Skip to main content

工厂检测单元中的电气安全

电池、功率电子装置、加热装置和电力车轴驱动装置等高压组件在安装到车辆上之前,必须检查其功能和安全性。为确保安全完成该工作,生产过程中使用的检测单元周围通常都有防护罩,以免危及设备附近的人员。

主要应用事实

领域


工厂检测单元中的电气安全

应用


可靠确认不再有高压

测量参数


一旦达到用户定义的阈值,就发出基于开关阈值的输出信号。

主要要求


确保高压环境内的工作场所安全

精确感测不安全电压极限

确认系统运行

通过检测危险高电压确保安全

应用说明

必须按照 EN 50191(或安装所在国/地区的类似标准和安全规定)保护检测工位。

应用的要求

由于组件的鉴定过程通常涉及在负载下进行检测,因此可靠确认不再有任何高压是工作人员能够重新安全进入检测单元的重要先决条件。

为何选择 Knick ?
Knick P52000VPD 传感器坚固耐用,一旦达到用户定义的阈值,就会提供基于开关阈值的输出信号。可以借助电压检测器监测高达 ± 4200 V AC/DC 的电压,永久隔离电压高达 4800 V AC/DC。可用的诊断开关输出确认“Power Good”状态。设备外壳带有硬化碳纤维防护罩,可防止输入端子出现高压。

相关产品

相关工业和应用

测试系统在电池模型中产生控制电压,以便模拟电池管理系统的温度条件,并评估 BMS 的温度管理。
借助 HIL 测试,可以在各种电池、负载和故障情况下评估牵引逆变器等设备的原型,不必在试验台上或车辆中测试逆变器。
生产过程中使用的检测单元通常由防护罩和电压检测器保护。
可以通过受电弓为电动商用车快速充电。为此需要在(带活动受电弓的)外部基础设施系统和固定安装在车顶上的充电杆之间保持接触。直流车顶配电箱包含检查充电连接和相应电压、以及与其他车载系统建立连接的组件。
在电池测试过程中,通过 HIL 配置(硬件在环)持续模拟充电和放电过程(电池循环),该配置与电动汽车运行期间的典型使用情况相对应。所测量的一系列参数包括容量、电池效率和自放电。
电动汽车手册


电动汽车测量技术应用和产品解决方案总览

最新博客文章

Stack and String Voltage Measurement in Electrolyzers and Fuel Cells

Voltage, current and temperature measurement in electrolyzers with P40000 series high voltage transducers

适用于 Knick 变送器的新型 30 mV 分流电阻

Knick 从现在起为其高压变送器的附件产品系列增添具有 30 mV 电压降的分流电阻
Innovations at InnoTrans 2024

Innovations at InnoTrans 2024 for rolling stock and DC traction power supply

At InnoTrans 2024 Knick presents electrical measurement solutions for rolling stock and DC traction power supply applications

Knick Austria - direct customer contact in Austria from 2024

Reorganization of sales in Austria and new contacts in the field of process analytics and interface technology

Energy storage - the handshake between renewable energy and electric vehicles

Energy storage technology such as battery and hydrogen are critical for growth and continuous development of renewable energy and e-mobility.

P52000VPD 电压检测器能够可靠检测高达 4200 V 的直流电压

新型电压检测器 P52000VPD (Voltage Presence Detection) 能够可靠监控高压应用领域,在达到指定阈值时向下游设备控制器发送信号。

Knick Interface at Battery and Electric & Hybrid Vehicle Technology Expo

Knick will be showcasing high-voltage electrical measurement and signal conversion products.

VariTrans A20340 – 仅需一个隔离放大器的标准信号倍增

The A20340 can output a standard input signal to four calibrated and galvanically isolated outputs in parallel.

Electrical measurement and process analytics for hydrogen production

Knick products optimize hydrogen production in the process and in electrolyser operation.

Condition Monitoring of High-Voltage Motors

Having an active predictive maintenance campaign in place for large rotating equipment can be a key strategy for maximizing process uptime.

Pulse frequency conditioner for speed sensors

The new P16000 from Knick is a pulse frequency conditioner that converts frequency signals from speed sensors into standard signals.

全球最小传感器,高达±2200 V

Knick的VariTrans P 40000系列能对从±50 mV到±3600 V的电压,以及从±100 mA到±20 kA的电流进行可靠测量。经过验证的ProLine系列现在已经扩展到包含传感器P42000D2,它安装在Din导轨上,模块设计紧凑,测量高达2200 V的直流电压。

宽范围电源对于直流电气测量的重要性

Knick生产的众多直流电气测量产品都包含通用的,也称为宽范围电源。这意味着它们将工作在一个相对较宽的电压范围窗口内,如20…253V,交流或直流。

Measuring Photovoltaic Degradation

Photovoltaic (PV) array degradation is an important aspect to consider for system design and installation.

Electrical Measurement Solutions: Control from 480 to 4800 Volts

Voltage and current transducers from Knick bring true control to electrical measurement applications across a wide-range of industries.

Benefits of High Voltage Transducers versus Instrument Transformers

When a need arises to step voltage in a circuit either up or down for purposes of power transmission or distribution, there is no doubt that transformers are essential.

分流器和霍尔效应的技术对比

在许多系统中,为了确保性能和安全,需要测量较大的直流电流。两个例子是静态励磁和轨道牵引动力。这些电流的测量通常采用两种主要原理之一:配有mV级变送器的分流器电阻或霍尔效应传感器来反馈。

MTBF beyond 3000 years: A snap hook for your plant

Failure of equipment on the plant floor can lead to considerable and costly disruption.

Knick Products Comply With UL - What Does That Mean?

There are different assessments and approaches to reach an adequate level of safety. Manufacturers are typically on the “safe” side, if they comply with recognized standards.

High-voltage transducer offers more safety on railway vehicles

The requirements placed on railway vehicles have increased significantly in recent years. Products for rolling stock need to ensure a higher level of functional safety than ever before.

True RMS Measurement with P41000TRMS

Traditional millivolt AC transducers are very susceptible to errors due to their poor insulation and are only designed for pure sinewave measurement.

Functional safety and maximum availability can go together

The requirements on operational and safety-related circuits are continuously growing.