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Typical wiring mode:
Dual power, dual line and 光暗dual access mode. Wiring mode of t離新his switchgear is to introduce dual紅信 power supply from diffe員船rent main cables. One 務購is main power source家北 and the other is thermal back-up 麗都power source. Under norma去厭l circumstances, uniform loading男歌 on lines and main s從科tation and substation is 校和realized through switch of 匠海main and backup power sources. In 厭場the case of fault, switch b術計etween main and back-up power s時為ources can be rapidly reali近不zed by automatic switch of d錢年evices to restore di答著stribution and substation pow遠是er supply for auto fault isolation.
|
S/N |
Item |
Unit |
Parameter |
|
1 |
Module |
||
|
2 |
|
|
Automatic switch module 離子 |
|
3 |
|
|
Two-way load swi訊很tch |
|
4 |
Rated voltage 讀房 |
kV |
12 /24 |
|
5 |
Power frequency w計電ithstand voltage |
kV |
42 /65 |
|
6 |
Lightning impulse voltage 報姐 |
kV |
75 /125 |
|
7 |
Rated current 道上 |
A |
630/630 |
|
8 |
Breaking capacity |
||
|
9 |
Rated active load 市跳breaking current |
A |
630/630 |
|
10 |
Ground fault 他如 breaking current |
A |
200/150 |
|
11 |
Mechanical l空視ife |
Times |
5000 |
|
12 |
Switch time |
ms |
300-1000 |
1. Meet two-in-one interlock requiremen廠頻t. Ensure to eliminate 說現the possibility of synch歌懂ronous closing of two power so鄉影urces; mechanical interlock form is pr做看eferred to realize interlock可離.
2. Load switch of auto switch cabine喝坐t meets fast closing-openin哥放g requirement
and the switc短站h time can be set as requ長開ired (5~10s);
3. “Fault detection fu跳議nction”: when there is short-circui爸謝t fault at power side
(load s放姐ide), the switch device can高那 immediately shut auto swit美媽ch function to
prev草黃ent switching the faul要公t point to the backup p場這ower source circuit which may木分
cause deterioration;
5. Dual-power auto switch contro農冷l device is provided with comm媽船unication
function (RS485通放, Ethernet), which can upload c日子urrent, voltage, switch and fault
sig員靜nal. It is also provided with 1討請2-way remote monitoring, 24-way remot體著e
communication and 2-way時南 remote control (optional) f近到unction.
6.
Incoming line is design南身ed in the form design 友著dual circuit-breaker unit with the
br現草eaking capacity of breaking 25KA shor藍線t-circuit current. The maximum cur一用rent
of main bus can reach 1250A,醫短 which can directly b他內reak the short-circuit 站船current
of outgoing l匠體oop to eliminate over雨有ride trip at high-level substation.
7. Incoming line is designed in the form鄉呢 design dual circuit-b鐘低reaker unit
accompanied with microc制河omputer protection unit. Th術離e incoming line can reali雜司ze
rapid power switch,我還 thus avoiding brief powe風費r outage during swit藍些ching.
8. Incoming line is des朋還igned in the form design dual circui影懂t-breaker unit.
Reliable mechanical in麗習terlock in combination with op匠自erating mechanism can
eliminate t文自he possibility of mi裡友soperation.