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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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June 2020

Corrosion in Pre-GI and Hot Dip Galvanized (HDG) Structures

By |2020-07-07T09:50:54+05:30June 29th, 2020|

Please have a read of the below article from Nuevosol which talks about corrosion in Pre-GI and Hot Dip Galvanised (HDG) Structures. Salient points are as below: Nuevosol article Pre-GI can be used as long as it is 550 GSM steel. The galvanization coating thickness is a maximum of 20 micron each side for [...]

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CAT6 and RS485 cables for communication

By |2020-06-29T12:23:29+05:30June 29th, 2020|

Basics A CAT6 cable can theoretically carry data for 100m but after 80m, there would be signal attenuation and it would be impractical. So 80m is the practical limit for CAT6 cables. An RS485 cable can carry data upto 4000ft (or 1.2km) @ 100kbps as shown below. If you need more information on the [...]

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Can DC and AC cables run in the same conduit?

By |2020-06-29T11:58:08+05:30June 29th, 2020|

We have been asked a few times in the recent past as to whether we can run DC and AC cables run in the same conduit.The answer is No since the DC cables could induce a DC voltage onto the AC side. The AC sine wave should oscillate about the 0 volt axis i.e., the positive and negative [...]

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Solar Generation in Bangalore

By |2020-06-19T01:20:29+05:30June 19th, 2020|

Solar Installation at Rainbow Drive Villa Community, Bangalore | India Solar Plant Generation in Bangalore, India Generation during Monsoon Season? “Does it work at all in the monsoon months?” “I don’t think Bangalore is an ideal place for Solar Rooftop [...]

Inspection using thermal camera

By |2020-06-18T22:49:13+05:30June 15th, 2020|

A lot of time, effort and money can be save if one has the right tool in hand. One such useful device is the thermal imaging camera which EcoSoch has invested in. It is important that electrical components work correctly and in case of any fault, it should be detected as early as possible [...]

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How panel level monitoring has helped…

By |2020-06-18T12:42:51+05:30June 14th, 2020|

We will have a look at a couple of our sites where we have installed solar panels with SolarEdge systems and how module level monitoring of panels has helped us in identifying issues. Case Study I -  Solar Panels @ Krishi Group, Bangalore  We noticed that 2 of the solar panels were producing less [...]

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Charging lead acids properly

By |2020-06-09T20:33:30+05:30June 9th, 2020|

Charging of lead acid batteries is not an oft-spoken or documented topic. So here I would like to describe how to charge lead acids properly using the 3-stage method (Bulk, Absorption and Float) or the CC-CV method as shown below. Particularly, the “Charging current during Bulk phase” and the “Time for Absorption phase” that [...]

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MCB – Types, Working and Trip Curves

By |2020-06-09T13:55:40+05:30June 9th, 2020|

MCB or Miniature Circuit Breaker is an electromechanical device which protects an electric circuit from an overcurrent. The overcurrent in an electrical circuit may result from short circuit, overload or faulty design. In short, MCB is a device for overload and short circuit protection. They are used in residential & commercial areas. Just like we spend the time to make [...]

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