Earth fault and short circuit fault in power line system are always inevitable. To quickly clear these fault. Timely and
accurately detecting and locating the fault point and determining the fault type are the most priority. Intelligent fault
detecting system with wireless communication function is an undoubted cost-effective solution for fault detecting
and locating. This product adopts advanced wireless transmission technology and GPRS communication technology.
Combining with existed and matured fault indication technology. It can timely detect relevant operating status of
power line, Such as power-on, power-off, phase-deficient operation, short circuit fault, earth fault, and able to locate
fault point and determine fault type. Relevant information can be sent to monitoring centre or personnel’s mobile
phone through GPRS/Mobile telecommunication network. That can bring great convenience for monitoring power
line status and quickly troubleshooting fault by relevant personnel.
The system consists of several components: detecting terminal, transmission terminal, receiving terminal and
detect-controlling center.
1. Applicable Voltage: 10-35KV
2. Applicable Power Line: overhead wire, cable of power line
network
3. Wire Cross-section Area :25-500mm 2
4. Detectable Fault Type: Permanent, instant short-circuit fault,
metallic, non-metallic earth fault
5. Fault Alarm Current: Self-adoption
6. Action Times Available: ≥ 3000 times
7. Reset Time: Standard reset time is 12 or 24 hours. Other
reset time is configurable. Can also rest automatically if
power line is energized.
8. Applicable Ambient temperature: -40℃~ +65℃
Detecting Terminal
Detecting terminal are three fault indicators mounted on the power
line system, which consists of wireless communication system,
trigger circuit, detection circuit and etc. This fault indicator can
detect power line status, such as power-on, power-off,
phase-deficient operation, short circuit fault, earth fault. And able
to transmit all these information to the signal transmission
terminal. If power line status is normal, the detecting terminal will
keep a dormant state, and operate only if power line status
changes.
This detecting terminal has Flag and light indication function. if
short circuit fault occurs in the power line system. fault status can
be indicated intelligently. Only Flag indication method is adopted
in the daytime. However, both Flag and light indication methods
are adopted at night.
Because of the special mounting design, Mounting/removal of this
detecting terminal is extremely convenient, which can be
proceeded without system power-off. and only a long insulation
operating rod is needed.
Transmission Terminal
Transmission terminal consists of wireless communication system,
GPRS, single-chip microprocessor and power supply system. This
transmission terminal can receive information sent by detecting
terminal and transmit all these information to monitoring centre by
GPRS network.
Transmission terminal and detecting terminal should be as close as
possible. The recommend distance between them is no more than
20 meters.
Receiving terminal
Receiving terminal receives the data packet sent by transmission terminal and transmit the information to the
computers installed with associate monitoring software. Meanwhile, relevant signal (such as fault signal) can be
sent to the mobile phone of personnel as a text message through mobile telecommunication network to facilitate
the relevant personnel to collect power line status information.
Monitoring Center
Monitoring center consists of computers installed with monitoring software. This terminal has functions of
information collection, data processing, power line status indication and alarm. Computer receives the data from
signal receiving terminal. If the power line status changes, after data analysis and calculation. name of power
line and specific location will be indicated on the relevant graph, and the relevant personnel will be reminded by
twinkling.