NAVAT全自动互感器校验装置

 产品简介 

NAVAT全自动互感器校验装置，是一种新颖的自动化检测仪器，它运用先进的电子技术，对互感器的误差信号直接采极分解，并经适当运算后，将互感器的百分点、同相误差、正交误差同时以数字量显示出来。NAVAT互感器校验仪操作简便，读数直观，测量迅速，能降低电能消耗，减轻劳动强度；体积小，重量轻，便于携带和现场测试；仪器能在5%定额工作电流（电压）下进行测试；另外要求南澳电气（武汉）有限公司也能生产检测S级电流互感器和二次电压为100/3V的电压互感器校验仪，此时仪器能在1%额定工作电流下测量电流互感器的误差；在检测过程中仪器能方便地随时进行自校，以保证仪器的精度；关键元器件使用进口组件，质量稳定可靠，广泛用于计量、供电等部门和互感器生产厂家，是开展互感器检测的理想仪器。

产品别名

互感器校验仪、互感器现校仪、全自动互感器校验仪、全自动电流互感器校验仪、全自动电压互感器测试仪、互感器现场校验仪、电流互感器现场校验仪、电压互感器现场校验仪

产品特性

⑴采用320×240点阵液晶，可视范围大，带长寿命背光照明，方便使用；

⑵中英文操作界面，界面美观；

⑶百分表、比差、角差采用特大字体显示，方便用户观测；

⑷完全满足JJG314-1993和JJG314-1994要求，自动采样；

⑸自动判断极性错误，变比错误；

⑹上位机软件具有虚拟仪器开放功能；

⑺彻底解决S级测量问题；

⑻自动切换量程；

⑼采用先进独特电路和DSP技术完美结合，彻底解除阻容移相电路不稳定的问题。

⑽功耗：＜ 15VA（不带微型打印机）

      ＜ 25VA（带微型打印机）

⑾谐波抑制比: ＞ 40db

⑿外形尺寸：260mm（长）×350mm (宽)×150mm（高）

⒀ 重量：6KG

产品参数 

1、设备使用环境

⑴温度:5℃--40℃ 相对湿度:<80%(25℃) 海拔高度:<2500m

电源频率:50Hz±0.5 Hz 电源电压:220V±5V

⑵ 测量范围:

同相分量(%): 0.0001～200.0 分辨率:0.0001

正闪分量(分):0.001～700.0 分辨率:0.001

阻抗(Ω): 0.0001～20.0 分辨率:0.0001

导纳(ms)： 0.0001～20.0 分辨率:0.0001

⑶基本误差:

同相分量:ΔX=±（X×2%＋Y×2%±Dx）(有1级可选)

正交分量:ΔY=±（X×2%＋Y×2%±Dy）(有1级可选)

“X”、“Y”——仪器的显示值

“Dx,Dy”——仪器的量化误差

 Dx=2,Dy=5

⑷百分表: 1.5级(有1级可选)

2、工作范围：

⑴电流 ：（1%－149%）In （In =5A）

（5%－149%）In （In =1A）

⑵电压 ：（5%－149%）Un （Un =100V，150V，100V/ ）

（5%－149%）Un （Un =100V/3）

3、工作负荷：

⑴电流：TO对TX＜0.12Ω cosΦ=1

⑵电压：a对x＜0.25VA （100V）

4、极性错误指示

额定工作电流（电压）的5%以上，误差超过180%时，应对如极性指示。

注意：如果大于额定工作电流（电压）的10%以上，仍未出现应有的极性指示，说明有故障，请不要再增加电流（电压），以免烧坏仪器。

5、变比错误指示：

额定工作电流（电压）的5%以上，误差超过30%而小于180%时，应有变比错误指示。

6、绝缘和耐压试验及说明：

端子TX（〨）端子相通

电源插座对外壳能承受1.5kV,1min耐压

7、互感器校验仪主要特点：

⑴采用320 x 240点阵液晶，可视范围大，带长寿命背光照明，方便使用；

        ＜ 25VA（带微型打印机）

 

Product introduction

It is a new automated testing equipment, it uses advanced electronic technology, the transformer is taken directly polar decomposition of the error signal, and after appropriate after the operation, the transformer points, phase error , quadrature error in the digital display. NAVAT transformer calibrator is simple, intuitive readings, measure quickly, can reduce energy consumption, reduce labor intensity; small size, light weight, easy to carry and field testing; instrument can be fixed at 5% Operating current (voltage) under testing; some old users asked Nanao Electric Wuhan Co., Ltd. produce this new generator testers, which can detect S-class current transformer and the secondary voltage of the voltage transformer calibrator 100/3V, then 1% of the rated instrument can measure the current transformer operating current the error; instrument in the detection process can be easily carried from the school at any time to ensure the accuracy of the instrument; critical components using imported components, stable and reliable quality, widely used in metering, power supply and other departments and transformer manufacturers, is to carry out transformer testing the ideal instrument.

