energy-meters:start
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| ====== Energy Meters start page ===== | ====== Energy Meters start page ===== | ||
| - | At Victron Energy, we stock several types of Energy Meters | + | At Victron Energy, we stock several types of Energy Meters. |
| - | * ET112 for single phase monitoring (including a single phase inverter in a 3 phase system) | + | |
| - | * ET340 for multi-phase installations | + | |
| - | * EM24 for 3 phase monitoring only. | + | |
| - | The Energy Meters are used in systems with a Venus-device. To measure the output of a grid inverter (more info in the Venus-OS manual [[https:// | + | The Energy Meters are used in systems with a Venus-device. To measure the output of a PV inverter (more info in the Venus-OS manual [[https:// |
| ===== 1. Selection guide ===== | ===== 1. Selection guide ===== | ||
| + | |||
| + | === First decide if you need single- or three phase meters === | ||
| + | |||
| + | For a three phase utility connection, use a three phase meter. For a three phase PV Inverter, use a three phase meter as well. For a single phase utility connection, use a single phase meter. And in an installation with a single phase utility connection, that also has a PV Inverter that needs measuring with a Victron meter, then you can use Rutger 2 pieces of ET112; or use the ET340. | ||
| + | |||
| + | === Now, based on current, select the model === | ||
| ^ Requirement | ^ Requirement | ||
| ^ ::: ^ ::: ^ Part number | ^ ::: ^ ::: ^ Part number | ||
| | Single phase up to 100A | Shunt | REL300100000 | ET112 | 1 phase - max 100A | | | Single phase up to 100A | Shunt | REL300100000 | ET112 | 1 phase - max 100A | | ||
| | Three phase up to 65A/ | | Three phase up to 65A/ | ||
| - | | Single phase more than 100A/phase | CT | See three phase CT solution | + | | Single phase more than 100A/phase | CT | Not available, use the three phase CT solution |
| | Three phase more than 65A/ | | Three phase more than 65A/ | ||
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| * [[et112|REL300100000 - ET112 - 1 phase - max 100A]] | * [[et112|REL300100000 - ET112 - 1 phase - max 100A]] | ||
| * [[et340|REL300300000 - ET340 - 3 phase max 65A/phase]] | * [[et340|REL300300000 - ET340 - 3 phase max 65A/phase]] | ||
| - | |||
| - | No longer used: | ||
| * [[em24|REL200100000 - EM24 - 3 phase max 65A/phase]] | * [[em24|REL200100000 - EM24 - 3 phase max 65A/phase]] | ||
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| === Q1: Can I combine three ET112s for a three phase system? === | === Q1: Can I combine three ET112s for a three phase system? === | ||
| - | No. | + | No. Use a real three-phase meter. |
| === Q2: Can I use other meters, for example from other brands? === | === Q2: Can I use other meters, for example from other brands? === | ||
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| This is also how Victron’s phase compensation feature works, to make the most of the cost savings for an ESS system when there is a differential in generation and load across different phases. | This is also how Victron’s phase compensation feature works, to make the most of the cost savings for an ESS system when there is a differential in generation and load across different phases. | ||
| - | ===== DISQUS ===== | + | === Q10: Can I use an isolated USB-RS485 interface? |
| + | Yes. The interfaces we sell are non isolated; suitable for most use cases. | ||
| + | |||
| + | In case an isolated one is needed; purchase it dirsctly from [[https:// | ||
| + | |||
| + | * USB485-STIXL : Isolated USB to RS485 converter | ||
| + | |||
| + | ===== DISQUS ===== | ||
| ~~DISQUS~~ | ~~DISQUS~~ | ||
| + | |||
energy-meters/start.txt · Last modified: 2022-09-13 14:42 by stefanie