TDR940系列综合保护装置哪家好

国内BMS电池管理系统企业一览随着电动汽车、储能系统和新能源设备的普及，BMS（Battery Management System，电池管理系统）逐渐成为关键技术之一。

BMS是保证电池安全、延长电池寿命、提高电池性能的核心设备，也是电动汽车智能化和可靠性的重要保证。

在国内，BMS电池管理系统企业逐渐壮大，市场需求也不断增加。

本文将为您介绍几家主要的国内BMS电池管理系统企业。

珂兰特克珂兰特克（Contec）成立于1975年，是台湾领先的电子测量仪器制造商。

其BMS电池管理系统主要应用于电动汽车、太阳能储能系统、铁路交通、电力能源等各个领域。

其产品以高集成度、高稳定性、高精度为特点，深受市场认可。

澳度电子澳度电子（Aotuo Electronics）成立于2006年，是一家专业从事电池管理系统的设计、开发、生产的高科技企业。

其BMS电池管理系统已广泛应用于电动汽车、储能系统、船舶、物流车等行业。

澳度电子的BMS电池管理系统以高可靠性、高智能、高成本性为特点，为其用户提供高品质的电池管理系统方案。

香港盛干科技香港盛干科技（Sungan）是一家专业从事电池管理和电源管理控制器的生产企业，其BMS电池管理系统主要应用于储能系统、电动汽车等领域。

盛干科技的BMS电池管理系统以高安全性、稳定性和智能化为特点，能够为用户提供全方位的技术服务和支持。

铃木铃木（Suzuki）是一家世界知名的汽车电子和半导体制造企业。

其BMS电池管理系统广泛应用于电动汽车、储能系统、智能家居等领域。

铃木的BMS电池管理系统以先进的技术、高品质的产品、优质的服务赢得了用户的信赖和赞誉。

重庆赛威电子重庆赛威电子（Sewiton）是一家专业从事电池管理系统、锂电池模组、电池回收业务的企业。

其BMS电池管理系统涵盖了车载、储能、通讯等多个领域。

重庆赛威电子的BMS电池管理系统以精湛的技术、先进的设计和严谨的测试保证高质量的产品和可靠的服务。

NAS Express软件安装及召唤故障录波1.NAS Express软件的安装⑴ 解压，里面有个，点击安装，建议安装在默认位置，装完会提示重启，也可稍后重启。

⑵解压，将里面的所有文件复制到前面安装的文件夹里。

如果是按默认安装，则是C:\NAS Express。

覆盖过后文件夹显示有这些文件：安装结束，前面没重启的可以重启了。

2.召唤故障录波NAS Express软件可选择串口通或者网络通装置。

若串口通NAS 920系列的装置，则用这个打开，其他则用打开。

⑴串口通召唤故障录波（用串口卡和波士与装置连接）以TDR 940装置为例，先打开，显示选择“系统\选择规约及项目”，操作显示如下：显示“规约及项目选择”，通讯规约选择“保护94拓展”，调试项目选择“TDR 940系列”，点击确认。

操作显示如下：选择：“系统\选择装置”，显示如下：通讯端口：就是PCI串口卡的端口号；装置型号：选择TDR 940；装置地址：所通装置的串口地址；波特率：装置的波特率设置完成后，点击确认，系统提示初始化完成，显示如下：这是可以查看装置有没有通上，可点击“系统\显示报文”，选择显示报文，可查看报文。

如下：选择“显示\故障录波\故障录波远程版”（注：故障录波本地版是打开保存在电脑上的录波文件，貌似容易导致软件卡死，建议不用），显示如下：点击“录波事件选择”，选择“获取录波事件列表”，，再选择“读取录波数据”，显示如下：当录波数据读取完毕后，选择好电压通道、电流通道、开关量即可。

显示如下：选择录波分析，可很细致的显示采样点的各谐波分量，如下：也可以在主界面上的快捷方式选择“故障录波”，调出录波分析软件，再选择录波文件，操作大致前面一样，显示如下：注：TDR 930和TDR 940系列装置操作方法都是一样的，只是有些选择不同，在此就不赘述了。

