Medium-Voltage And High-Voltage Power Line Metal Oxide Arresters

Medium-Voltage And High-Voltage Power Line Metal Oxide Arresters

Our Power Line Lightning Arrester offers merchants a high-quality, reliable, and cost-effective solution for protecting electrical infrastructure against lightning strikes. With our five-year warranty, easy installation, and superior design, our lightning arrester can provide consistent protection for years to come.

Power line lightning arrester for MV and HV type

● Type: MV and HV

● Application: Power line lightning arrester for MV and HV type

● MATERIAL: Polymer housing

● Color: Grey

● High quality MOV discs/ blocks

● 100% routine tested

● KEMA, CEPRI, XIHARI test report and ISO 9001 quality certification

● Comply with GB, IEC, IEEE and other standards

Installation of power line lightning arresters at recommended locations along the line in accordance with our line simulation ensures anhanced overvoltage protection. Selecting the optimum line lightning arresters, especially in terms of their quantity and installation locations, significantly improves the reliability of the overall line system and the quality of power that it supplies

Beneficial applications

• Improve lightning protection performance

• Reduce outages caused by poor grounding and high lightning activity

• Reduce double-circuit outage rates / protect underbuild distribution lines

• Provide switching surge control - structural optimization and lower clearances

• Improve safety - prevents personal injuries and damage to equipment

• For line upgrading and compaction - reduced insulation levels

• For live work on the line -temporarily reduce minimum approach distance

• Achieve lower installation costs and losses in line system (outages)

Two different power line lightning arrester designs are available

1. Non-Gapped Line Arrester (NGLA)

Non-gapped line surge arresters (NGLA) offer a high degree of mounting flexibility and operational reliability. Depending on the tower design and the arrangement of insulators and lines, these arresters can either be installed directly on the insulators or on the tower. NGLAs limit overvoltages to value levels below the insulator withstand voltage.

Advantages of NGLA

• Most flexible solution (installation at conductor, tower, insulator etc.)

• A disconnector is installed in series that disconnects the arrester in case of thermal overload

This ensures further operation of the overhead line until a replacement can be scheduled

• Offer a very high level of protection against lightning and switching overvoltages thanks to their high energy absorption capacity

• Designed and tested to comply with the latest IEC 60099-4 standard

2. Externally Gapped Line Arrester (EGLA)

Uchi Electric EGLA line surge arresters have an external spark gap placed in series that galvanically isolates the active part of the line surge arrester from the line voltage under normal conditions.

In case of lightning, the spark gap flashes over and the arrester limits the ground fault current from several kA to a few amperes, and extinguishes the arc within 10 ms such that no circuit breaker operation at both line ends is needed, i.e. no reclosing operation.

Advantages of EGLA

• No leakage current, since the series gap disconnects the arrester part of the EGLA - metal-oxide varistor (MOV) blocks - from the system voltage under normal service conditions

• Lower arrester rated voltage required

• No disconnector and no ground lead are needed

• Suitable for multiple-circuit towers with short clearances - the highly compact design of the EGLA and the absence of a ground lead allow installation and lightning protection even on towers with very small cross-arm clearances

• Better suited for live installation

• Complete EGLA solutions with polymer insulators also available

Uchi was established in 2006 in Dongguan, China.

After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, surge protector and protective devices of lightning protection products. It ranks front in the industry and has heartquarter in Hong Kong. With its excellent technology and quality products, Uchi has won wide recognition of overseas customers. Saini Impex PVT.LTD is our authorized sole distributor in india .

China's leading enterprise of circuit protection components​

Our strength ：

A large number of product series in our factory have passed the certification of various international standards




Factory Tour​ ：

Advanced equipment, lean production

Uchi boasts with a production base that covers an area of nearly 15000 square meters.

We successively imported high-tech fully automated production equipments and high precision testing instruments and have put into production to realize the automation, large scale and standardization.

Uchi has a galaxy of hi-tech talent teams headed up by national class experts to engage in the work of product development, product quality control, sales andservice technical support, etc., and has successively obtained tens of certificates of appearance patents, utility patents and inventions.

To guarantee the quality, we successfully passed the certification of ISO9001:2008 quality management system, scientific and efficient managing mode to carry out lean production and form scientific and efficient quality control system. The products are certified with UL, CUL, TUV, VDE, CSA and SGS, RACH 73 environmentally friendly testing certifications.

Exquisite quality at customers' favor

Uchi is an export membership of Alibaba with free import and export rights. It is appraised as Guangdong Famous Star Enterprise and Dongguan Private Enterprise. Our products have doubled and redoubled to provide more kinds and high quality and reliable products and service. Our products mainly consist of:

Metal Oxide Varistor
DIP Varistor & SMD Varistor
Thermally Protected Varistor

DC-Link Capacitor for New energy vehicles supporting the HEVEV

Automotive Fuse Links for EV Plugin HEV FCEV
PTC Thermistor

NTC Thermistor

PPTC Resettable Fuse

Thermal Fuse

Auto Blade Fuse

Glass Fuses

Metal Film Resistor

Carbon Film Resistor

Cement Resistor

NTC Temperature Sensor

CDS Photoconductive Cell

Our products are widely used in New energy vehicles, home appliance, medical equipment, office equipment, communication equipment, phone battery, electronic calendar, electronic thermometer and temperature controller to cover military telecommunications, IT, automobile and consumer electronic fields.
Cooperation with good faiths to win in the market.
Excellent quality sincere service is the key to the success of Uchi.

In the future Uchi will still stick to the tenets of "Quality first, customer foremost." "First class quality, first class service and customersatisfaction" to manufacture the high quality, technically advanced and reasonable prices products. We hope to trigger with global partners the revolution in resistor products. We cordially welcome friends from home and abroad to visit us for guidance and cooperation.