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Insulation system:&n錢件bsp;
External insulation and int月頻ernal insulation Vacuu鄉服m insulation is adopted林頻 for internal insulation. A校東s for external insulatio都時n, pollution-resistant outdoor epox民南y resin, silicon rubb行外er or ceramic shell with ant算西i-aging performance and g影歌ood resistance to cor的音rosion is used for external ins在機ulation. All live parts i照河n the outdoor box type vacuum circuit 少分 breaker are sealed in the 鐘費SF6 gas chamber. Vacuum extinction is兒笑 adopted and zero ga從年uge pressure SF6 gas is used for sup光一plementary insulation. The equi書男pment can offer maintenance-f筆公ree operation for 15 yea東員rs and is explosion-遠家proof.
|
S/N |
Item |
Unit |
Parameter |
|
|
1 |
Switch cabinet |
|||
|
2 |
Item |
|
Circuit-breaker |
load switch |
|
3 |
Rated voltage |
kV |
12 |
|
|
4 |
Power frequency 笑睡withstand voltage |
kV |
42/48 |
|
|
5 |
Lightning impulse withstan校海d voltage |
kV |
75/85 |
|
|
6 |
Rated current |
A |
630 |
|
|
7 |
Rated short-time withst銀站and current |
kA/4s |
20 |
20 |
|
8 |
Rated short-的開circuit open current 雜生 |
kA |
20 |
----- |
|
9 |
Closing voltage |
V |
AC220 |
DC24 |
|
10 |
Opening voltage |
V |
DC48 |
DC24 |
|
11 |
Mechanical life |
Times |
10000 |
|
|
12 |
SF6 gas gauge pres志時sure (at 20℃) |
Mpa |
0.04 |
|
|
13 |
Partition con行白troller |
|||
|
14 |
Model |
|
FDR |
|
|
15 |
Working power supply volt林道age/frequency |
|
AC220V/50Hz 離舞 |
|
|
16 |
Setting value of phase-to吃還-phase short circuit protection current秒懂 |
A |
1-5 5-sect一國ion switch (software adjus船鄉table under specific condi見志tions) |
|
|
17 |
Setting value of z如土ero-sequence current f嗎筆or ground protection嗎化 |
|
20mA-60A 12-section switch員好 (software adjustable under specific懂土 conditions) |
|
|
18 |
Setting value of ground p麗說rotection action time |
s |
0-60 12-section switch (softw花答are adjustable under specif河書ic conditions) |
|
|
19 |
Permissible error for op生些eration value |
|
±5% |
|
1. Intelligent detection of faults: d現自etect a fault occurred inside司會 or outside the boundary for subseq路紙uent action.
2. The device supports吃吃 dual AC power supply m什信ode and uses battery
關有
(super-capacitor) as backup如劇 power source for power supply.玩笑 Normally, the device
坐雜
is powered by AC power supply and輛但 PT power supply is also supported.店理 When AC
power source is金這 cut off, the device低慢 should switch to another 見刀AC power source or
backup power sour匠人ce for power supply without dist場我urbance. When AC power 銀醫source
restores power supply, the devi暗人ce should automatically switch 頻舞to AC power
source fo輛國r power supply.
3. Intelligent power source ma劇睡nagement function: ba時城ttery activation management
funct影章ion is provided to realize battery ch裡用arge and discharge in an automatic很化,
manual at site and remote con工木trol manner and the i對美nterval of battery charge an關海d
discharge can be set.
4. Prepaid electric energy meter f線放unction: intelligent management of po司公wer
metering and prepaid power serv書朋ice is realized after a 術書prepaid electric energy
作門meter is installed.
5. Support power data col請的lection and monitoring system, en東紅ergy management
system, substat書這ion automation system, converter s就高tation computer moni東理toring
system, power p相外lant computer monitoring syste討笑m, distribution automation syst服土em,
microcomputer relay pr通內otection and automatic sa頻習fety device, wide-ar司拍eas phase
measurement syst美水em(wams), load control system, water po腦分wer scheduling
automation sy些美stem and hydropower casca章相de dispatching automation syst器身em,
electric energy metering and b業章illing system, supplementary contr作公olled system for
real-time power mar匠劇ket, etc.