NAWGS-8型全自动抗干扰异频介损测试仪
产品特性
超大液晶中英文显示
仪器配备了大屏幕(105mm×65mm)中英文菜单界面,屏显分为左右两部分,左边为功能菜单区,右边为相关状态信息提示,每一步都非常清楚,操作人员不需要专业培训就能使用。一次操作,微机自动完成全过程的测量,是目前非常理想的介损测量设备。
海量存储数据
仪器内部配备有日历芯片和大容量存储器,能将检测结果按时间顺序保存,随时可以查看历史记录,并可以打印输出;
科学优良的数据管理
仪器数据可以通过U盘导出,可在任意一台PC机上通过我公司专用软件,查看和管理数据并可生成工作报告。
多种测试模式
仪器能够分别使用内高压、外高压、内标准、外标准、正接法、反接法、自激法等多种方式测试;在外标准外高压情况下可以做高电压(大于10kV)介质损耗。
CVT测试一步到位
该仪器还可以测试全密封的CVT(电容式电压互感器)C1、C2的介损和电容量,实现了C1、C2的同时测试。该仪器还可以测试CVT变比和电压角差。
6、不拆高压引线测量CVT仪器可在不拆除CVT高压引线的情况下正确测量CVT的介质损耗值和电容值。
7、CVT反接屏蔽法测量C0 仪器可采用反接屏蔽法测量CVT上端C0的介质损耗值和电容值。
8、高速采样信号仪器内部的逆变器和采样电路全部由数字化控制,输出电压连续可调。
9、多重保护安全可靠仪器具备输入电压波动、输出短路、过压、过流、温度等多重保护措施,保证了仪器安全、可靠。仪器还具备接地检测功能,确保不接地设备不允许升压。
NAWGS-8 Anti-interference Pilot Frequency Dielectric Loss tester
Also called name
Dielectric loss tester, interference dielectric loss tester, automatic dielectric loss tester, different frequency dielectric loss tester, different frequency dielectric loss tester, interference dielectric loss tester, automatic dielectric loss tester,tan delta Tester,tan delta test equipment,tan delta test kit
Characteristics of the products
1.Super large LCD display
It is quipped with a large screen (105mm x 65mm), the screen is divided into two parts, the left as a function of the menu area , the right is for the relevant status message alert, every step is very clear, operators is easy to use without professional training. One operation, the microcomputer will automatically complete the whole process of measurement, is the ideal equipment for dielectric loss measuring.
2.Mass storage data
It is equipped with an internal calendar and a large capacity memory chip, which can save the test results in chronological order , you can always view the history, and you can print out at any time.
3.Scientific and advanced data management
The data can be exported through U disk, and can be view, manage and generate report through our company special software on any PC machine.
4.Multiple test modes
The instrument can be used in many test methods, such as internal high-voltage, external high-voltage, internal standard, external standard, positive connection, reverse connection, self-excitation method and other modes. It can do high voltage electric loss test (voltage is more high than 10kV) under external standard and external high-voltage.
5.CVT test in one step
The instrument can also test the dielectric loss and capacitance of fully sealed CVT (capacitor voltage transformer) C1, C2, and achieve simultaneously test for C1, C2. The instrument can also test the CVT ratio and voltage angle difference.
6.The instrument can test CVT without removing high-voltage wire.
The instrument can test the loss value and capacitance value of CVT without removing high-voltage wire
7.Reverse connection shielding method
The instrument can adopt reverse connection shielding method to test the loss value and capacitance value of C0 upper end of CVT.
8.High-speed sampling signal
High speed sampling signal: the inverter and the sampling circuit of the instrument are all controlled by digital control, and the output voltage can be adjusted continuously.
9.Multiple protection is safe and reliable
the instrument has many protective measures such as input voltage fluctuation, output short circuit, over voltage, over current, temperature and so on. It ensures the safety and reliability of the instrument. The instrument also has a grounding detection function to ensure that no grounding equipment is not allowed to boost.
NABXZ Series Automatic frequency resonant test system NABXZ全自动变频串联谐振耐压试验成套装置
产品简介
NABXZ系列全自动变频串联谐振高压试验装置,主要针对10kV、35kV、110kV、220kV、变电站及线路等所有电气主设备的交流耐压试验设计制造。电抗器采用多只分开设计,既可满足高电压、小电流的设备试验条件要求,又能满足低电压的交流耐压试验要求,具有较宽的适用范围,是地、市、县级高压试验部门及电力安装、修试工程单位理想的耐压设备。
产品别名
变频谐振,变频串联谐振,串联谐振,串联谐振变压器,串联谐振试验设备,便携式电缆耐压试验装置,工频串联谐振试验设备,串联谐振系统
产品特性
1、所需电源容量大大减小。串联谐振电源是利用谐振电抗器和被试品电容谐振产生高电压和大电流的,在整个系统中,电源只需要提供系统中有功消耗的部分,因此,试验所需的电源功率只有试验容量的1/Q。
2、设备的重量和体积大大减少。串联谐振电源中,不但省去了笨重的大功率调压仪器和普通的大功率工频试验变压器,而且谐振激磁电源只需试验容量的1/Q,使得系统重量和体积大大减少,一般为普通试验仪器的1/10-1/30。
3、改善输出电压的波形。谐振电源是谐振式滤波电路,能改善输出电压的波形畸变,获得很好的正弦波形,有效的防止了谐波峰值对试品的误击穿。
4、防止大的短路电流烧伤故障点。在串联谐振状态,当试品的绝缘弱点被击穿时,电路立即脱谐,回路电流迅速下降为正常试验电流的1/Q。而并联谐振或者试验变压器方式做耐压试验时,击穿电流立即上升几十倍,两者相比,短路电流与击穿电流相差数百倍。所以,串联谐振能有效的找到绝缘弱点,又不存在大的短路电流烧伤故障点的忧患。
5、不会出现任何恢复过电压。试品发生击穿时,因失去谐振条件,高电压也立即消失,电弧即刻熄灭,且恢复电压的再建立过程很长,很容易在再次达到闪络电压前断开电源,这种电压的恢复过程是一种能量积累的间歇振荡过程,其过程长,且不会出现任何恢复过电压。
产品参数
1.变频电源(一台):
1.1技术参数
1.1.1 额定功率:5.5-500kW;
1.1.2 输入电压:三相 380V±5% 或单相220V±5% 45~65Hz,当电源为380V时,可做额定负载试验;当电源为220V时,只可做1/2负载试验。
1.1.3 输出电压:0~400V可调
1.1.4 输出电压频率:20~300Hz
1.1.5 频率调节:0.1Hz步进可调
1.1.6 频率不稳定度:≤0.02%
1.1.7 输出电流:13~1250A
2. 高压电抗器
2.1 技术参数
2.1.1 额定工作电压:0~1000kV
2.1.2 额定工作电流:1~10A
2.1.3 额定电感量:30~600H
2.1.4 连续工作时间:15min
2.1.5 温 升:小于60℃
2.1.6 工作频率:20~300Hz
3. 激励变压器(一台):
3.1 技术参数
3.1.1 额定容量:3.5~500kVA
3.1.2 输入电压:当容量在5.5~20kW输入是200V/400V
当容量在20~500kW输入是400V
4. 电容分压器(一台):
4.1 技术参数
4.1.1自身电容量:300~5000pF
4.1.2额定电压:10~1000kV
4.1.3工作频率:20~300Hz
4.1.4不确定度:1.0%
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