What is the purpose of the AC voltmeter on a load bank?

The purpose of the AC voltmeter on a load bank is to display the current voltage value, which is essential for operators to gauge performance and ensure that the system is running within specified voltage parameters. This measurement allows technicians to monitor the output voltage effectively, helping to maintain accurate and stable power delivery. The voltmeter serves as a vital instrument for assessing the status of the electrical system during testing or operation, ensuring that voltage levels are appropriate for the load being drawn.

In a practical context, this monitoring helps in troubleshooting and identifying any discrepancies or issues that might arise, without which, there may be risk of equipment damage or inefficiency. While other options touch on functions related to the load bank, such as regulation of voltage output or monitoring temperature, those are typically handled by different components or instruments. The voltmeter specifically focuses on voltage measurement, making it a critical component of load bank operations.