Cov disconnectors no yog, tsis muaj load switching li
uas lub cev cais cov kab. Lawv yog tsim los rau
kab rov tav daim ntawv thov sab nraum zoov thiab tuaj yeem tsim tau
rau ntsug installation. Rau earthing thiab kaw ntawm
switchyard feem ntawm lub installation, lub earthing
switches yog muab rau ntawm disconnector. Yog xav tau.
Cov ntaub ntawv hauv qab no tau raug xa mus rau lub sijhawm npaj ntawm qhov kev qhia tshwj xeeb no. Thaum muaj kev tsis sib haum xeeb, cov kev cai ntawm qhov kev qhia tshwj xeeb no yuav tsum ua ntej.
IEC 129: 1975: Alternating Current Disconnectors (Isolators) thiab Earthing Switches
IEC 60694: 2002 Cov Lus Qhia Tshwj Xeeb rau High Voltage Switchgear thiab Controlgear
BS 729: Kub dip galvanized txheej rau cov khoom hlau thiab hlau
IEC 62271-102
Isolator (Disconnector) - ib lub tshuab hloov khoom siv uas muab, nyob rau hauv txoj hauj lwm qhib, ib qho kev sib cais nyob rau hauv raws li cov kev cai ntawm kev nyab xeeb hluav taws xob.
KEV PAB CUAM
Lub tshuab cais tawm yuav tsum tsim nyog rau kev ua haujlwm tsis tu ncua sab nraum zoov hauv thaj chaw sov sov ntawm qhov siab txog li 2200m saum toj no hiav txwv theem, av noo txog li 90%, qhov nruab nrab qhov kub thiab txias ntawm +30篊 nrog qhov tsawg kawg nkaus ntawm -1篊 thiab qhov siab tshaj ntawm +40篊 thiab hnyav saline tej yam kev mob raws ntug dej hiav txwv.
4.2. Tsim thiab tsim
4.2.1 Lub Isolator, Solid Link yuav tsum tsim thiab tsim ua raws li IEC 129 thiab IEC 60694.
4.2.2 Txoj kev sib cais yuav tsum yog ntawm qhov qhib ntsug, tsim los rau kev ua haujlwm ib theem. Nws yuav tsum tau yooj yim tshem tawm thiab hloov los ntawm kev siv lub pas nrig ua haujlwm.
4.2.3 Qhov kev sib txuas sib cais yuav tsum muab ob npaug rau cov plooj (porcelain insulators) kom haum raws li qhov yuav tsum tau muaj voltage thiab mounted ntawm kub dipped galvanized steel nyob rau hauv lub hauv paus haum rau ntsug mounting.
4.2.4 Qhov kev sib cais yuav tsum tau npaj kom txhua chav nyob ntawm nws tus kheej ntawm lub kaum sab xis. Nws yuav tsum tau muab ua tiav nrog lub kaum sab xis thiab cov khoom siv tsim nyog rau mounting ntawm 'U' hom steel channel. Cov duab kos yuav raug xa mus yuav tsum qhia tag nrho cov mounting txoj haujlwm.
4.2.5 Lub tshuab cais tawm yuav tsum tsim kom muaj nyob rau hauv txoj haujlwm qhib tag nrho, nws yuav tsum muaj kev sib cais hluav taws xob txaus ntawm cov neeg sib cuag ntawm txhua theem. Nws yuav tsum ua raws li qhov yuav tsum tau ua raws li ib qho kev cais tawm rau kev nyab xeeb.
4.2.6 Txhua qhov steel yuav tsum kub dip galvanized rau BS 729. Qhov tsawg kawg nkaus txheej ntawm galvanizing yuav tsum yog 80 microns.
4.2.7 Cov khoom txuas yuav tsum raug tshem tawm los ntawm kev siv lub pas nrig ua haujlwm.
4.2.8 Tag nrho cov khoom nqa tam sim no ntawm lub tshuab cais tawm yuav tsum ua los ntawm cov khoom siv hluav taws xob siab.
4.2.9 Lub cais yuav tsum tau haum nrog clamp connectors rau Aluminium (ACSR) neeg xyuas pib ntawm Aluminium (ACSR)conductor txog li 18.2 hli txoj kab uas hla.
Qhov ntsuas ntawm qhov kev sib cais tag nrho yuav tsum yog raws li hauv qab no: -
Rated voltage
36kv ua
Rated zaus
50 Hz
Rated xob laim impulse withstand voltage
200 kV ua
Rated zog zaus withstand voltage, qhuav
9 5kv
Rated tam sim no
400 amp ua
Lub sijhawm luv luv tiv thaiv tam sim no rau 3 sec, min.
18.0 kA
Yam tsawg kawg creepage nrug ntawm insulators
900 hli
Cim npe nrov: disconnector hloov 11kv, Tuam Tshoj disconnector hloov 11kv manufacturers, lwm tus neeg, Hoobkas