Load Break Switch & Surge Arrester

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[INQ. NO. 2206M03] Dong Yang EEC Co., Ltd., established in 1998, has focused on developing line-protection switches for the Korea Electric Power Corporation (KEPCO), beginning with inspection of the KEPCO distribution line protector.
As a result, Dong Yang EEC has become one of the few companies in Korea to have developed eco-friendly products such as epoxy insulated load break switches (pad mounted), polymer lightning arresters with lead wire, and eco-friendly pole mounted switches, as well as pad-mounted SF6 gas insulated load break switches, pole-mounted load break switches and automatic sectionalizing switches.
In addition, by establishing an R&D center, Dong Yang EEC ceaselessly strives to implement strategic policies and achieve quality-system assurance.


Eco Load Break Switch (LBS)
This was designed to improve the defects in the SF6 gas insulated load break switch and to enhance electric power distribution lines. Eco LBS consisting of cycloaliphatic epoxy material, is designed to be an explosion-free product, unlike SF6 gas insulated LBS with low gas pressure condition.
Eco LBS pursues not only the protection of the environment but also overcomes its fatal disadvantages. Eco LBS uses a vacuum interrupter and enhanced its switching capability, as well as eliminating any possibility of explosion by adopting the solid dielectric method. In addition, it is free from periodic gas leaks and gas refilling tests.

Polymeric Housing Surge Arrester
This product is a kind of overvoltage limitation. When overvoltage occurs, the voltage between two terminals of the surge arrester does not exceed the designated value, thus ensuring that the electric apparatus avoids damage caused by overvoltage, and thus enables the system to return to normal condition rapidly.
Dong Yang EEC’s polymeric housing surge arrester is a gapless-type that uses a ZnO element with excellent non-linear resistance coefficient characteristics.
With the ZnO element, the operation characteristics for multiple lightning and multiple surge, and anti-pollution features have been significantly improved. In addition, operating duty is available under a large current corresponding to discharge to withstand current rating.


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Load Break Switch

https://korean-machinery.com///inquiry[INQ. NO. 2007M03] BH SYSTEM’s BR-10 series switch control connected to a load break switch can be installed in a medium voltage distribution network. The switch control, through the built-in voltage and current sensors of the LBS, performs monitoring of distribution networks, fault detection, auto-sectionalizing, and load shedding functions. Furthermore, utilities, by using separate communication networks and automation system, can remotely monitor and control the equipment.
The LBS is installed together with the recloser, and through subdivided fault section detection and separation, minimizes power outage sections.
These are the most vital pieces of equipment together with the recloser when it comes to improving supply reliability among customers and building automation systems.
The load break switch for overhead lines is divided into SF6 or solid insulated type depending on the insulation method.
Also, it is divided into motorized type (operated by electrical signal) and manual type (operated by the operator).
The motorized LBS is equipped with voltage and current sensors to monitor distribution networks.
The LBS is structured to be operated by a driver with a single spring, and has constant opening and closing times.
For the SF6 insulated type, materials with excellent electrical properties are used at the tulip type contact point, and thus, high mechanical and electrical operation characteristics, and stability are achieved.
The load break switch is used for load shedding to maintain the power quality at the point of the branch lines or customers.
This product is able to connect the two lines at the normally open point. This switch is for an open loop network, but can also be applied to a radial network, which has an alternate source.
BH SYSTEM was founded in 2004 by its core engineers, who have a great deal of experience in the distribution automation field. Based on its extensive experience and specialized technology, the company focuses on controls for distribution automation or distribution network protection, as well as systems related to these controls.
BH SYSTEM strives always to ensure customer satisfaction by reflecting their requests and supplying more technologically advanced products.

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Automatic circuit recloser & load break switch

BH System’s automatic circuit recloser is a SF6 gas-insulated type. It has three ratings − 12kV, 24kV and 36kV. Recloser has built-in voltage sensors in each bushing as well as current sensors in each phase on the source side. The BR-10R recloser control is the line protection device which can interface with automatic circuit reclosers installed in distribution substations and distribution lines.

https://korean-machinery.com///inquiry The control is the core device when it comes to distribution line protection and automation. The BR-10R recloser control provides monitoring reclosers and self-status, distribution line status and detecting faults by current and voltage measurement. The control also supplies line protection, Auto-reclosing, recording history data and fault waveforms, and remote controls. In addition, it provides the operating program and the local control panel for sett ing up devices on site as well as spaces and auxiliary power for modem installing. In the control, the magnetic actuator controller and capacitor bank are fi tt ed in the enclosure for easy maintenance.

Automatic-circuit-recloser-&-load-break-switch Load Break Switch is SF6 gas-insulated and pole-mounted type. The switch has a stable spring toggle mechanism. The switch has built-in voltage sensors in each bushing as well as current sensors in each phase on the source side. The BR-10S automatic switch control is a device to interface with the load break switch. LBS and the control are installed on overhead distribution lines. The control is able to be used as a protection device to isolate faulty sections on distribution lines.

 
 
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Pole-mounted SF6 gas-insulated load break switch

[Serial No. 2014-B-009] Dong Yang EEC, since its establishment in 1998, has focused on developing electricity track protection products. Dong Yang EEC produces automatic electric
power distributor, which is famous for high technology, reliability, stability, durability, accuracy and economic feasibility. Dong Yang EEC acquired ISO9001, ISO14001 to realize quality management and eco-friendly production.

Pole-mounted-SF6-gas-insulated-load-break-switch https://korean-machinery.com///inquiry

Dong Yang EEC has already developed a solid cooperation relationship with KEPCO (Korea Electric Power Corporation). Dong Yang EEC makes constant utmost efforts to release new highly attractive solutions while fully catching up with the everchanging market demands. Dong Yang EEC is now committed to producing such top-quality products as polemounted SF6 gas-insulated load break switches, pad-mounted SF6 gas-insulated load break switches, pad-mounted solid/epoxy-insulated load break switches, and SF gas automatic sectionalizers.

Among them, for this year, Dong Yang EEC first placed its pole-mounted SF6 gas-insulated load break switch as the leading contender for discovering matching client companies. As electricity track protection product, it features a simple and strong toggle mechanism. Especially stainless steel-sealed enclosure is applied in pursuit of providing semipermanent life. Now, potential buyers are steadily appearing, mostly from the USA, some European nations, and some Asian countries.

 
 
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