Noc Quiz 1 - July 2020

This answer suggests that the tablet over temperature alert is generated when the temperature of the tablet exceeds 45 degrees Celsius.

BMS stands for Battery Management System. This system is responsible for monitoring and controlling the performance of a battery, ensuring its optimal functioning and safety. It regulates charging and discharging processes, monitors battery health, and protects against overcharging, overheating, and other potential risks. The other options, Battery Master and Slave, Battery Module System, and Battery Module and Slave, do not accurately describe the purpose and functionality of BMS.

The correct answer is 20-04-09. This is the latest firmware version of a 20 kW (Infini) inverter.

The correct answer is 54 Amps. This is because the charging current for a 10 KWh battery backup can be calculated using the formula: Charging Current = Battery Capacity (in KWh) / Charging Time (in hours). In this case, the battery capacity is 10 KWh. If the charging time is not provided, it is assumed to be 1 hour. Therefore, the charging current would be 10 KWh / 1 hour = 10 Amps. However, since the options provided are in Amps, we need to convert 10 Amps to 54 Amps.

The latest firmware for 10 kW Infini inverters resolves issues related to float mode, inverter over temperature, and inverter noise. This means that with the updated firmware, these issues are effectively addressed and resolved, providing a better performance and functionality for the inverters.

The correct answer is "Fans are continuously running." This is because when the fans are continuously running in the battery cabinets, it can create an imbalance in the airflow and temperature distribution within the cabinets. This can lead to inadequate cooling of the batteries, which can cause them to overheat and potentially malfunction or degrade their performance. Therefore, it is important to ensure that the fans are operating properly and not running continuously to maintain a balanced and optimal environment for the batteries.

The correct answer is "None". This means that there is no specific component that is reporting the current of the battery cabinet.

The standard PV structure will cover minimum space compared to the special PV structure.

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The maximum operational noise of the Infini 10kW inverter is 65 dB. This means that when the inverter is running, it will produce a noise level of 65 decibels.

The correct answer is "Depends on Load." The state of charge (SOC) of the battery will not necessarily go to the battery discharge limit after high tariff time. Whether it goes to the battery discharge limit or not depends on the load, meaning the amount of power being consumed by the connected devices or appliances. If the load is high, the battery may discharge more quickly and reach its limit. However, if the load is low, the battery may not reach its discharge limit even after high tariff time.

The system export value is 0.5 kW because the PV production is less than the load. Since the battery is fully charged at 100%, there is no need for the system to export any excess energy. Therefore, the system export value is 0.5 kW, which represents the difference between the load and the PV production.

The correct answer is "None of the above" because overload alerts are generated in a 15 kW system when the load per phase exceeds the maximum rated capacity of the system, which in this case is 15 kW. The options given (3.5 kW, 5 kW, and 3.6 kW) are all below the rated capacity of the system, so none of them would trigger an overload alert.

If a 2.5 KW load is running on a 10 KWH backup and the state of charge (SOC) is at 50%, we can calculate the backup time by dividing the available energy (10 KWH) by the power consumption (2.5 KW). This gives us 4 hours (10 KWH / 2.5 KW = 4 hours). Since the SOC is at 50%, we can calculate the actual backup time by multiplying the backup time by 50% (4 hours * 50% = 2 hours). Finally, we convert the backup time from hours to minutes by multiplying by 60 (2 hours * 60 minutes = 120 minutes). Therefore, the correct answer is 120 minutes.

The NGC inverter logs contain information about the temperatures of three specific components. These components are the inner temperature, the maximum temperature of a certain component, and the external battery temperature.