device that has low priority and check to see that the warning for overload is no longer showing on the screen.
• If the overload condition is appearing when only a single device is ON there could be a faulty circuit or device. You need to call your electrician to have this serviced.

Tips for the Electrician

• Within our dashboard you can refer to the ‘analytics’ to identify the phase and time when the problem has occurred.
• The next step would be to switch on the loads one by one and test that there is no individual load that leads to the short circuit or overload condition.
• If a single load is not identified and it is observed that the system is still warning for overload conditions then upgrading the power rating of the POWEReasy device, incomer and wiring must be done.

Why is POWEReasy showing a warning?

Your site has observed an unbalanced current in the electrical system. IEEE1159 recommends unbalanced currents to be measured within a maximum value of 30%. POWEReasy measures this over a 24 hour period and determines the average unbalance across the entire electrical system connected to the device.

When do you need to fix this and why?

Unbalanced currents are not safe for your electrical system. It leads to excessive current flow in the neutral conductors and overburdening one phase over another. This has an impact on the efficiency of the entire electrical system. The increased current in neutral can further lead to overheating of the neutral conductor and eventually a neutral fault condition. Having the unbalanced currents fixed at your next weekly shutdown is advisable.

What should you do next?

• POWEReasy already advises you on which phase has the unbalanced load. You need to identify and how much current needs to be shifted from 1 phase to another. You can call your local electrician to fix this problem.

Tips for the Electrician

• The POWEReasy device on its display will indicate the current that needs to be shifted from 1 phase to another.
• For more advanced users, you can use the POWEReasy dashboard. Refer to the Live > device analytics section to identify the load current patterns and make a decision on how much load you want to shift from 1 phase to another

Why is POWEReasy showing a warning?

Your site has observed a high voltage event. IS12360 recommends 253V to be the upper limit for acceptable voltages in India. These overvoltage conditions can lead to damaging expensive equipment and over time stress circuits and devices to become fire risks.

When do you need to fix this and why?

This condition is coming from your supply. Is it advised that you do not use expensive and critical equipment directly from this voltage supply. Typically as time

What should you do next?

• You can use your electrical supply but you want to use it with devices that have wide voltage operating range. Many devices use universal supply range from 90-280V. You can look at device ratings to identify these loads.
• For portable loads you can shift loads from the phase that is showing the warning to another phase.
• If you have a backup supply such as a DG, UPS or inverter use that
• You can check every 30 min if the voltage is in acceptable range and warning has gone

Tips for the Electrician

• If the user is seeing the problem repeatedly, a suitable voltage regulation device can be recommended. You can opt for the POWEReasy Voltage optimizer that comes with an 18% energy savings validation by CPRI.

Why is POWEReasy showing a warning?

Your site has observed a low voltage event. IS360 recommends 184V to be the low limit for acceptable voltages in India. These undervoltage conditions can lead to damaging expensive equipment and over time stress circuits and devices to become fire risks.

When do you need to fix this and why?

This condition is coming from your supply. Is it advised that you do not use expensive and critical equipment directly from this voltage supply. Typically as time

What should you do next?

• You can use your electrical supply but you want to use it with devices that have wide voltage operating range. Many devices use universal supply range from 90-280V. You can look at device ratings to identify these loads.
• For portable loads you can shift loads from the phase that is showing the warning to another phase.
• If you have a backup supply such as a DG, UPS or inverter use that
• You can check every 30 min if the voltage is in acceptable range and warning has gone

Tips for the Electrician

• If the user is seeing the problem repeatedly, a suitable voltage regulation device can be recommended. You can opt for the POWEReasy Voltage optimizer that comes with an 18% energy savings validation by CPRI.

Why is POWEReasy showing a warning?

Your location has minor arc associated with possible loose connection and exposed wires. These warnings are an early diagnostic tool for issue that can lead to major arcing related faults and fires risks.

When do you need to fix this and why?

The loose connection issue is often time mixed with equipment start up currents. It is intended that if these warnings are appearing repeatedly and during times of when motors are not operational it must be resolved at the first daily shutdown. If the warnings are appearing at startup of specific loads or during specific times of the day these can be acted on during the planned weekly shutdown. Early diagnosis and fixing of these warnings can help improve reliability of the site and reduce arcing related faults.

What should you do next?

• Call an electrician to help identify and diagnose if the fault is critical or not.

Tips for the Electrician

• Within our dashboard you can refer to the Alerts>Issues section to identify the phase on which the problem has occurred. You can also see if this warning has occurred repeatedly and what loads were switched ON at the time of the warning.
• Loose connection warning occurs due to exposed wires or loose connections. These wires can be concealed in the wall, could be outside your premises or hidden from plain sight.
  • To identify the exact location of an exposed wire a methodical approach towards analysis of the circuit is required. A trained team from Jhaveri Power Labs can help here.

