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1、 概述 General
KYN28A-24铠装移开式金属封闭开关设备（以下简称开关设备），适用于户内三相交流50HZ，额定电压24KV的电力系统中，主要应用于发电厂、变电所、工矿企业及高层建筑中，作为接受和分配电能并对电路实行控制、保护和检测之用。
KYN28A-24 Metal-clad movable type metal-enclosed switchgear (hereinafter called switchgear),which is suitable for indoor three-phase 50Hz and rated voltage 24KV electric system,mainly applied in power factory、substation、industrial and mining enterprises and high-rise for receiving and distributing power energy and controlling、protecting and supervising electric circuit.
KYN28A-24型开关设备配用ZN63（VS1）型中置式高压交流真空断路器。
KYN28A-24 type switchgear matches with ZN63A(VS1) type middle-mounted H.V. vacuum circuit breaker.
本开关设备满足GB3906和IEC62271标准的要求。
This switchgear cubicle complys with the standands IEC62271andGB3906.
2、 技术参数 Technical parameters of switchgear.
2.1开关设备主要技术参数Main technical parameters of switchgear
|
序号
Sr.No |
项目
Item |
单位
Unit |
参数
Parameter |
|
1 |
额定电压力 Rated voltage |
KV |
24 |
|
2 |
额定绝缘水平
Rated insulation level |
一分钟工频耐受电压（有效值）
1min power-frequency withstand voltage.(r.m.s) |
KV |
相间 对地Between Poles To earth |
65 |
隔离断口Isolating distance |
79 |
|
雷电冲击耐受电压（峰值）Lightning impulse withstand voltage (peak) |
相间对地
Between Poles To earth |
125 |
隔离断口
Isolating distance |
145 |
|
3 |
额定频率 Rated frequency |
HZ |
50/60 |
|
4 |
额定电流 Rated current |
A |
630、1250、1600、2000、500 |
|
5 |
额定短路开断电流
Rated short-circuit breaking current |
KA |
20 |
25 |
31.5 |
|
6 |
额定短路关合电流（峰值）
Rated short-circuit making current (peak) |
50 |
63 |
80 |
|
7 |
额定短时耐受电流（4S）
Rated short-time withstand current(4S) |
20 |
25 |
31.5 |
|
8 |
额定峰值耐受电流
Rated peak withstand current(4S) |
50 |
63 |
80 |
|
9 |
辅助控制回路额定电压
Rated voltage of auxiliary control circuit |
V |
交流或直流110/220V
AC or DC 110/220V |
|
10 |
辅助控制回路工频耐压 Power frequency withstand voltage of auxiliary control circuit |
2000 |
|
11 |
防护等级 Protection class |
|
IP4X（外壳） IP4X （Enclosure）
IP2X(断路器室门打开或间室间
IP2X（when open the door of circuit breaker’s chamber or between chambers |
|
12 |
外形尺寸（宽*深*高）
Outline dimension (Width*Depth*Height) |
MM |
800*1810*2380、1000*1810*2380 |
|
13 |
重量 Weight |
KG |
840~1440 |
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注：架空进出线柜深度为2170mm.
Note:The depth of overhead incoming and out-coming switchgear is 2170mm.
2.2 真空断路器技术参数
|
序号
Sr.No |
项目
Item |
单位
Unit |
参数
Parameter |
|
1 |
型号 Type |
|
ZN63A（VS1）-24 |
|
2 |
额定电压力 Rated voltage |
KV |
24 |
|
3 |
额定绝缘水平
Rated insulation level |
一分钟工频耐受电压（有效值）
1min power-frequency withstand voltage.(r.m.s) |
KV |
65 |
|
雷电冲击耐受电压（峰值）Lightning impulse withstand voltage (peak) |
125 |
|
4 |
额定频率 Rated frequency |
HZ |
50/60 |
|
5 |
额定电流 Rated current |
A |
630、1250、1600、2000、500 |
|
6 |
额定短路开断电流
Rated short-circuit breaking current |
KA |
20 |
25 |
31.5 |
|
7 |
额定短路关合电流（峰值）
Rated short-circuit making current (peak) |
50 |
63 |
80 |
|
8 |
额定短时耐受电流（4S）
Rated short-time withstand current(4S) |
20 |
25 |
31.5 |
|
9 |
额定峰值耐受电流 Rated peak withstand current |
50 |
63 |
80 |
|
10 |
额定单个电容器组开断电流
Rated single capacitor bank breaking current |
A |
630 |
|
11 |
额定背对背电容器组开断电流
Rated back-to-back capacitor bank breaking current |
400 |
|
12 |
额定短路开断电流开断次数
Breaking times of rated short-circuit breaking current |
次
Time |
50 |
|
13 |
机械寿命 Mechanical life |
10000(M2 Class) |
|
14 |
额定操作顺序 Rated Operating Sequence |
|
O-0.3s-CO-180s-CO
o-180s-CO-180s-CO |
2.3、弹簧操动机构技术参数
Technical parameters of spring operating mechanism
|
序号
Sr.No. |
项目
Item |
单位
Unit |
参数
Parameter |
|
1 |
额定操作电压 Rated operation voltage |
V |
AC220、110;DC220、110 |
|
2 |
工作电流 Working current |
A |
AC、DC220：1.1
AC、DC110：3.1 |
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3 |
储能电机功率 Energy storage motor power |
W |
80、100 |
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4 |
储能电机额定电压
Rated voltage of energy storage motor |
V |
AC220、110 DC220、110 |
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5 |
电动机储能时间 Storage time or motor |
S |
≤10 |
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