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Cable control system

Cable control system

Product catalog summary

Overview: The Cable Control System is an innovative monitoring solution for power cables, designed to measure insulation resistance in traction networks up to 1000V DC. It aims to prevent emergencies by detecting degradation in cable insulation properties.

System Structure: The system includes input signals, a signal processing unit, a central processing unit, power sources, and controls for settings input. It can operate autonomously or integrate with the SMTN-3 monitoring system via optical fiber, ensuring electrical isolation and safe usage.

Functionality: The primary function is to signal when insulation properties fall below set thresholds. It provides real-time measurements and long-term monitoring of insulation resistance, allowing for early detection of critical degradation.

Installation and Safety: The module is powered by the traction network and typically installed in a switchgear busbar compartment. It features a housing made of insulating, halogen-free material that meets UL94 V-0 fire safety standards.

Monitoring Principle: The system measures cable screen voltage relative to earthing and compares it to a reference voltage. It uses a resistive bridge to calculate insulation resistance, signaling degradation when values drop below settings.

Technical Specifications: The system supports discrete outputs with NC/NO relay contacts for various alarms, including voltage presence and insulation damage. It features a fiber optic interface for data transmission to the SMTN-3 module, with a rate of 38400 Bit/s.

Contact Parameters: The system provides contacts with a maximum voltage of 400 V AC/250 V DC, a rated load current of 10 A, and a breakdown voltage of up to 5000 V.

Connection Diagrams: The document includes diagrams illustrating the connection of the cable control system to switchgear and other components, highlighting the system's integration into existing infrastructure.

Catalog excerpts

CABLE CONTROL SYSTEM CITY ELECTRIC TRANSPORT ■ RAILWAYS ■ METRO ■ INDUSTRY

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CABLE CONTROL SYSTEM

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Cable control system is an innovative system for power cables integrated monitoring based on PLUTON current developments. Cable control system is provided for internal and external cable insulation resistance values measurement in traction networks up to 1000V DC. The aim of system implementation is to prevent emergency situations in case of power cable insulation properties degradation. Cable control system was designed as a component of traction network monitoring and protection system SMTN-3, but due to discrete signals for control and signaling cable control system can be operated autonomously...

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Input signals Internal insulation Screen— External insulation Earthing (return wire) ▲ Diagram of cable connection to cable control system module Monitoring principle is based on cable screen voltage measuring relative to earthing, and comparing of this potential to a reference one. Reference voltage is set with resistances built in the module. Cable internal and external insulation resistance is the branch of resistive bridge. The second branch consists of built-in resistors with known ratings. Recalculation of voltage values on the bridge branches in resistances is made according to algorithms...

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Main technical data of cable control system CABLE CONTROL SYSTEM Discrete outputs NC/NO relay contacts act as output signals. Contacts parameters are given in the table. The module provides three pairs of contacts for the following alarms: • voltage presence (under network voltage from +430 to +1000 V); • external insulation damage; • internal insulation damage; • cable insulation calculated resistance decrease below the setting. Interface output Interface output is provided for serial, asynchronous data transmission via fiber optic cable to SMTN-3 central processing module. Fiber optic components...

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DIAGRAMS OF CONNECTIONS Operation busbar Reserve busbar Cable control system Input signals ▲ Diagram of cable control system connection to Input signals supply cable X1 Cable control system ▲ Diagram of connection to cable control system module CABLE CONTROL SYSTE

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Input signals supply cable X1 Cable control system Unetwork 50 kOm return cable X3 Input signals Cable control system ▲ Diagram of connection to cable control system module CABLE CONTROL SYSTEM

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JSC «ETK «PLUTON» Phone: +7(499)391-49-08 +7 (495) 201-06-06 Fax: +7 (499) 579-81-67 Address: 7, Semyonovskaya square, office 613 Moscow, 105318 The Russian Federation E-mail: [email protected] JSC «ETK «PLUTON». All rights reserved Cable control system 1.0-19-engl

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Cable control system

Cable control system

Catalog excerpts

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