Why is POWEReasy showing a warning?

Your location has problem with loads reflecting back currents. This could also occur due to backup solutions or if the wiring in the facility in not looped correctly

When do you need to fix this and why?

If the reverse current is because of any form of backup solution or poor wiring, it could become an electrocution risk to a person maintaining the site. Fixing of these warnings during your next weekly maintenance shut down will help protect any person performing electrical work at site.

What should you do next?

• If you have a rooftop solar solution connected at the output of the POWEReasy system then you can ignore this warning
• For all other cases, an electrician to help identify and diagnose the incorrect wiring

Tips for the Electrician

• Reverse currents can occur if the output of a UPS is somehow connected back to the input
• Another common occurrence of reverse current is when line and neutral are taken from two separate DBs.

Why is POWEReasy showing a warning?

Your site has observed a high earth leakage current event. IS12640 that 30mA is unsafe for operation. Faulty devices and exposed wires lead to earth leakage currents. By giving you an early indication for the earth leakage currents POWEReasy is providing an opportunity to identify and fix the electrical fault without having to take a shutdown during critical working hours.

When do you need to fix this and why?

Earth leakage currents can often lead to an electrocution event. It is dangerous to life and property. If the fault is not corrected POWEReasy will trip if the conditions has deteriorated further and earth leakage currents increase. First to save life and property and then avoid disconnection of supply at critical operating times it is advised that this issue be resolved at the first possible shut down within a 24 hour timeline.

What should you do next?

• POWEReasy will tell you the actual value of the leakage current observed and also the kW (power level) that has led to the increase in leakage currents. An informed electrician should be able to identify the load with this information.
• Call the electrician and have this issue isolated and resolved.

Tips for the Electrician

• Within the dashboard you can refer to the Alerts > Issues section to identify the phase and power level of the warning.
• If you are unable to relate the power level and phase to a specific load, the next step would be to switch on the loads one by one and identify when the earth leakage warning is being generated.
• Interchanging of neutral and earth wires can also lead to high earth leakage
• Looping of neutral wires or using neutral wires from a different circuit can also lead to earth leakage

Tips for Expert User

• For advanced analysis you can note down load current and earth leakage currents as you switch on each load MCB.
• High earth leakage currents are observed if phase and neutral wires are not used from the same panel. By measuring the phase and neutral current at system MCB as you switch on loads you can find the 'foreign' phase OR neutral wire by measuring individual neutral and phase wire currents with a clamp meter.
• You can use the Top Risk or Alerts>Issues section to find out if the high earth leakage is due to switching ON or OFF of specific loads. This should narrow down the area where you need to identify the earth leakage current issue

Why is POWEReasy showing a warning?

Your site has observed a high earth voltage. IEEE1159 that 3V is unsafe for operation. In India poor earth voltage is a common phenomena and hence we start to warn at this level. Faulty devices, exposed wires and poor earthing lead to earth voltage errors. By giving you an early indication for the earth voltage POWEReasy is providing an opportunity to identify and fix the electrical fault without having to take a shutdown during critical working hours.

When do you need to fix this and why?

Neutral to earth voltages can often lead to an electrocution event and in many cases even equipment damage. It is dangerous to life and property. If the fault is not corrected POWEReasy will trip if the conditions has deteriorated further. First to save life and property and then avoid disconnection of supply at critical operating times it is advised that this issue be resolved at the first possible shut down within a 24 hour timeline.

What should you do next?

• POWEReasy will tell you the actual value of the neutral to earth voltage. It further gives you advice if you need to service the earth pit or find a faulty loads
• First switch OFF all loads. If the neutral to earth voltage is still high it indicates the problem is towards the input earthing.
  • You need to add water to the earth pit. If it’s a chemical type earth pit then the quality of the earthing connections needs to be verified
• At no load condition if the neutral to earth voltage has dropped, selectively switching loads ON to identify the faulty load
• Call the electrician and have this issue isolated and resolved.

Tips for the Electrician

• Within the dashboard you can refer to the Alerts > Issues section to identify the time of occurrence of the warning.
• If you are unable to relate the power level and phase to a specific load, the next step would be to switch on the loads one by one and identify when the high earth voltage warning is being generated.

Why is POWEReasy showing a warning?

Power factor correction is one of the widely accepted means for electricity bill savings. However most facilities do not improve power factor at the DB. This is a missed opportunity. With POWEReasy you are being warned if the power factor is low even at the DB level so that you can correct it.

When do you need to fix this and why?

