Short-Circuit Indicators for overhead power lines SCI-OPL35 Pro S

Short-Circuit Indicators for overhead power lines SCI-OPL35 Pro S

The product is designed to determine the branches, sections of overhead power lines, including the completion of the circuit, primarily to networks of the 6-35 kV class with an island or countervailing neutral operation mode.

The short-circuit indicator SCI-OPL35 Pro S continuously measures the parameters of current and voltage, calculates the value of the current amplitude (increase in current above a predetermined level and the appearance of higher harmonics) and voltage at the main frequency of the network and at multiple frequencies. In the event of an emergency on the overhead line, an accident type occurs and turns on the corresponding LED indication of an emergency (red color – interphase short circuit, blue color – single-phase short circuit), and also turns the orange point of view blender (flag on the indicator) towards the observer.

The indicator, through the built-in GPS/GSM systems can transmit a signal and inform about the damage and its location to the information collection server with subsequent conversion and retransmission in the IEC 60870-5-104 protocol to the NCC SCADA system. On the information collection server, the function of memorizing and storing information about registered damages in the amount necessary for the operational personnel (25–100 accidents) can also be implemented programmatically. If there is no SCADA system, then the information can be transferred to mobile devices of operational and/or operational and maintenance personnel.

The power indicator is supplied from DC sources. The internal current source does not require recharging during the entire service life.

The power supply can be replaced with a similar one if such need arises. You will be notified about it by flashing yellow LED during operation of the device.

The indicator is designed for continuous round-the-clock operation in the open air under the following conditions: ambient temperature from minus 40°С to plus 60°С; atmospheric precipitation: rain, snow, dew, frost. Indicator has a degree of protection against environmental influences IP67 (requirements for equipment subject to strong atmospheric influences and water) in accordance with GOST 14254-96 (National Standard).


Voltage class: 6–35 kV;

Line operation mode: dead-end/radial with branches;

Neutral operating mode: isolated, compensated;

Maximum continuous load current: 1000A;

The minimum value of the increase in current in case of short circuit for the operation of the register: 20A;

The minimum value of the current increase in the event of a short circuit fault to trigger the register: 0,5A;

Visual indication for interphase short circuit or a single-phase ground fault: red color for interphase short circuit, blue color for single-phase ground fault;

Transfer of information about damage to mobile devices and (or) to the SCADA system: through a communication terminal and an information collection server with conversion to the IEC 60870-5-104 protocol;

Continuous flashing time: up to 2000 hours;

The maximum allowable short-circuit current for thermal stability: 35 kA/4 s;

Switching to the operating mode from the indication mode: after the expiration of a customizable time interval , after the restoration of the normal operation mode of the overhead line;

Power supply: two independent power circuits on two power sources (Li-ion, Li-Fe) to ensure the operational mode of operation with recharge from solar panels and transformer current of the overhead line load;

Setting the indicator, reading the settings and parameters of the current overhead line mode: via radio at a frequency of 433 MHz via the remote control (optional) at a distance of up to 100 m;

Battery life in standby mode: over 7 years;

Visibility of signals: ≈ 100 meters during the day; ≈ 500 meters at night;

Visual viewing angle during alarm: 360 degrees;

Diameter of high voltage cable: 5–40 mm;

Fastening mechanism: self-locking steel clip;

Product weight: up to 0.8 kg;

Overall size: 80×80×192 mm;

Mounting and dismantling of the indicator: directly on the wire.