UEEEL0047 Revision

Choose all that apply. Anti-islanding means:

• It is a type of generator

• It is a type of blackout protection

• It is a type of electrical protection

• It switches of grid-connected generators

Choose all that apply. In a power outage, auto-changeover:

• automatically shuts down all circuits

• automatically disconnects from the main grid

• switches to the backup generator or inverter

• switches to power save mode

Choose all that apply. When conducting maintenance on a photovoltaic array, you have to de-energising the solar charge controller because:

• Shutting down the system

• Electrical shock hazard

• A short circuit

• Potential damage to the system components

Choose all that apply. Components in photovoltaic (PV) array systems must be replaced like-for-like otherwise:

• It can introduce compatibility issues

• It can lead to lead to premature wear and tear

• It may compromise the built in safety features

• It may lead to frequent breakdowns and more maintenance

• It may void the warranty on the system

Choose all that apply. Islanding requirements contribute to overall grid reliability. How do they do this?

• They prevent potential damage to connected appliances during a power outage

• They prevent isolated sections of the grid from continuing to operate independently

• They reduce the risk of damage to appliances

• They ensure grid stability when power is restored

Multiple choice. Which of the following is the correct way to conduct an auto disconnect timing test for a solar PV system:

• Turn off the normal supply main switch to disconnect the main electricity supply and time how long it takes for the inverter to disconnect- it should disconnect within 2 seconds.

• Turn off the normal supply main switch to disconnect the main electricity supply and time how long it takes for the inverter to disconnect- it should disconnect within 30 seconds.

• Turn off the normal supply main switch to disconnect the main electricity supply and time how long it takes for the inverter to disconnect- it should disconnect within 2 Minutes.

• Turn off the battery supply main switch to disconnect the battery supply and time how long it takes for the inverter to disconnect- it should disconnect within 2 seconds.

Choose all that apply. Electrical drawings often need to be updated after performing maintenance on a PV array system. Why?

• Maintenance activities might lead to changes in the actual configuration or layout of the PV array system.

• If components such as inverters, modules, or other critical elements are replaced during maintenance, the updated information needs to be reflected in the electrical drawings

• Any changes to the wiring layout, connections, or configurations should be documented in the electrical drawings

• Upgrades or expansions to the PV array system should be properly incorporated into the electrical drawings

Multiple choice. What is the safe work clearance that AS/NZ 4836 requires from low-voltage equipment in an enclosed switchboard panel?

• 50mm

• 500mm

• 5m

• 5mm

Choose all that apply. What are some of the things to consider that might have an impact on an alternative supply system?

• The location of the point of supply

• The type and capacity of supply

• Have appropriate meters been provided

• The position of the metering and servicing equipment

• The point of attachment of an aerial service cable

Multiple choice. What is the name of the document that an installer must provide to the Distributer via the Energy Safety Regulator before an alternative supply system is commissioned?

• A Prescribed Certificate of Electrical Safety (CES)

• A provisional electrical safety certificate (PES)

• A notice of intention to commission (NIC)

• No documentation is required