Technical

Composite Insulators: Tsim, Cov Khoom Siv & Kev Siv Tseem Ceeb hauv Cov Hluav Taws Xob

Jun 20, 2025 Tso lus

Composite insulatorssawv cev rau kev nce qib tseem ceeb hauv kev siv hluav taws xob rwb thaiv tsev. Tsis zoo li cov plooj (porcelain) lossis iav insulators, lawv siv cov khoom siv ntau yam - tsim kom ua tau zoo. Nov yog qhov kev faib tawm ntawm lawv cov khoom tseem ceeb thiab qhov zoo:

1. Cov Ntsiab Lus Txhais & Cov Ntsiab Lus
Ib qho insulator yog ib hom tshwj xeeb ntawm polymer insulator uas muaj tsawg kawg yog ob yam insulating ntsiab lus:

Core:Lub hauv paus txheej txheem.

Housing (Weather Sheds):Sab nraud tiv thaiv txheej, sib sau ua ke nrog hlau kawg fittings.

(Faj seeb: Ib qho polymer insulator yog txhais tias yog ib qho insulator feem ntau tsim los ntawm polymer-raws li cov ntaub ntawv).

 

2. Cov Tub Ntxhais: Mechanical Strength Foundation

Muaj nuj nqi:Ua hauj lwm raws li tusinternal insulating tivthaiv, engineered los dais lub insulator tus neeg kho tshuab loads (nruj, compression, dabtsi yog khoov).

Kev tsim kho:Feem ntau yog tsim los ntawm:

Fibers (piv txwv li, iav) embedded nyob rau hauv ib tug resin matrix, ua ib Fiber-Reinforced Plastic (FRP).

Homogeneous insulating khoom (piv txwv li, ceramic lossis khoom resin).

Core Material Classifications:

Polymeric Composite Insulator (Standard Composite Insulator):Ob lub hauv paus thiab vaj tsev yog tsim los ntawm cov ntaub ntawv polymer.

Hybrid Composite Insulator:Features ib tug tseem ceeb ua los ntawm homogeneous khoom zoo li ceramic.

Lwm Lub Npe: Feem ntau hu ua Non-Ceramic Insulators (NCI).

 

3. Lub Vaj Tsev ( Huab cua Sheds): Ib puag ncig & hluav taws xob Shield

Muaj nuj nqi:Ua raws li covsab nraud insulating tivthaiv, muab ob txoj haujlwm tseem ceeb:

· Creepage Distance:Xyuas kom tsim nyog cov hluav taws xob rwb thaiv tsev txoj kev raws li qhov chaw.

· Core Protection:Tiv thaiv cov tub ntxhais los ntawm kev puas tsuaj ib puag ncig (moisture, UV hluav taws xob, muaj kuab paug, tshuaj lom neeg).

Kev tsim khoom:Lub tsev tuaj yeem tsim los ntawm:

Txhim kho ib tus neeg los rau hauv lub hauv paus (nrog lossis tsis muaj qhov nruab nrab sheath).

Moulding los yog txhaj cov vaj tsev (raws li ib chav tsev lossis hauv ntu) ncaj qha mus rau hauv cov tub ntxhais.

Khoom siv:Siv high -cov polymers ua tau zoo rau cov kav ntev, suav nrog:

· Elastomers:Silicone Rubber (feem ntau ntau), Ethylene Propylene Diene Monomer (EPDM).

· Resins:Cycloaliphatic Epoxy cob.

· Fluoropolymers:Polytetrafluoroethylene (PTFE).

 

4. Kev xaiv cov khoom: Cov qauv kev lag luam

Core:Cov khoom siv tseem ceeb tshaj plaws yogEpoxy-Impregnated iav Fiber Reinforced Yas (FRP/GFRP/GRP Qws). Rau hollow- qauv tsim (piv txwv li, chaw nres tsheb ncej, bushings),Epoxy-Impregnated iav Fiber Reinforced Tubesua hauj lwm.

Housing: Silicone Roj Hmabyog dav nyiam rau nws tshwj xeeb hydrophobicity thiab tsis kam mus taug qab thiab yaig.

 

5. Qhov Zoo Tshaj Plaws Tseem Ceeb: Lub Multi-Cov Khoom Siv
Lub hauv paus superiority ntawm composite insulators nyob rau hauv lawv lub tswv yim tsim:

Traditional Insulators (Porcelain / iav):Siv aib leeg - khoom siv. Ib qho khoom siv yuav tsum tau ua tib zoo saib xyuas txhua yam kev ntxhov siab (compression, nro, khoov) thiab muab cov hluav taws xob nkag mus deb.

Composite Insulators:Ua haujlwm amulti-cov ntaub ntawv system uas cais cov haujlwm tseem ceeb:

· Core:Optimized raumechanical zog thiab load- bearing.

· Tsev nyob:Optimized rauhluav taws xob kev ua tau zoo (creepage)thiabkev tiv thaiv ib puag ncig.

Txhua yam khoom ua nws qhov tshwj xeeb ua haujlwm zoo, ua rau muaj kev ua tau zoo tag nrho, sib dua qhov hnyav, txhim kho kev ua qias tuaj, thiab txhim kho kev ntseeg tau.

