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

Short-Circuit Indicator for overhead power lines SCI-OPL35 Pro

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 indicator represents a significant value on a phase wire with a diameter of 5–40 mm. Installation could be manual or with the help of a dielectric rod (supplied by separate order).

Short-Circuit indicator continuously measures the current parameters, calculates the value of the current amplitude at the main frequency of the network and in the case of a short circuit on the overhead line turns on the red LED.

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.

When the normal operation of the overhead power line is restored after a successful auto-reclosing, the recorder returns to the operating mode from the alarm mode, the LEDs go out, the device is ready for operation.

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 exposed 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;

Battery life in standby mode: 7 years;

Maximum continuous load current: 1000A;

Transfer of information about damage to mobile devices and (or) to SCADA system: via GSM/GPRS module and information collection server with conversion to IEC 60870-5-104 protocol;

Type of registered damage: two-phase and three-phase short circuits;

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

Diameter of high voltage cable: 5–40 mm;

Visual indication in case of short circuit: red bright LEDs;

Flashing frequency: 22 per minute;

Continuous flashing time: up to 2000 hours;

The maximum allowable short circuit current for thermal resistance: 35 kA / 4 sec;

Body material: UV stabilized polycarbonate;

Indicator visibility during short circuit alarm: ≈ 100 meters during the day; ≈ 500 meters at night;

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

Fastening mechanism: self-locking steel clip;

Product weight: up to 0.8 kg;

Overall size: 80×80×192 mm;

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