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Solis seminar

Solis Seminar, Episode 27 : How does a single-phase inverter connect to split-phase grid

Background In some special countries and regions, the grid structure involves split-phase grid, but if there is no split-phase inverter when installing PV system, can the conventional single-phase inverter be connected to the grid? What problems should we pay attention to? We will share them with you in this Solis seminar. About 120V/240V Split Phase […]

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Solis Seminar : Solution to “OV-G-V0X” alarm

Background In PV systems, grid over-voltage faults (OV-G-V0X) can occur frequently, especially in areas with weak grids and high solar PV grid-connected capacity. Such faults are common and in this episode of Solis seminar, we will share with you the causes of “OV-G-V0X”, and how to rectify the issue. Fault Description During normal operation of […]

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Solis Seminar, Episode 24: PV Panel Micro-Crack Problems and Identification Methods

The last Solis Seminar introduced the problem of PID effect and its solutions. This seminar will give details on the causes of cell micro-cracks, how to identify them and ultimately prevent them. PID effect, micro-cracks, and hot spots are three important factors that can affect the performance of crystalline silicon photovoltaic modules. Among them, PID […]

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Solis Seminar- Solution For PID Recovery

Potential Induced Degradation (PID) is a phenomenon which affects some PV modules with crystalline Si cells and leads to gradual deterioration of performance. The degradation can be as much as 30% or more after a few years. Some module manufacturers are already working to develop countermeasures by using new materials, but the general trend to […]

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Solis Seminar Episode 22: Solutions for Error Code “GRID INTF”

The power grid is a fragile and complex system and its operation will affect connected equipment. At the same time, the abnormal operation of connected equipment will also affect it causing what’s known as, “grid disturbance”. Grid disturbance is a relatively common type of a grid-side fault. The frequency of its occurrence is second only […]

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Solis Seminar Episode 21: Installing AC Circuit Breakers Correctly

Background Recently, a customer reported that the circuit breaker in the fuse box of the newly installed solar PV system was experiencing an abnormal arc when it was disconnected. The customer suspected that it was caused by the inverter, however, a Solis technical engineer discovered that the circuit breakers were reversed fed. After replacing the […]

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Solis Seminar Episode 19: How to Section AC Cable for Solar PV systems

Background In PV systems, we need to consider three types of cables: PV cables, AC cables, and grounding cables. PV cables are usually laid outdoors and need to be protected from moisture, direct sunlight, cold temperatures, and ultraviolet. It is essential to choose PV-certified cabling, which cannot be replaced by conventional cabling(PV-Certified Cable’s UV protection, […]

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Solis Seminar Episode 16: Leakage Current Failure

Background In the last episode of the Solis Seminar series we talked about how faults can occur during wet weather, in particular the importance of “PV Isolation Protection”. In this episode, we will discuss “leakage current failure” faults and cover possible causes as well as ways to prevent the issue. We will look at a […]

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Solis Holds 1st Technical Seminar with 1 GW Celebration in Ahmedabad

Ginlong (Solis) Technologies, held its first technical seminar of 2021 in Ahmedabad, India at Hyatt Regency on February 12, 2021. Solis organized the event to update and share information of its new technology that are coming up in India and its recent milestone of cross 1 GW shipments. Solis entered India in 2015, and has […]

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