而若通NAS 920装置，前面已经说过，一开始选择的打开文件不一样，而后续的操作则是相似的，在此也不说了（NAS 928系列有些装置不能召唤故障录波）。

TDR900H AND -HELD TDR / C ABLE L ENGTH M ETERTDR900Hand-held Time Domain Reflectometer / Cable Length Meter DESCRIPTIONThe Megger TDR900 is an advanced instrumentcapable of measuring cable lengths and finding distance to an open or a short using Time Domain Reflectometry. It offers exceptional features and a range capability normally associated with far more expensive instruments. The measurement range spans from 15 feet (5 m) to 10,000 feet (3 km) with a minimum resolution of 20 inches (50 cm).The TDR900 can be used for any cable consisting of at least two insulated metallic elements, one of which may be the sheath or shield of the cable. The Meter has automatic internal matching networks to allow testing of 25Ω , 50Ω , 75Ω , 100Ω , 125Ω , or 150Ω cables. (These correspond to power, telephony, CATV, and LAN cables.)The Meter can be closely matched to the cable under test using the menu selection keys. The propagation velocity value can be similarly adjusted to match the cable under test; thus ensuring an accurate distance measurement. The other user adjustable setting is changing the distance measurement units (feet or meters).The Meter is housed in a rugged ABS enclosure which is dust and weatherproof to IP 42. The unit also comes with a soft carrying case and an alligator clip adapter. It is powered by 4 AA (NEDA 15A or NR 6) batteries,which are stored in a compartment on the back of the Meter. The batteries are held in a carrier for quick and easy replacement. APPLICATIONS TelephonyInstallation and Repair technicians desire a portable test set for testing service drops and inside wiring during trouble ticket dispatches. The TDR900 connects to service drops or inside wiring and determines single or multiple cases of trouble to the customers’ services. The Meter detects and displays cable issues, which do not meet the provider's facility criteria during the maintenance process. The TDR900 displays test results including: open, short, voltage detection and distance to fault in feet (meters). A tone generator is also built into the Meter for pair identification and tracing.Construction and Maintenance technicians can benefit greatly from an easy-to-use test set capable of testing OSP cabling systems. The TDR900’s exceptional measurement rangeaccommodates testing in the subscriber network.Full autoranging for measuring thelength of power, telephony, CATV and LAN cables, provides distance to an open or short.Extra large, high resolution backlit LCD.Automatic output impedance control of 25, 50, 75, 100, 125 or 150 ohms.User-friendly menu on screen operation.Cable length calibration function. Internal library of 39 standard cable types.20 internal memory locations for custom cable types.Tone generator (oscillating 910 to 1100 Hz) for cable identification and tracing.Line voltage detectionSafety protection up to 250 Vrms.TDR900H AND -HELD TDR / C ABLE L ENGTH M ETER Contractors/InstallersThe TDR900 fills various applications ranging from cable verification and fault location, panel mapping to cable stock control. The Meter supports either electrical contractors or telecom/datacom contractors.Contractors can verify cable lengths on buried service drops before billing service providers.Electric PowerStreet Lighting: To install street lighting, short lengths of cable run from lamppost to lamppost. It is important that joints are accessible as the cable runs underground. The TDR900 is used initially to ensure there is enough cable on the drum to give a continuous run and then utilized to check the installation is correct.MiningDue to Ex 'd' (Explosion proof) regulations most countries do not allow TDRs down mines, however, as the mine deepens, shafts are dug from the surface and umbilical cables aredropped down. These carry power for the tools and telecommunication needs. Due to the distances involved, these cables especially the telecom, become stretched and are likely to fail. The TDR900 can easily be justified as a maintenance tool to check cable