 

6. Evolution: Composite Bushings
Kev ua tiav pov thawj ntawm cov khoom siv hluav taws xob sib txuas hauv cov kab sib txuas thiab cov chaw sib txuas tau txhawb nqa txoj kev loj hlobComposite High-Voltage Bushings. Cov no siv cov resin-impregnated fiber tube ua lub ntsiab insulating. Cov raj no yuav siv tau ib leeg lossis, rau kev ua haujlwm sab nraum zoov kom zoo dua qub, overmoulded nrog cov khoom siv roj hmab sab nraud (tej huab cua).

 

7.Primary Composite Insulator Classifications
Tam sim no manufactured composite insulators poob rau hauv plaub pawg loj, txhua tus tsim los rau cov luag hauj lwm tshwj xeeb:

· Suspension Insulators:Siv feem ntau hauv cov kab hluav taws xob siv hluav taws xob, dai ntawm cov qauv los txhawb cov neeg siv khoom (xws li, Daim duab 1-1a).

· Kab Post Insulators:Ua haujlwm ntawm cov kab xa khoom, cov chaw nkag nkag, lossis ua cov risers, mounted vertically lossis ntawm lub kaum sab xis ntawm cov ncej lossis cov qauv (xws li, Fig 1-1b).

fig 1-1Suspension Insulators Line Post Insulators

Daim duab 1-1

(a) Ncua Insulators (b) Kab Post Insulators

1- Sab saum toj haum; 2-Lub vaj tsev / huab cua Sheds; 3-FRP qws tub ntxhais; 4-Khoom haum

 

· Chaw nres tsheb Post Insulators:Muab cov qauv kev txhawb nqa thiab hluav taws xob rwb thaiv tsev nyob rau hauv substations thiab switchyards rau cov khoom xws li disconnect keyboards, busbars, thiab circuit breakers (xws li, Fig 1-2).

Fig 1-2 Composite Post Insulator IOC-500

ABC

Daim duab 1-2

Composite Post InsulatorIOC-500
(a) Product Diagram (b) Component Diagram (c) Structural Diagram

1 - Composite ncej insulator; 2 - Rig beam; 3 - Tiv thaiv fittings; 4 - Fiberglass resin pas nrig;
5 - Huab cua-cov vaj tse tiv taus; 6 - Xaus haum

 

· Hollow Core Insulators:Feature ib lub hauv paus raj qauv, ua rau lawv ua raws li insulating vaj tse los yog bushings rau ntau yam hluav taws xob apparatus (xws li, daim duab 1-3).

Fig 1-3Composite Hollow Core Insulator

Daim duab 1-3

Composite Hollow Core Insulator

1- Sab saum toj haum; 2-Lub vaj tsev / huab cua Sheds; 3-FRP qws tub ntxhais; 4-Khoom haum

 

8. Cov ntawv thov tseem ceeb

Transmission & Distribution Lines:

· Suspension Insulators:Tsim cov pob txha ntawm high-voltage overhead kab.

· Kab Post Insulators:Siv dav hauv nruab nrab -voltage tis networks thiab substation kab nkag.

Substations & Switchyards:

· Chaw nres tsheb Post Insulators:Cov ntsiab lus tseem ceeb hauv:

Disconnect Switches:Muab cov qauv kev txhawb nqa thiab rwb thaiv tsev rau cov hniav hloov pauv (xws li, Daim duab 1-2 qhia tau hais tias tus ncej-hom disconnect hloov siv cov chaw nres tsheb sib txuas rau kev txhawb nqa tsheb npav).

Kev them nyiaj yug tsheb npav:Insulating thiab txhawb nqa cov npav npav.

Kev them nyiaj yug Circuit Breaker:Muab rwb thaiv tsev rau breaker ncej.

· Hollow Core Insulators:Ua hauj lwm raws li lub hauv paus insulating tivthaiv nyob rau hauvComposite Bushingsrau:

Transformers:(High-Voltage & Low-Voltage Bushings)

Switchgear:(Circuit Breakers, GIS Bushings)

Cov cuab yeej Transformers:(Tam sim no Transformers - CTs, Voltage Transformers - VTs)

Cable Terminations

Surge Arresters (Lightning Arresters)

Ntau yam khoom siv hluav taws xob:Ua raws li ib tugsab nraud insulating vaj tse los yog bushing(eg, Fig 1-4).

Fig 1-4The application of composite insulators in outdoor installations

Daim duab 1-4

Daim ntawv thov ntawmcomposite insulatorshauv kev teeb tsa sab nraum zoov
(a) Muab qhab nia nplhaib bushing rau lub ntsiab transformer; (b) Surge arrester;

(c) LUB NEEJtuag tank Circuit Court breaker; (d) Tam sim no transformer; (e) Lub hwj chim transformer;
(f) Qib nplhaib bushing rau faib transformer (420/170kV);
(g) Kev txiav tawm cable (170kV)

 

Surge Arresters & Disconnectors:Composite insulators yog ib qho tseem ceeb rau cov tsev nyob sab nraud ntawm cov niaj hnub polymer-cov tsev nyob surge arresters (piv txwv li, daim duab 1-5) thiab muab rwb thaiv tsev rau disconnect tus ncej.

Fig 1-5 composite housings

Daim duab 1-5

Ob chav ntawm 500kV kis tau tus mob surge arresters nrogvaj huam sib luag, ntsia raws li hom kev ncua ntawm txoj kab (raws li qhia tau muab tshem tawm hauv daim duab)

 

Rau cov khoom specifications los yog kev sab laj:inquiry@tcipower.com

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