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Below are given selected technical parameters of an apparatus
and its short description.
More information can be obtained loading the
relevant information card in *.PDF format or contacting directly the
Time-Net Ltd. company.
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products in PDF format you need the program: 
Indicators of phase to phase and phase to ground short
circuits in the MV cable power networks type SMZ-3 and SMZ-4
SMZ-3 or SMZ-4 signaling device installed in medium voltage
(MV) switchgear or in medium voltage / low voltage trafo stations (MV/LV
ts) with cable networks is used for the fast localization of the cable
network damaged section. The signaling device shortens the localization
time of the cable network damaged section, decreasing the losses resulting
from not-delivering the electrical energy to the receivers.
This device
can be used in networks operating in systems with earth fault current
compensation and also in networks with the neutral point earthed through
the resistor or in insulated networks.
Signaling of fault current flow
outside the station enables the personnel to localize in simple and fast
way the last station in the cable network , through which fault current
has flown, which is equal to localizing the damaged section of the cable
line.
The set consist of:
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Current sensor(s) (current-voltage transformer(s), current
comparators) for mounting it on the MV network cable.
-
Microprocessor control unit SMZ-3 or SMZ-4 in housing for on-wall
mounting.
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Light signaling device for mounting on the outside wall of the
building in the place well visible from the access road.
The relevant device setup calculations are carried out by means of the
special software on the basis of the network topography parameters
provided by the user.
Download the SMZ-3 information card in *.pdf format
Download the SMZ-4 information card in *.pdf format
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