Low power factor affects the efficiency of operations as there higher than required currents flowing within the facility. With the power factor warnings POWEReasy can help you improve your operational efficiency. These warnings can be addressed in monthly maintenance shutdowns.

What should you do next?

• Call an electrician to help identify and diagnose if the fault is critical or not.

Tips for the Electrician

• POWEReasy will report the exact type of reactive load compensation that is required to get you to unity power factor. You can choose to use a standard value of reactive compensation to bring the power factor close to 0.8 which is sufficient at the DB level.
• Within our dashboard you can refer to the Alerts > Issues section to identify the phase on which the problem has occurred. You can also see if this warning has occurred repeatedly and what loads were switched ON at the time of the warning.

Why is POWEReasy showing a warning?

Your site has observed high variation in voltage in a 24 hour period. If there are significant fall and rise in voltages it does have an adverse effect on electrical appliances. Indian electricity act requires low voltage supply to be maintained within a +/- 6% range.

When do you need to fix this and why?

This condition is coming from your supply. Is it advised that you protect your expensive and critical devices by installing suitable voltage regulation devices.

What should you do next?

• You can use your electrical supply but you want to use it with devices that have wide voltage operating range. Many devices use universal supply range from 90-280V. You can look at device ratings to identify these loads.
• For portable loads you can shift loads from the phase that is showing the warning to another phase.

Tips for the Electrician

• If the user is seeing the problem repeatedly, a suitable voltage regulation device can be recommended. You can opt for the POWEReasy Voltage optimizer that comes with an 18% energy savings validation by CPRI.

Why is POWEReasy showing a warning?

Your site has observed high unbalance in voltage amongst the three phases. IEEE1159 requires voltage unbalance be maintained within a 3% range. High voltage unbalance can lead to lowering the life of three phase equipment.

When do you need to fix this and why?

This condition is coming from your supply. A 5% voltage unbalance is sufficient to reduce your motor life by half. To protect your three phase devices it is advised that you install suitable voltage regulation devices.

What should you do next?

• Avoid using three phase devices while the unbalanced voltage warning is present

Tips for the Electrician

• If the site has unbalanced loading conditions then balancing the load on all three phases can help improve voltage unbalance.
  • If the user is seeing the problem repeatedly, a suitable voltage regulation device can be recommended. You can opt for the POWEReasy Voltage optimizer that comes with an 18% energy savings validation by CPRI

Why is POWEReasy showing a warning?

Your site has observed a high voltage harmonics. The older standard IEEE519-1992 recommends voltage harmonics to be constrained within 5%. Voltage harmonics can lead to malfunctioning electronic devices, humming in electromagnetic devices and overheating in transformers.

When do you need to fix this and why?

Critical Voltage Harmonics needs to be fixed immediately or it would damage your equipment

What should you do next?

• Call your electrician to identify any internal source of voltage harmonics.

Tips for the Electrician

• Voltage harmonics could be due to poorly maintained transformer
• Poor earthing can also have an impact on voltage harmonics
• Extremely high current harmonics can also lead to voltage harmonics. if the user is seeing the problem repeatedly, a double conversion UPS could be recommended

Why is POWEReasy showing a warning?

Your site has been observing short interruptions in the supply that are 3 to 20ms in duration. Such short interruptions stress electronic devices and causes unwanted failures.

When do you need to fix this and why?

Short interruptions are difficult to fix. If they occur repeatedly you will be advised corrective action which can be implemented during the weekly maintenance shutdown.

What should you do next?

• Short term interruptions are difficult to fix. If you see repeated occur rence POWEReasy will advise you to install suitable capacitors or use a UPS
• The decision to fix the problem will be dictated on how critical the loads in your facility are

Tips for the Electrician

• If the interruptions are occurring with inrush current then solving the inrush current problem will solve the short term interruption problem
• Poor earthing can also have an impact on voltage harmonics
• Capacitors can be used to minimize the effect of short term interruption on critical loads.
• If the user is seeing the problem repeatedly, a double conversion UPS could be recommended

Why is POWEReasy showing a warning?

Your site has been observing inrush currents exceeding 100A. Such high currents are observed during motor or power supply start up

When do you need to fix this and why?

Inrush currents overload the electrical systems and can lead to false tripping. In addition, these high currents also cause short term interruptions. As such they need to be eliminated.

What should you do next?

• Inrush current can be minimized by having startup filters such as NTCs, line inductors or in case of motor soft starters.
• Have your electrician consult the manufacturer of the equipment that is causing the inrush currents.

Tips for the Electrician

• Typically motor manufacturers will recommend a soft starter / star delta starter to limit the inrush current
• For electronic loads that have inrush current an NTC can be used. The manufacturer should recommend a suitable device.
• If you do not get help from the OEM you can consult Jhaveri Power Labs for help.