Myenergi eddi 16A1P01H, Руководство по установке

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8.4.8 CT Can do’s
Can be wired to ANY
myenergi
device in the network.
harvi
can be used to make CT wireless.
Cable can be extended up to 100m (must use twisted-pair cable e.g. one pair of CAT5).
Cable can be shortened.
Can be clipped around two or more conductors feeding appliances of the same type (e.g. two Live
cables from two inverters that are on the same phase).
Can be in close proximity to other CTs.
Wires can be swapped around in device to reverse the direction of the readings (e.g. change import
to export).
Can be grouped with other CTs of the same type so that the power reading is summed (e.g. east
and west solar Generation).
Can be used on the Neutral conductor (direction of arrow or wires must be reversed).
Can be set to None if you want to exclude the reading.
8.5 Advanced Installation Options
8.5.1 Load Balancing/Current Limiting/Load Curtailment
CTs can also be used to limit the current drawn by
myenergi
devices to avoid overloading circuits; this is
referred to as load balancing or load curtailment. There are four different ways to limit current and they can be
used alone or combined for more complex situations. See the table below:
Function Operation Example
Device Limit Sets a maximum current that can be
drawn by the device (e.g.
eddi
). The
current will not be exceeded even
during boost.
An
eddi
is wired to a 3.4kW heater, but the
supply to the
eddi
is only a 13A fused spur.
Grid Limit Sets the limit that can be drawn from
the grid connection (i.e. the maximum
import current).
The
eddi
and any other linked
myenergi
device, will limit the current
they draw if there is a danger of
exceeding the set Grid Limit.
An
eddi
is installed in a property with a 65A
main fuse. The property has a 10kW electric
shower and a washing machine (2.5kW).
With the Grid Limit set to say 55A, the
eddi
would reduce its load if the shower and washing
machine were on at the same time.
Group Limit
(Internal CT)
Sets the combined current limit for
several
myenergi
devices.
A property has a large PV array and a swimming
pool, three
eddi
units are installed to heat the
pool with surplus solar power using 3kW heaters.
The supply for the
eddi
units is only 40A, to be
safe a Group Limit of 35A is set.
Group Limit
(External CT)
Sets the combined current limit for
several
myenergi
devices that are
sharing a supply with another large
appliance
An
eddi
is installed to heat the hot water
cylinder in a garage which also has a washer and
a dryer (2.5kW each), the garage has a supply of
only 32A coming from the main consumer unit in
the house. If all appliances were on and there
was no limiting set, the total current would
exceed the maximum supply current.