Ule ule maka 132KV GIS
Nkeji edemede 6.3.4 nke IEC 62271-1:2017 "General Requirements for High-Voltage Switchgear and Controlgear" na-ekwu n'ụzọ doro anya na akụrụngwa nwere voltaji nke 123 kV (nke a na-ejikarị na sistemụ 132 kV) ga-ezute 230 kV ike ugboro na 550 kV. IEC 62271-200 na-agbakwụnye ma kọwapụta ihe mkpuchi gas pụrụ iche na ihe nyocha nke mwepu akụkụ chọrọ maka GIS.
Voltage ule maka AC na-anagide voltaji nke GIS (Gas Insulated Switchgear) ga-agbasorịrị "Standard for Acceptance Tests of Electrical Equipment in Electric Installation Projects" (GB50150-2016) na "Ntuziaka maka On{2}saịtị na-anagide voltaji na ihe mkpuchi gas nke mebere{6} Ngwa mgbanwe" (DL/T555-2004). N'ozuzu, voltaji nnabata nke ụlọ ọrụ bụ 80% nke voltaji ule ụlọ ọrụ (n'ọnọdụ pụrụ iche dị ka ihe achọrọ nke usoro mgbochi ihe mberede nke State Grid, enwere ike ịbawanye ruo 100%, mana nke a abụghị ọnọdụ nkịtị).
The gosiri voltaji (Uₙ) nke 132kV GIS bụ 132kV, na kacha arụ ọrụ voltaji (Uₘ) bụ mkpokọta 145kV (dị ka GB156-2017 "Standard Voltage", kacha arụ ọrụ voltaji kwekọrọ na 132kV bụ 145kV).
Dị ka ọkọlọtọ si kwuo, voltaji ule ụlọ ọrụ (Uₜₑₛₜ) na-abụkarị 1.8-2.0 ugboro voltaji arụ ọrụ kachasị (ụkpụrụ dị iche iche nwere ike ịdị iche iche), voltaji nnabata nnabata ụlọ ọrụ bụ 80% nke uru ụlọ ọrụ.
Inweta oke voltaji na-arụ ọrụ nke ugboro 1.86 dị ka ihe atụ (tụ aka na uru maka 110kV GIS: kacha arụ ọrụ voltaji nke 110kV bụ 126kV, na factory ule voltaji bụ 230kV=126 × 1.86):
voltaji ule ụlọ ọrụ:
U factory=145 × 1.86 ≈ 270 kV (uru dị irè, 1 nkeji)
voltaji nnwale ọrụ:
Ị na-enye ọrụ=270 × 0.8=216 kV (uru dị irè, nkeji 1)