PV Installations 4 - types of system, charging, batteries, connections, isolation, metering, tariffs and Safety.

which PV system only supplies dedicated AC or DC circuit loads and does not connect with the DNO mains supply grid.
1. Stand-alone System
2. Reserve System
3. Feed-in Tariff system
4. Energy system
What device is used to disconnect a PV array from a PV system, for the purposes of maintenance or repair.
1. AC isolator
2. DC Isolator
3. Inverter
4. charge controller
What device is used to disconnect a charge controller from a battery bank, for the purposes of maintenance or repair.
1. AC isolator
2. DC Isolator
3. Inverter
4. charge controller
What device is used to disconnect an inverter from a distribution (fuse) board, for the purposes of maintenance or repair.
1. DC isolator
2. AC Isolator
3. Inverter
4. charge controller
what is the name of the device that converts DC electricity into AC electricity.
1. Transformer
2. Converter
3. Inverter
4. Reverter
What is the correct name for the device that ensures batteries are correctly charged (not overcharged or excessively discharged)
1. Battery charger
2. Charge controller
3. Inverter controller
4. Grid controller
Which type of battery is not suited for PV applications.
1. GEL batteries.
2. AGM batteries.
3. Shallow cycle, lead acid batteries.
4. Deep cycle batteries.
Which type of battery is suited for PV applications.
1. GEL batteries.
2. lead acid batteries
3. Shallow cycle, lead acid batteries.
4. shallow cycle batteries.
Which type of battery is not especially suited to PV applications due to a low tolerance for high discharge rates and frequent recharging.
1. Deep Cycle
2. Shallow Cycle
3. GEL
4. Absorbed Glass Mat
What Unit of measure is used for battery capacity?
1. volts
2. volts per hour
3. Amperes per hour
4. watts per hour
A 12v GEL battery has a capacity of 100 Ah. How many amps can it continuously supply for 5 hours?
1. 10 Amps
2. 20 Amps
3. 50 Amps
4. 100 Amps
A 12v GEL battery has a capacity of 300 Ah. How many amps can it continuously supply for 10 hours?
1. 10 Amps
2. 30 Amps
3. 50 Amps
4. 100 Amps
A PV system is required to Supply 20 A for 5 hours. Ignoring any losses, state the battery capacity required to store this charge
1. 65 Ah
2. 25 Ah
3. 100 Ah
4. 80 Ah
Inverters that are connected to the DNO mains grid must meet specific requirements of regulatory document G 83/1 including? (pick one answer)
1. switching off if the mains supply fails
2. switching off if the frequency is 50.5 Hz
3. Switching off if voltage exceeds 264 v
4. Switching off when the PV arrays are not generating
Inverters that are connected to the DNO mains grid must meet specific requirements of regulatory document G 83/1 including? (pick one answer)
1. switching off if there is a 'mains' supply cut due to a fault
2. switching off if the frequency falls below 50Hz
3. Switching off if voltage drops below 207 v
4. the provision of a compliance certificate for the inverter
Approximately how much larger should the capacity of an Inverter be when compared to the connected loads?
1. 10 to 20% larger
2. 15 to 25% larger
3. 25 to 30% larger
4. 30 to 50% larger
For PV systems that connect to the DNO mains supply grid, will benefit from which tariff
1. generation tariff
2. feed in tariff
3. standard tariff
4. DN0 tariff
For PV systems that connect to the DNO mains supply grid and generates excess power which is delivered to the grid, will benefit from which extra tariff
1. generation tariff
2. feed in tariff
3. standard tariff
4. DN0 tariff
What is the standard unit of measure for power consumed or generated?
1. watt hours
2. kilo watt hours
3. watt seconds
4. kilo watts
what device is used to measure and record the power generated by a PV system as part of a feed in tariff
1. utility meter
2. generation meter
3. voltmeter
4. Power meter
what device is used to measure and record the power consumed from the DNO mains grid system
1. utility meter
2. generation meter
3. voltmeter
4. Power meter
what is the name of the new type of electricity meter that combines the functions of measuring both power consumed by an installations and power generated by a PV system as part of a feed in tariff
1. utility meter
2. generation meter
3. Smart meter
4. Power meter
Which type of battery suited for PV applications.
1. Cell batteries.
2. AGM batteries.
3. Shallow cycle, lead acid batteries.
4. lead acid batteries.

PV Installations 4 - types of system, charging, batteries, connections, isolation, metering, tariffs and Safety.

Photo Voltaic Systems 4: 10 randomised questions from a LARGE question bank.