Also called name

Transformer tester, PT calibrator, CT calibrator

The Characteristics of the products

1. Use 320x240 dot-matrix LCD, with wide station visual zone and long life back lighting, easy to use.

2. With beautiful appearance.

3. Percentage, ratio, phase-angle difference displayed in big characters, convenient for customers to test.

4. Meets JJG314-1993 and JJG314-1994,automatically sample.

5. Automatically detect the polarity and ratio error.

6. The soft ware of the upper-computer with the function of virtual instrument.

7. Solve the problem of S degree measurement.

8. Automatically change the measurement distance.

9. Use advanced, special circuit and DSP technique, solve the problem of instability of resistor-condenser & phase-shifted Circuit

10. Power consumption: < 15VA(without micro printer)

                       < 25VA(with micro printer)

11. Harmonic Reduction:> 40db

12. Dimension:260mm×350mm×150mm

13. Weight:6kg

The parameters of the products 

1. service condition

   (1) temperature:5℃--40℃   humidity:<80%(25℃)  

       altitude:<2500m

       power frequency:50Hz±0.5 Hz    supply voltage:220V±5V

   (2) measurement range:

       co-phase component (%): 0.0001～200.0                  

       resolution: 0.0001

       orthogonal component: 0.001~700.0         resolution: 0.001

       resistance(Ω): 0.0001~20.0               resolution: 0.0001

       admittance (ms): 0.0001~20.0              resolution: 0.0001

   (3) intrinsic error:

       co-phase component:   ΔX=±(X×2%＋Y×2%)± Dx (1degree optional)

       orthogonal component: ΔY=±(X×2%＋Y×2%)± Dy (1degree optional)

                            “X”,“Y”——display of the device

                            “Dx , Dy”—— the quantization error of the device

                             Dx=2,Dy=5

   (4) dial indicator:      2 degree (1degree optional)

2. working range:

  (1) current:(1%－149%)In    (In =5A)

              (5%－149%)In    (In =1A)

  (2) voltage:(5%－149%)Un    (Un =100V，150V，100V/ )

              (5%－149%)Un    (Un =100V/3)

3. working load:  

  (1) current:TO-TX＜0.12Ω       cosΦ=1

  (2) voltage:a-x＜0.25VA        (100V)

4. polarity error indication

There should be polarity error indication when the working current (voltage) exceeds 5% of the rated current (voltage) , or the error more than 180%.

Note: if there was not indication when the working current (voltage) is more than 10% of the rated current (voltage), please stop increasing the current (voltage ), to avoid burn the device.

5. ratio error indication:

There should be ratio error indication when the working current (voltage) exceeds 5% of the rated current (voltage) , or the error more than 30% but less than 180%.

6. explanation for insulation and withstand tests:  terminal TX connects to ( )terminal

 the outlet can bear the shell 1.5kV, 1.5min withstand voltage.

7, transformer calibrator main features:

⑴ use 320 x 240 dot matrix LCD, visible range, with a long-life back light, easy to use;

⑵ English user interface, attractive interface;

⑶ dial indicator, ratio difference, angle difference using large font display, user observation;

⑷ fully meet JJG314-1993 and JJG314-1994 requirements, automatic sampling;

⑸ automatically determine the polarity of the error, ratio error;

⑹ PC software with virtual instruments open function;

⑺ completely solve the S-class measurement problems;

⑻ auto ranging;

⑼ unique circuitry and advanced DSP technology combine to completely remove the RC phase shifter circuit instability.

⑽ power consumption:<15VA (without micro-printer)

<25VA (with micro-printer)

⑾ harmonic rejection ratio:> 40db

⑿ Dimensions: 260mm (length) × 350mm (W) × 150mm (height)

⒀ Weight: 6kG