Heavy ice coating can damage transmission lines and towers, ultimately leading to a power supply outage in partial or the entire grid network. To guarantee the safe operation of the power system in severe weather, NR Electric provides consumers with the PCS-9590 fixed DC de-icer and the PCS-9591 relocatable DC de-icer for the protection of transmission lines. The DC output voltage is adjustable. Different DC short-circuit currents can be supplied according to the conductor’s diameter and length. In addition, the de-icer device can also be used as SVC to quickly compensate reactive power, stabilize system voltage and improve power quality.
The use of thyristor rectifiers can reduce the impact on power system during ice melting and ease the switch-over operations.
The DC de-icer device supports large current and large angle continuous stable operation. It is applicable to tranmission lines with different conductor diameters and lengths.
The PCS-9590/9591 DC de-icer can adopt container type installation and valve hall installation, effectively saving the land resource, shortening the site construction period and easing the equipement transportation.
The device adopts reliable and compact structure with watercooling system and compact valve banks.
The PCS-9590/9591 is equipped with 6 phase seg circuit breakers enabling the automatic switchover among various ice melting modes and realizing the balanced ice melting for AC lines.
NR Electric also provides the high performance control and protection system for DC de-icing melting characteristics has been developed and features and high reliability.
Primary system of DC ice melting device requires only very small number of operations to realize SVC function.
Consulting and System Planning
Conceptual & Detailed Design
Manufacturing & Testing
Engineering & Procurement
Site construction, installation
Onsite Testing & Commissioning
Operation and maintenance services