16 Installation Monitoring and Protection Devices
CT (Current Transformer)
For general use a single CT clamp must be tted at the service origin to measure the main load on the property and discover any solar export.
The CT clamp provided should go around the main incoming Live (Brown or Red) meter tail with the arrow pointing in the normal direction of current ow
(Please refer to the picture on page 11).
The CT clamp wiring can be extended up to 50m using Cat5e cable or 100m using HyperConnect cable.Note:
RCD (Residual Current Device)
An RCD is a safety device used to ensure that the charger stops supplying electricity in the event that there is an electrical fault to earth.
The Hypervolt has built-in 6mA DC protection but no built-in AC protection, it must therefore be connected to an individual “A” Type Double Pole RCD or
RCBO not exceeding 30mA; complying with IEC61008-1 /IEC61009-1 / IEC60947-2 / IEC62423.
PEN Fault Protection
Hypervolt chargers have built-in PEN fault protection which means they can be connected to a P
M
E (TN-C-
S
) incoming service which shares Neutral
&
Earth in the same conductor. There is no re
q
uirement to install an additional earth rod. In the event that the Protective Earth and Neutral (PEN) conductor
becomes damaged/disconnected the Hypervolt PEN Fault system will isolate all conductors to protect the user from the potential danger a PEN fault
presents.
O
ver
h
eatin
g
S
ensin
g
Hypervolt chargers have built-in temperature sensors; in the event where it recognises there is too much heat being generated it will reduce the current
being delivered to the E
V
, this will ensure the charger is not damaged.
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