July 2023

Voltage Fluctuations Begone! Experience Stable Power with Servo Stabilizer for Your Residence.

By |2023-07-08T11:58:51+05:30July 8th, 2023|

The Servo Controlled Voltage Stabilizer (5kVA) is a precision-designed voltage regulation solution that ensures stable and reliable power supply for sensitive electronic equipment. With a capacity of 5kVA (5000VA), it is suitable for various applications, including small to medium-sized commercial establishments, offices, and industrial setups. Issues Voltage fluctuations are variations in the voltage levels [...]

Pre-Charge Resistors: Essential for Dependable and Safe Battery Operation

By |2023-07-08T11:07:09+05:30July 8th, 2023|

Precautions to take before connecting Inverter to Battery When you are connecting any Inverter to the Battery (thru the fuse), you would have noticed sparking as shown below. You can also check out the same in the below video. https://youtu.be/_PgthByAYz4?t=630 This sparking happens because the capacitors in the Inverter try to get charged [...]

June 2023

SPD – Working, Construction and Which voltage to select (280V or 320V)?

By |2023-06-03T11:43:05+05:30June 3rd, 2023|

Contributed by: Suraj Kumar HS 280V Vs 320V AC SPD Introduction Surge Protection Devices (SPDs) are devices that are used to protect electrical equipment against transient over voltage (TOV). TOVs often come from one of three places: the grid side (like in a load-shedding situation or switching at the local substation), or the load [...]

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January 2023

Need for AC earth pits in solar installations?

By |2023-01-24T10:37:34+05:30January 24th, 2023|

We do not need to install new AC earth pits for solar projects since the existing AC earth pits would suffice (if they have been designed properly to handle the fault current). In a solar installation, we are not increasing the overall AC current in the AC circuit. Before solar, if 10A was flowing [...]

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December 2021

Acceptable variation in Tilt angle of solar panels at a site

By |2021-12-11T11:08:01+05:30December 11th, 2021|

In certain cases, there would be a variation in the tilt angle of solar panels at a single site itself due to unevenness of the roof, solar arrays spread across multiple roofs, curvature of barriers, uneven cement patches and to avoid shadows from adjacent solar tables and walls. In such cases, customers can raise the [...]

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Inverter Clipping Losses – SolarEdge

By |2021-12-11T11:21:45+05:30December 11th, 2021|

We get questions from clients about oversizing of inverters and why we are connecting more panels to an inverter - like connecting 33 kWp of panels to a 27.6 kVA inverter. Isn't this inefficient or a wastage of solar panels? Let's say that we are using 380Wp panels. The panel is rated 380Wp under STC [...]

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October 2021

Can DC, AC and LA earth pits be connected together?

By |2021-10-17T13:09:51+05:30October 17th, 2021|

Technically Yes. All earthing pits should be bonded together so that there is equipotential bonding amongst them thus preventing back-feed from earth. However, some DISCOMs insist that DC earthing pits, AC earthing pits and LA pits should be kept separate. Please have a read of Legrand's Protection against Lightning Effects guide (Page 8) which [...]

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September 2021

Earthing practices at EcoSoch

By |2021-10-25T15:08:30+05:30September 27th, 2021|

With highly sensitive electrical and electronic components in solar installations, the need for protection of these costly equipment against fault and lightning current is very much necessary. Electrostatic discharge can damage sensitive electronic equipment and disturb the solar power supply. Any voltage difference between individual electronic units can destroy valuable equipment. In addition, noise [...]

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November 2020

UPVC Conduits Vs Pre-GI Cable Trays for Outdoor Use

By |2021-03-18T15:37:27+05:30November 17th, 2020|

At EcoSoch, we use UPVC conduits on the rooftop for a reason whether it be residential, apartment, commercial, industrial or institutional projects as shown below: However, the current norm of other EPC vendors is to use perforated Pre-GI cable trays to carry the DC cables for large projects as shown [...]

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July 2020

DC and AC voltage drop – Standards

By |2020-07-07T18:07:41+05:30July 7th, 2020|

DC Voltage Drop For Solar PV installations, the standard to follow would be from Australia called AS/NZS 5033:2014. It states, "For LV PV arrays under maximum load conditions (Imp), the voltage drop from the most remote module in the array to the input of the inverter should not exceed 3% of the Vmp voltage [...]

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