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Polymer Insulator

◈ Characteristics of Polymer Insulator

The main element of polymer insulator displays very excellent properties in terms of heatproof

performance, chemical stability, electrical insulation, wear resistance and glossy performance compared

to general organic rubbers thanks to its both sides nature-organic and inorganic properties expressed

simultaneously by silicone.

◈ Merits of Polymer Insulator

1. Light weight : Lighter than porcelain insulator, providing easy work and shortened period of

construction(reducing power interference by shortened electricity failure time)

2. Elastic body : Easier handing and transportation by reduced damage from careless

3. Weather resistance : Reducing maintenance cost without need for washing or cleaning

4. Water repellency : Excellent insulation performance with water-resistion properties

◈ Product Picture

◈ Specification

ITEM 15kV 25kV 35kV 69kV

Dimension

Section length(L) 330±15mm 445mm 539mm 888mm

Leakage distance 439mm 642mm 850mm 2037mm

Min. arcing distance 215mm 300mm 340mm 701

Electrical Rating

Low frequency dry flash over voltage test

97 143 168 260

Low frequency wet flash over voltage test

67 115 137 210

Critical impulse flashover

voltage test

Positive 173 217 258 425

Negative - 304 340 425

Radio influence Voltage test

Max. Voltage test 1(Max) 1(Max) 1(Max) 3 Phase to earth 20 25 25 30

Mechanical Rating

Failing load test 700kgf 700kgf 700kgf 1000kgf

Number of sheds 4 6 8 15

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LIGHTNING ARRESTER

◈ Introduction & Installation

Polymer-housed arresters are used for limiting the overvoltage due to a lightning and switching

surge to the required protective level. The superior protective characteristics of arrester provide level.

The superior protective characteristics of arrester provide excellent overvoltage protection for

distribution system equipments.

Features of arresters include,

• Light weight and easy installation.

Excellent discharge capacity compared with porcelain-housed arrester

• Verified the performance in contaminated environments.

• Insulated mounting base and ground lead isolator,

• wildlife protector available(optionally).

◈ Product Picture

◈ 10kV Electrical Character

TYPE Rated

Voltage(kN)

MCOV (kV)

Steep Current Impulse

Switching Current Impulse

Lighting Current Impulse

High Current Impulse

KW10A-9 9 7.65 28.5 23.1 27 100

KW10A-12 12 10.2 38.5 30.8 69 100

KW10A-15 15 12.7 47.5 38.5 45 100

KW10A-18 18 15.3 57.0 46.2 54 100

KW10A-21 21 17.0 66.5 53.9 63 100

KW10A-24 24 19.2 76.0 61.6 72 100

KW10A-27 27 21.9 85.5 69.3 81 100

KW10A-36 36 29.0 114 92.4 108 100

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INTERRUPTER SWITCH

◈ Introduction

Interrupter switch(LBS) is a three

phase transmission part operated swith

utilized to sectionalize or isolate circuits

on electrical distribution systems up

through 25.8KV, the distribution switch

is rated for 600 amperes continuous

current and 40.000 amperes momentary.

◈ Specification

Items Data Origin Rated voltage(KV) 24/25.8

Han Sung/ Korea

Rated current(A) 600/630

Momentary(KA) 40

1 sec(KA) 25

Rated frequency(Hz) 50/60

Withstand voltage(1 Min, Dry)(KV) 70

Impulse withstand voltage(KV) 150

Support insulator (polymer) TR-208

Weight(Kg) 90

Tolerance ±5%

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YOUNG JIN www.globalyj.com

Over load, short circuit protection DC

1.25 rated load current 60sec

1.5 rated loads current 5sec

over load protection action.

≥3 Rated load current short circuit protection action.

AC Fuse

Quiescent current ≤ 6 mA

Charge circuit voltage drop ≤ DC 0.26V

Load circuit voltage drop ≤ DC 0.15V

Over voltage protection 17V

Work temperature Industry stage：-35℃ to +55℃；Commercial stage -5℃ to +50℃

Boost charge voltage 14.6V； (keep 10min)

Direct charge voltage 14.4V； (keep 10min)

Float charge voltage 13.6V

charge return voltage 13.2v

Temperature compensation -5mv/℃/2v(Boost charge, Direct charge,

Float charge, charge return voltage);

Lower voltage indicate 12.0V

Over discharge voltage 11.1V（no load）- modified voltage by discharge rate of

battery； ×2/24V

Over discharge return voltage 13.1 V

Over-discharge pressed return voltage 12.4 V

DC Control mode PWM charge mode; modified discharge voltage by the discharge rate

Description Rated Power Voltage Using Time

Fluorescent lamp 1EA 7 W 12Vdc 50 Hour≒

Radio 1EA 50W 12Vdc 7 Hour≒

14” Notebook 75W 220Vac 5 Hour≒

19” Color TV 160W 220Vac 2 Hour≒

Desktop Computer with Monitor 500W 220Vac 1 Hour≒