integrity.BroadcastingOutside broadcasting: Outside broadcast vehicles carry an enormous amount of cables depending on the situation, e.g. sporting events can use ten or more different camera locations. Due to the temporary nature of the installation, cables get damaged and a low cost, simple to read TDR can easily be justified to quickly locate failures. Studio Broadcasting: Cameras in a studio have a trailing group of cables, which are draggedaround the floor, as the cameras move. This puts a strain both on the cable and in the joints, as quality of the signal is very important. Aerials: The signals from broadcastingcompanies are transmitted through aerials and large drops of cable are used due to the height of these aerials. The cables become stretchedespecially around the joints, giving poor service.StocktakingA simple application is stocktaking. Anycompany that purchases reasonable amounts of cable or any company that produces cable needs to know how much they are buying or have onthe shelf. Traditional graphic TDRs have had limited success in this area due to cost and waveform interpretations. The TDR900 provides both simplicity and accuracy.FEATURES• CE-Certificated• Accurate to 20 inches (50 cm) throughout the entire range• Extra-large backlit (ICON type 7 segment) LCD•Automatic output impedance control, auto-range, auto-zero, and auto-sensitivity allows for closely matching to a wide range of cables under test. Only V.O.P (velocity of propagation) settings required.•Displays cable length if the cable’s V.O.P (velocity of propagation) is known ordisplays V.O.P (velocity of propagation) if a cable’s length is known.• 20 internal memory locations store up to 20 custom cable V.O.P settings.•Internal library of 39 standard cables allow for quick and easy measurements for industry standard cable types.•Tone Generator (oscillating 910 to 1100 Hz; 5 V peak to peak) for cable identification and tracing.•Line Voltage Detection: Displays “OUCH” message and stops operation if line voltage exceeds 6.5 V.•Safety Protection (up to 250 V RMS)SPECIFICATIONSExcept where otherwise stated, this specification applies at an ambient temper of 68°F (20°C).GeneralCABLE LENGTH MEASUREMENTS Range: Depends upon the V.O.P of the cablesunder test.12,000 ft (3.7 km)@ V. O. P 99.9 9,800 ft (3.0 km)@ V. O. P 80.0 8,000 ft (2.4 km)@ V. O. P 66.0 6,200 ft (1.9 km)@ V. O. P 50.0Accuracy*:± 2 % of reading + 20 inch (50 < 300 ft (100 m)± 2 % of reading > 300 ft (100TDR900H AND -HELD TDR / C ABLE L ENGTH M ETER*This accuracy is effective for Coaxial Cables up to 8,000 feet, Telephony Cables up to 6,000 feet, and Structured Wiring up to 3,000 ft.Resolution: 20 inches (50 cm)V.O.P (Velocity of Propagation): Adjustable from1.0 % to 99.9 (in 0.1 % step)CABLE LENGTH CALIBRATION FUNCTIONAllows you to measure the V.O.P, given as a percentage of the speed of light, of a known cable length.Required minimum length of sample cable: 30 ft (10 m)NONVOLATILE MEMORY Cable library:39 standard cable typesCustom cable:20 custom cable typesAuto-Power-Off:The Meter is completely turned offed after 30 minutes of no activities. Press the POW E R button to turn the Meter on again. This feature can be disabled.Display:ICON type 7 segment LCD. Backlight stays on for 1 minute when activated.Connector type: BNC Power supply:4 LR6 (AA) type batteriesBattery life: Approx. 5,000 tests Safety:Complies with IEC 61010-1EMC: BS/EN 61326-1 PRODUCT INCLUDES:Megger TDR900 Cable Length Meter Alligator Clip adapter User ManualSoft Carrying CaseWARRANTY:3 years from date of purchase.MechanicalThe meter is designed for use indoors or outdoors. (IP 42) Dimensions:9.25 H x 3.94 W x 1.73 D in. (235 H x 100 W x 44 D mm) Weight:Approx. 16 oz (450 g)EnvironmentalOperating temperature: 0°F to 140°F (-18°C to 60°C) Storage temperature: -4°F to 158°F (-20°C to 70°C) Relative humidity: 85% at 95°F (35°C)ItemOrder No.Hand-held Time Domain Reflectometer / Cable Length Meter TDR900Complete with Alligator Clip adapter User ManualSoft Carrying CaseRegistered to ISO 14001 Reg no. EMS 61597Megger is a re g i s t e red trademark。

