{"id":16142,"date":"2016-02-29T15:59:32","date_gmt":"2016-02-29T14:59:32","guid":{"rendered":"http:\/\/en.sma-sunny.com\/?p=16142"},"modified":"2017-12-13T16:12:39","modified_gmt":"2017-12-13T15:12:39","slug":"saltwater-chemical-plant-monsoon-no-match-for-the-sma-fault-detective","status":"publish","type":"post","link":"https:\/\/www.sma-sunny.com\/en\/saltwater-chemical-plant-monsoon-no-match-for-the-sma-fault-detective\/","title":{"rendered":"Saltwater, Chemical Plant, Monsoon: No Match for the SMA Fault Detective"},"content":{"rendered":"

Seals, rust protection, flawless insulation: Reinhard Lehmann, an analysis engineer, has been focusing his efforts for eight years now on helping SMA equip Sunny Central inverters for even more effective outdoor use. One of his responsibilities is ensuring that these high-performance central inverters are fit for outdoor use\u2014at all times, anywhere in the world.<\/strong><\/p>\n

 <\/p>\n

\"Acoustics<\/a>

Acoustics test at SMA\u2019s central inverter testing center<\/p><\/div>\n

SMA\u2019s site in Niestetal is home to a central inverter testing center\u2014the only one of its kind in the world\u2014where the largest members of the SMA product family are put through their paces. This means they can be positioned anywhere in the world \u2014even in the most adverse of conditions. But sometimes, the devil is in the detail and, as is the case with any technical device, inexplicable challenges may initially be encountered here, too.<\/p>\n

\"Unconventional<\/a>

Unconventional testing methods: Reinhard at work<\/p><\/div>\n

 
\n <\/p>\n

If an inverter ever fails to run as it should\u2014due to extreme conditions, for example\u2014Reinhard and his colleagues in the Service department are immediately on the scene to analyze the fault and the environment in which it occurred. This keeps operations running indefinitely over the long term, whatever environmental forces are at play. Reinhard particularly enjoys dealing with cases involving corrosion and chemical reactions that trigger changes in the material. In fact, he has become known as an SMA expert in this field\u2014and not just within the walls of the testing center.<\/p>\n

 <\/p>\n

It gets Even Better: Optimizing Central Inverters<\/h5>\n

A challenging case where environmental influences caused extreme damage to central inverters at a facility belonging to TATA Power in India, located at 22\u00b024\u201929.09\u2033N \u00a068\u00b059\u201928.39\u2033E, also landed on Reinhard Lehmann\u2019s desk. These Sunny Central inverters are located just a few hundred meters from the ocean, and the white crests of the Arabian Sea sometimes reach as far as the devices. A chemical plant is also situated directly behind the PV system, from which residue is also often recovered on the inverters. The third challenge is monsoons. Twice a year, the region is pounded for several weeks by heavy rain and humidity as high as 98%, which presents a real challenge even for rigorously tested central inverters.<\/p>\n

\"The<\/a>

The PV system in India is located 100 meters from the ocean.<\/p><\/div>\n

\"The<\/a>

The Indian PV power plant is not only close to the sea but also right next to a chemical plant<\/p><\/div>\n <\/p>\n

As the humidity level found in this system presented a risk of choke failure, Reinhard Lehmann got in touch with employees in the Indian Service department via a video conference. He illustrated on screen how they should go about looking for the source of the fault to find the cause of the humidity. After this detailed training, they quickly found what they were looking for: the insulation wasn\u2019t thick enough to withstand the dripping, chemical-enriched saltwater was the culprit. The fault was quickly remedied.<\/p>\n

 <\/p>\n

Solutions Are Transferred to Serial Production<\/h5>\n
\"Reinhard<\/a>

Reinhard Lehmann, analysis engineer at SMA<\/p><\/div>\n

Reinhard Lehmann was pleased: \u201cAfter we applied wider insulation to a specific spot [see photo above], the Sunny Central devices in this system have since then already withstood two monsoon seasons and have been working perfectly.\u201d Naturally, SMA has applied this solution to serial production. \u201cThis means that Sunny Central devices are now that much more resistant.\u201d<\/p>\n

Reinhard Lehmann is of course continuing his mission of identifying and rectifying \u201ccorrosion incidents\u201d and is always happy to receive any information about systems at extreme inverter locations equipped with Sunny Central inverters.<\/p>\n

 
\nDo you want to find out more about what happens to our Sunny Central inverters in the testing center? Then you may be interested in the following articles:<\/em><\/p>\n

Off to Munich: Sunny Central in High Altitude Test<\/a><\/strong><\/p>\n

Sand and Dust: Sunny Central CP in a Stress Test<\/a><\/strong><\/p>\n

Unique Testing Center for Hybrid Energy Supply Systems in Operation<\/a><\/strong><\/p>\n

 <\/p>\n\n\n

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