The Hypervolt has 6mA DC protection built-in therefore an expensive external B-type RCD is not required making installation straightforward. The CTs can be clipped on either the Live or Neutral cable on single-phase systems. ( Note: you can only use the Live tails on the 3-phase system) Pressac’s wireless current sensors (CT) measure the alternating current (AC) and report the average of 5 measurements every 30 seconds.

Note: the clamp can be placed on the neutral tail, however the direction of the arrow shown will need to be reversed The arrow on the bottom of the sensor must be pointing in the direction of normal power flow (e.g. away from the PV inverter) if on the Live cable, or reversed if on the Neutral cable Measurements of all three channels are taken separately, these separate readings are transmitted in one EnOcean Telegram every 30 seconds. The Pressac sensing V3 wireless single channel CT clamp is designed to measure and report the AC current flowing in a single channel. Powered from the measured conductor, the measured current in the channel is reported every 30 seconds. The Pressac sensing V3 wireless single channel CT clamp is easily installed with no disturbance to the measured conductors. We recommend that extension leads are not used as the increase in resistance (Ohms) can affect the accuracy of measurements. Use of third-party leads will void the warranty of the sensor.

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Because of this limitation, there are less options for managing the surplus power with this type of battery system. It is usually possible to give priority to the battery by setting an Export Margin in the zappi. A setting of 50W or 100W is recommended. The Export Margin setting is found in the Advanced Settings/Supply Grid menu. Some properties may have a third-party energy diverter installed and you may want the zappi to take priority (when consuming surplus power) over the diverter. This is possible by installing an extra CT to monitor the diverter. The CT should be clipped around the Live cable of the supply feeding the diverter. The arrow on the CT should be pointing away from the diverter (towards the consumer unit). Wire the CT to the nearest myenergi device or use a harvi unit if a wireless connection is needed.

Measurements are taken every five seconds and these values are collated to produce an average once every 30 seconds. This average figure is the transmitted value. As the unit is 100% energy harvesting, it can only perform a self-powered learn if it is clipped around a conductor and the minimum required current is flowing. (See below table) 3 Channel CT Clamp V3 Versions As the unit is 100% energy harvesting, it can only perform a self-powered learn if it is clipped around a conductor and the minimum required current is flowing. (See below table) Single Channel CT Clamp V3 VersionsIf all three phases are monitored and the generation is 3-phase, it is also possible to net the export power across phases, to do this, enable Net Phases in the Supply Grid menu see Supply Grid – Net Phases. This allows the zappi to use surplus power from any phase and not just the phase which the zappi is installed on. However, you must be sure that the electricity is metered in such a way as to allow this. The arrow on the bottom of the CT sensor must be pointing towards the consumer unit (in the direction of grid import) if on the Live cable, or reversed if on the Neutral cable (single phase only) Pressac’s technology is system agnostic, the data from our sensors can be used in any way you need. There are different options to choose from, making it easy to get your data in the way that’s right for you. A property has a large PV, a swimming pool and two zappis. The supply to the zappis is only rated at 40A so to be safe a Group Limit of 40A is set. There is an LED panel on the front of the unit which illuminates different colours depending on the charging mode. When waiting in standby it’s blue and then changes to green when an EV is plugged in and charging.

Hi, I have a solis 3.6k inverter and fox ess lithium battery (big). However these is all in a workshop alongside the outbuilding fuse board. A bit of research suggests that I should be able to connect the CT clamp to an RS485/MODBUS wireless transmitter/receiver to solve this. I'd appreciate any experiences in this regard and any product recommendations. I do see anything for sale that is a purpose built solution for this. Any links to products and/or homegrown solutions would be appreciated. There is an option to add other CT sensors (available separately) for monitoring the generation or other appliances such as battery systems or general loads. Installing a CT for the generator (PV system or wind) will allow the main screen to show the generated power and the total power consumption of all the other appliances in the property.Is the transmitted measurement a total for all three channels, or are the values transmitted independently? zappi includes an additional automatic disconnection device which satisfies the requirements of BS7671:2018-amd1:2020 722.411.4.1 (v) (the 18th Edition IET Wiring Regulations).