变电站通信总线布线规范文档一．现场通信总线分类1.1 串行通信串行通信中的每帧数据（7位或8位）都包含一个低电平的起始位，一个高电平的停止位和一个校验位，数据的传输波特率可从300bps～115200bps。

设备间通信的前提是必须首先对通信串口设置相同的数据位，起始位，停止位，波特率和奇偶校验。

串行通信一般包括RS232、RS485、RS422三种常用方式，三类通信总线方式的技术参数比较如下表：表1 RS232、RS422与RS485三种总线方式技术性能比较1.2 以太网通信以太网是一种利用四线制传输的通信方式，每个以太网节点都有一个隔离脉冲变压器作为驱动和物理接口。

技术性能如下：表2 以太网总线技术性能二．工程现场应用与布线规范2.1 RS232 通信总线2.1.1 应用场合通信工作站与PC机之间的通信连接，如用CDT，DISA送后台；现场RS232通信接口设备与通信工作站连接，如管理机通GPS时钟；现场RS232通信接口设备与PC机之间的通信连接，如后台通GPS时钟；2.1.2 布线规范1、RS232通信线路的拓扑结构为1对1方式。

2、在工程无特殊要求下，通信电缆采用8芯超五类屏蔽双绞线。

3、通信电缆应铺设在专用电缆通道内，距离高电压（大于48V）、大电流（大于10A）电缆垂直距离大于1m，且不能与之平行。

在不可避免的强干扰环境（距离高压、大电流设备和线路过近）下，通信线路应在专用钢管内走线，且钢管可靠接地。

4、布放的线缆应平直，不得产生扭绞、打圈等现象，不能受到外力挤压和损伤。

5、布放线缆应有冗余。

通信端口接线两端应预留0.3-06m。

6、通信电缆长度不超过15米。

7、通信线路TXD、RXD必须使用同一对双绞线的2芯，这里规定使用橙白、橙这一对双绞线，GND线规定使用棕色线。

线芯剥取长度15cm左右，待通信测试完成后，确定能够正常通信后将多余的线芯减掉，然后反拉通讯线外皮，使多余的线芯必须包裹在外皮中。

变电站通信总线布线标准文档一．现场通信总线分类串行通信串行通信中的每帧数据〔7位或8位〕都包含一个低电平的起始位，一个高电平的停顿位和一个校验位，数据的传输波特率可从300bps～115200bps。

设备间通信的前提是必须首先对通信串口设置一样的数据位，起始位，停顿位，波特率和奇偶校验。

串行通信一般包括RS232、RS485、RS422三种常用方式，三类通信总线方式的技术参数比拟如下表：表1 RS232、RS422与RS485三种总线方式技术性能比拟以太网通信以太网是一种利用四线制传输的通信方式，每个以太网节点都有一个隔离脉冲变压器作为驱动和物理接口。

技术性能如下：表2 以太网总线技术性能二．工程现场应用与布线标准2.1 RS232 通信总线2.1.1 应用场合通信工作站与PC机之间的通信连接，如用CDT，DISA送后台；现场RS232通信接口设备与通信工作站连接，如管理机通GPS时钟；现场RS232通信接口设备与PC机之间的通信连接，如后台通GPS时钟；2.1.2 布线标准1、RS232通信线路的拓扑构造为1对1方式。

2、在工程无特殊要求下，通信电缆采用8芯超五类屏蔽双绞线。

3、通信电缆应铺设在专用电缆通道内，距离高电压〔大于48V〕、大电流〔大于10A〕电缆垂直距离大于1m，且不能与之平行。

在不可防止的强干扰环境〔距离高压、大电流设备和线路过近〕下，通信线路应在专用钢管内走线，且钢管可靠接地。

4、布放的线缆应平直，不得产生扭绞、打圈等现象，不能受到外力挤压和损伤。

5、布放线缆应有冗余。

通信端口接线两端应预留0.3-06m。

6、通信电缆长度不超过15米。

7、通信线路TXD、RXD必须使用同一对双绞线的2芯，这里规定使用橙白、橙这一对双绞线，GND线规定使用棕色线。

线芯剥取长度15cm左右，待通信测试完成后，确定能够正常通信后将多余的线芯减掉，然后反拉通讯线外皮，使多余的线芯必须包裹在外皮中。

2针形压接头〔线鼻子〕冷压后接入端子；假设设备通信接口是标准DB9公〔母〕头接口，必须使用DB9母〔公〕头焊接通讯线并用塑料外壳封装好后安装接入。