UPMSP High School Solar Repair case studies
UPMSP High School Solar Repair · Put your knowledge to work in context.
The UPMSP High School Solar Repair trade subject is a vocational paper offered under the Uttar Pradesh Board of High School and Intermediate Education (UPMSP, commonly called UP Board) at the Class 10 level. It is intended for students in vocational or trade streams who want a working, hands-on grounding in solar photovoltaic repair rather than an engineering-level design qualification. The UPMSP High School Solar Repair case studies are 5 cases and about 3,769 words.
1Four 150 Wp Modules, One 30 A PWM Controller: A 600 Wp School System That Never Reaches Full Charge
Trainees at a government higher secondary school in Uttar Pradesh inspect a 600 Wp stand-alone system that runs six 9 W LED tubes and one 12 V fan, about 1.1 kWh/day. The array is four 150 Wp polycrystalline modules (Vmp 18.2 V, Imp 8.24 A, Voc 22.5 V) wired all in parallel with 4 mm2 cable into a 30 A PWM charge controller.
694 words, about 3 min2Two-Year-Old Tubular Battery Losing Backup: Battery, or the Ten-Metre Controller Cable?
A shop in a block town runs three 20 W LED tubes, a 40 W fan and a 12 V DC television, about 100 W total for six hours each evening. The system is three 150 Wp modules in parallel, a 30 A PWM charge controller, and a 12 V, 100 Ah flooded tubular battery.
739 words, about 4 min3Insulation Fault on a 5 kWp Rooftop That Appears Only After Rain
A 4.98 kWp rooftop system on a school building has twelve 415 Wp modules in two strings of six. Each string has Voc 227 V and the array has Voc 454 V.
799 words, about 4 min4A 1 hp Solar Pump Trips Its 3 kW Inverter Thirty Seconds After Starting
A community borewell in a district of Uttar Pradesh is powered by an off-grid system: a 24 V, 200 Ah tubular bank (two 12 V monoblocs in series), a 3 kW single-phase inverter with a 6 kW surge rating for 3 seconds and a low-voltage disconnect at 21 V, and a 1.6 kWp array of four 400 Wp modules. The pump is a 1 hp (0.75 kW) capacitor-start AC submersible drawing 1.1 kW at 0.78 power factor.
762 words, about 4 min5A 10 kWp Rooftop Loses Fifteen Performance-Ratio Points in Fourteen Months
A 10 kWp grid-tied array on a college workshop roof has twenty-four 415 Wp modules in two strings of twelve. In its first March the site pyranometer recorded 145 kWh/m2 and the meter logged 1,250 kWh.
775 words, about 4 min