Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
| Test Method | FRA and Reactance Method |
| Repeatability | 99.9 Percent |
| FRA Scan Points | 40000 Linear 2000 Segmented |
| Scan Frequency Accuracy | 0.005% |
| Measurement Accuracy | Voltage 0.2 Current 0.2 |
| Payment Terms | T/T |
| Supply Ability | 3000unit/year |
| Delivery Time | 5-8 work days |
| Packaging Details | wooden packaging |
| Voltage Range | AC 25V to 500V |
| FRA Scan Range | 10Hz to 10MHz |
| Frequency Resolution | 0.25kHz 0.5kHz 1kHz |
| Impedance Range | 0 to 100 Percent |
| Amplitude Accuracy | 0.1dB |
| Output Impedance | 50 Ohm |
| Application | 63kV-500kV Power Transformers |
| Amplitude Range | -120dB to +20dB |
| Signal Output Amplitude | Plus Minus 20V |
| Current Range | AC 0.1A to 10A |
| Data Output | Automatic Word Report |
| Input Impedance | 1 MOhm |
| Brand Name | XZH TEST |
| Model Number | XHBX1502 |
| Certification | ISO CE |
| Place of Origin | Xi'an Shaanxi China |
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Product Specification
| Test Method | FRA and Reactance Method | Repeatability | 99.9 Percent |
| FRA Scan Points | 40000 Linear 2000 Segmented | Scan Frequency Accuracy | 0.005% |
| Measurement Accuracy | Voltage 0.2 Current 0.2 | Payment Terms | T/T |
| Supply Ability | 3000unit/year | Delivery Time | 5-8 work days |
| Packaging Details | wooden packaging | Voltage Range | AC 25V to 500V |
| FRA Scan Range | 10Hz to 10MHz | Frequency Resolution | 0.25kHz 0.5kHz 1kHz |
| Impedance Range | 0 to 100 Percent | Amplitude Accuracy | 0.1dB |
| Output Impedance | 50 Ohm | Application | 63kV-500kV Power Transformers |
| Amplitude Range | -120dB to +20dB | Signal Output Amplitude | Plus Minus 20V |
| Current Range | AC 0.1A to 10A | Data Output | Automatic Word Report |
| Input Impedance | 1 MOhm | Brand Name | XZH TEST |
| Model Number | XHBX1502 | Certification | ISO CE |
| Place of Origin | Xi'an Shaanxi China | ||
| High Light | Dual FRA and Reactance Methods ，63kV to 500kV Transformer Testing ，Auto Word Diagnostic Reports | ||
XHBX1502 变压器绕组变形阻抗测试仪——一款USB连接的诊断仪器,采用频率响应分析(FRA)方法和电抗方法检测63kV-500kV电力变压器的内部绕组故障,并具有自动分析和Word报告输出功能.
XHBX1502测量变压器内部绕组特性参数,并采用频率响应分析(FRA)方法——一种无损的内部故障检测技术——对变压器内部故障进行精确判断.它适用于63kV～500kV电力变压器的内部结构故障检测.
变压器一旦设计和制造完成,其线圈和内部结构便已固定,因此每个线圈的频域响应也随之固定,三相之间保持可比性.然而,测试过程中的匝间或相间短路,运输过程中的冲击,以及短路和故障情况下的电磁力都可能导致绕组分布参数发生变化,从而改变原始频率响应(幅值变化和谐振点偏移).通过量化这些响应变化——包括幅值,频率范围和变化趋势——测试人员可以确定绕组变形程度,并有助于判断变压器是否严重损坏或需要大修.
该仪器由一台笔记本电脑和一个基于单片机的高精度测量系统组成.它结构紧凑,操作简便,只需阅读使用手册或经过简短的培训即可使用.
主要特点XHBX1502 支持中国电力标准规定的变压器绕组变形试验的两种方法:
| 方法 | 原则 | 标准符合要求 | 关键输出 |
|---|---|---|---|
| 频率响应分析(FRA) | 将各绕组各相的频域响应与历史数据进行比较 | DL/T911-2004 | 相似度(从非常好到非常差)和变形程度(正常,轻微,中度,严重) |
| 电抗/阻抗法 | 测量各相的低压短路阻抗,并将各相阻抗值与铭牌值进行比较. | DL/T1093-2008 | 每相短路阻抗和相间比较 |
自动分析系统报告水平三相相似度(一致性非常好,较好,较差,很差)和垂直同相绕组状况(正常绕组,轻微变形,中等变形,严重变形),并可将结果导出为 Word 文档.
频率响应法——技术规格 2.1 扫描模式 & 2.2 其他技术参数| 扫描模式 | 线性扫描和分段扫描 |
| 线性扫描范围 | 频率范围:10Hz – 10MHz,40000 点；分辨率:0.25kHz / 0.5kHz / 1kHz |
| 分段扫描范围 | 0.5kHz – 1MHz,2000 个点(0.5–10kHz,10–100kHz,100–500kHz,500–1000kHz) |
| 振幅范围 | -120dB 至 +20dB |
| 幅度精度 | 0.1dB |
| 扫描频率精度 | 0.005% |
| 信号输入阻抗 | 1MΩ |
| 信号输出阻抗 | 50Ω |
| 信号输出幅度 | ±20V |
| 同相重复性 | 99.9% |
| 工作温度 | -10°C 至 +40°C |
| 储存温度 | -20°C 至 +70°C |
| 相对湿度 | <90%,非冷凝 |
| 测量精度 | 电压等级 0.2；电流等级 0.2 |
| 阻抗范围 | 0 – 100% |
| 电压测量范围 | 交流电 25V – 500V |
| 当前测量范围 | 交流电 0.1A – 10A |
| 工作湿度 | 0 – 80% |
| 同相重复性 | 99.9% |
电抗法采用三相连接和单相测量方式:仅将低压侧短路,高压侧同时连接三相,一次测量即可自动计算出各相的短路阻抗.该装置可使用内置的220V电源或外部电源供电.
手册中引用的中国电力法规建议在以下情况下进行绕组变形试验:
XHBX1502 的目标用户是负责大型电力变压器内部状况评估的团队:
它可通过 USB 连接笔记本电脑进行操作,自动进行三相分析并输出 Word 报告,专为现场和工厂使用而设计——只需移除变压器连接母线,无需起吊或拆卸.
常见问题解答该仪器由西安旭智辉机电技术有限公司(XZH TEST)生产,该公司是一家电力变压器和电气测试仪器制造商.XHBX1502变压器绕组变形阻抗测试仪符合DL/T911-2004和DL/T1093-2008技术要求.
网站: www.xzhjdkj.com
Company Details
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
1000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical... Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical...
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