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                                              真空断路器
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                                              HVD7

                                              HVD7 vacuum circuit breaker.png

                                              1. Introduction

                                              HVD7-40.5 outdoor HV AC vacuum circuit breaker has many visual advantages like reasonable design, fashionable appearance, high safety and reliability, simple maintenance, long electric life. It is the ideal upgraded products of 35KV outdoor oil circuit breakers.

                                              HVD7-40.5 vacuum circuit breaker is applicable for three-phase power system of AC 50HZ.It is used to make and break the load current ,overload current and short-circuit current.

                                              HVD7-40.5户外交流高压真空断路器(ZW7-40.5),具有设计合理、外形新颖、安全可靠、维护简便、电寿命长等优点。是35KV户外多油断路器更新换代的理想产品。

                                                  HVD7型真空断路器用于交流50Hz的三相电力系统中,作为分合负荷电流、过载电流及短路电流之用。

                                               

                                               

                                              2. Applicable environment

                                              2.1The ambient temperature should be -30℃~ +40℃(-40℃ in the frosty area);

                                              2.2Altitude should not exceed 2000m(over 2000m is plateau type);

                                              2.3The wind pressure should not exceed 700Pa(equal to wind speed 34m/s);

                                              2.4Air pollution degree: Ⅲ,that of antifouling type:Ⅵ;

                                              2.5The installation site should be free from the fire, explosion, chemical corrosion and serious vibration.

                                              2.使用环境

                                              2.1周围空气温度不高于+40℃,不低于-30℃(严寒地区-40℃);

                                              2.2海拔不超过2000米(2000米以上为高原型);

                                              2.3风压不超过700Pa(相当于风速34m/s);

                                              2.4空气污秽程度III级,防污型Ⅳ级;

                                              2.5无火灾、爆炸危险、化学腐蚀及剧烈振动的场所。

                                               

                                               

                                               

                                              1. Main technical parameters

                                               

                                              No.

                                              Item项目

                                              Unit单位

                                              Date参数

                                              1

                                              Rated voltage额定电压

                                              KV

                                              40.5

                                              2

                                              Rated insulation

                                              Level

                                              额定绝缘水平

                                              1min power frequency

                                              withstand voltage

                                              1分钟工频耐压

                                              Dry test

                                              KV

                                              95

                                              Wet test

                                              80

                                              Lightning impulse withstand voltagepeak value

                                              雷电冲击耐受电压(峰值)

                                              185

                                              3

                                              Rated current额定电流

                                              A

                                              1600

                                              2000

                                              4

                                              Rated short-circuit breaking current

                                              额定短路开断电流

                                              KA

                                              20

                                              25

                                              31.5

                                              5

                                              Rated short-circuit making currentpeak

                                              额定短路关合电流(峰值)

                                              KA

                                              50

                                              63

                                              80

                                              6

                                              Rated operating sequence

                                              额定操作顺序


                                              O-0.3s-CO-180s-CO

                                              7

                                              Rated short-time withstand current

                                              额定短时耐受电流

                                              KA

                                              20

                                              25

                                              31.5

                                              8

                                              Rated peak withstand current

                                              额定峰值耐受电流

                                              KA

                                              50

                                              63

                                              80

                                              9

                                              Rated short-circuit duration

                                              额定短路持续时间

                                              S

                                              4

                                              10

                                              Rated control voltage

                                              额定控制电压

                                              V

                                              AC220,110;DC220,110

                                              11

                                              Rated short-circuit breaking current break times

                                              额定短路开断电流开断次数

                                              Times

                                              20

                                              12

                                              Full-break time

                                              全开断时间

                                              ms

                                              ≤80

                                              13

                                              Mechanical life

                                              机械寿命

                                              Times

                                              10000

                                               


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