南自西电真空断路器在线监测装置OLM-NZ1

南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1

真空断路器在线监测装置

OLM-NZ1 On-Line Monitoring Device in VCB

OLM-NZ1

NANJING NANZI XIDIAN ELECTRIC CO.,LTD

10kV 真空断路器

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南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1 真空断路器在线监测装置

在线监测装置应用实例 Application Examples of On-line Monitoring Devices

Product Features

产品特点

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实时反映断路器运行状态

针对潜在故障进行预判并采用声光报警●

Functions of on-line monitoring device and circuit breaker are independent

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Reflect the operating status of circuit breaker in real time

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Potential failure anticipation and use of sound and light alarm Mechanical properties of closing & opening process: real-time using a numeric or graphical curve

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Opening & closing coil of circuit breaker is with self-protection, and real-time monitoring to coil state

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对断路器分合闸线圈进行实时监测并起保护作用，线圈电流异常时进行报警●

Waveform monitoring to closing & opening coil current, non-normal alarm

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RS485/232 communication interface,

using standard modbus communication protocol to achieve data transmission, the monitoring parameters can be sent to the background terminal.

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可带标准的RS485/232通信接口，采用modbus通讯协议实现数据传送，各项监测参数都可以传送至后台终端

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Long life (including sensors), a highly reliable

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OLM-NZ1

南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1 真空断路器在线监测装置

在线监测带来的变化 Changes Brought About by On-line Monitoring

实现定期计划检修向状态检修的转变，实时掌握设备特性状态，按需维修，避免设备过度维修和带故障运行。

根据需要可将设备状态上传至集中控制室，远方监测断路器状态。

Change regularly scheduled maintenance overhaul to the state maintenance, real-time status of device characteristics by demand maintenance, to avoid excessive equipment maintenance and with trouble-free operation.

According to the requirement, device status can be uploaded to a central control room, remote monitoring the status of circuit breaker.

正常工作条件和安装条件 Normal operating conditions and installation conditions

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环境温度

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Ambient temperature Max. temperature:+40℃ Minimum temperature: -25℃(to allow storage at -30 ℃)

Ambient humidity

Daily average relative humidity: ≤ 95% Monthly average relative humidity: ≤ 90% Earthquake intensity is not more than 8 magnitude

Use of places without dripping, non-inflammable and explosive dangerous heavy pollution, no chemical corrosive gases as well as non-violent vibration

OLM-NZ1

　最高温度：+40℃

　最低温度：-25℃（允许在-30℃储运）

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环境湿度

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　日平均相对湿度：≤95%　月平均相对湿度：≤90%

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地震裂度不超过8级

使用场所无滴水、无易燃和爆炸危险、无严重污秽、无化学腐蚀性气体以及无剧烈震动。

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南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1 真空断路器在线监测装置

监测内容及意义

Content and Significance of Monitoring

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监测项目：合闸时间位移曲线

可以准确反映断路器动触头合闸特性，并可以与由标准曲线生成的包络线对照

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Monitoring Project: Closing time displacement curve

it can reflect accurately the closing features of moving contacts in circuit breaker, and can control with the envelope generated by the standard curve.

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监测项目：断路器超行程 Monitoring Project: CB over-travel

确保刚分速度和分闸速度，确保触头压力符合产品要求

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to ensure the speed at instant of contact separating and opening

requirements of product.

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监测项目：断路器合闸时间

Monitoring Project: Closing time of circuit breaker

合闸时间的变化反映出机构的灵活性及机构磨损信息

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The change of closing time reflects the flexibility and wear of mechanism.

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OLM-NZ1

speed, which ensure the contact pressure to conform to the

南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1 真空断路器在线监测装置

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监测项目：断路器合闸平均速度

合闸平均速度反映着机构灵活性，同时通过平均速度可以发现合闸能量的变化，如果是弹簧机构，则可能是因为合闸弹簧的刚度降低造成

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Monitoring Project: The average speed of

circuit breaker

average closing speed reflects the flexibility of mechanism, which can find the change of closing energy by the average speed; it may be caused due to the decreased stiffness of closing spring if it is spring mechanism.

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监测项目：断路器刚合速度

可以精确计算出断路器在刚合瞬间的合闸速度，刚合速度过低，在关合短路故障时容易发生触头熔焊

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Monitoring Project:Speed at instant of contacts

touching in circuit breakers

It can calculate the closing speed of circuit breaker

OLM-NZ1

accurately at instant of contact touching, contact welding happens easily when breaking short-circuit fault because of the speed is too low.

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监测项目：分闸时间位移曲线

可以准确反映断路器动触头分闸特性，并可以与由标准曲线生成的包络线对照

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Monitoring Project:Opening time displacement

curve

it can reflect the opening characteristics of circuit breaker accurately, and can control with the envelope from the standard curve generated.

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南京南自西电电气有限责任公司

NANJING NANZI XIDIAN ELECTRIC CO.,LTD.

OLM-NZ1 真空断路器在线监测装置

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监测项目：断路器触头开距

断路器开距过小影响真空断口绝缘水平，也有可能造成断路器短路开断后的重燃，开距过大会影响真空灭弧室波纹管伸缩长度，从而降低真空灭弧室寿命

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