3) What are the various EPS settings on the inverter and how should they be set for your chosen EPS setup? There are 4 main settings to consider: 1) EPS Output - Enable/Disable.
How Hydes inverter works in emergency power supply (EPS) mode?
In auto mode, the HYD‐ES inverter will charge surplus PV energy into the battery & discharge battery to supply power to local load when PV energy is not enough. In case of blackout, HYD‐ES inverter can work in Emergency Power Supply (EPS) mode.
You'll also need to be careful about what you turn on when in EPS mode. The EPS can supply up to 5kw of power (approx. 20A in the UK). If you draw more than this (say you have the oven on and then switch on the kettle and microwave), the inverter will overload and shut down requiring it to be reset in order to continue working again.
How do I use an EPS inverter?
Install a single/double socket close to the inverter that is fed by the EPS output (via a consumer unit). The socket will be powered via the inverter, during normal operation and in the event of a power failure will automatically switch to EPS mode, so long as the battery has capacity. The end user can plug in devices of their choice.
How to set up EPs load only with PV?
Some customers install the hybrid inverter first as a string inverter (Battery Ready) and add the batteries later, now they can use the back-up without battery. Setting path Main → Settings → Advance Setting → EPS Setting → Super-Backup This function is Disable by default. If users want to supply EPS loads only with PV, just Enable it.
What happens if an inverter is cut – EPs or no EPs?
1) EPS or no EPS, if there is a power cut, the inverter will shut down completely. This is to protect any power line workers that may be working on them. As you can imagine, without this, the power lines could become energised by solar producing homes and that could be an unwelcome shock to someone who will assume the power is off!
This is a manual action and in a power cut, you must pull this switch before any power is supplied from the batteries. You'll also need to be careful about what you turn on when in EPS mode. The EPS can supply up to 5kw of power (approx. 20A in the UK).