Solar PV Installation and Batteries Exam | Questions & Answers (100% Verified)

Solar PV Installation and Batteries Exam | Questions & Answers (100% Verified) Solar PV Installation and Batteries Exam | Questions & Answers (100% Verified) what type of batteries are used - ANSWER - valve regulated lead-acid what is the additional safety margin on Fuses and AC Breakers - ANSWER - 125% on Fuses and AC Breakers ISC - ANSWER - Short Circuit Current Voc - ANSWER - Open Circuit Voltage Inverter output designs - ANSWER - Sine Wave and Modified Sine Wave Kwh to Watt hours - ANSWER - x 1000 = Watt Hours Electrolyte and how to use it - ANSWER - liquid or gel in batteries that contains ions. If frozen in a battery do Not charge. Flooded Open-Vented Batteries need what - ANSWER - Equalization. Short Period over charging of batteries to refresh cell capacity. Parallel battery connections should be limited to how many strings - ANSWER - 3-4 strings Soiling - ANSWER - accumulation of dust and dirt on an array that shades and reduces electrical output. Deep Cycle Lead-Acid batteries can be discharged how much - ANSWER - 80% most PV systems use this type of battery Charge Controller - ANSWER - controls the charging rate and/or state of charge for batteries. Also can monitor system performance and provide system protection. How do batteryless PV Systems connect - ANSWER - In Parallel through the utility Service to panel. AC current losses vs DC current losses using the same wire - ANSWER - AC loses a lot less, more efficient Closed Circuit Voltage vs Open Circuit Voltage - ANSWER - =? rated Voltage in PV source circuit should be which voltage - ANSWER - Closed-Circuit Voltage