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Contact: Andy Zhang
Company: Chongqing Junsun Mechanical & Electrical Ltd
No. 33 Xijiao Road, Jiulongpo District
Chongqing 400050
Phone: +86 23 88529890
Fax: +86 23 88529890
E-Mail: Send Inquiry
Date/Time:  1/16/20 6:27 GMT

JS-802 High Performance Automatic Transformer Turn Ratio Meter

Andy Zhang
Tel: +86 23 88529890
Mobile: +86 13696443439
WhatsApp/WeChat: +86 13696443439
Skype: zxy.export
https://www. ,

JS-802 High Performance Automatic Transformer Turn Ratio Meter

Used to measure the voltage ratio of three or single phase transformer. All the
data and test results are showed on a 320*240 LCD. All the test results could
be printed by the micro printer or saved on the storage of the tester. The
tester has a good performance on auto protection and anti-disturb.

Main Functions:
1.The voltage ratio measurement of three or singe phase transformer
2.The group vector measurement of three phase transformer.
3.The polarity measurement of single phase transformer or CT/PT
(CT that knee-point voltage should be more than 80V)
4.Voltage ratio error calculation
5.Voltage ratio range calculation of three phase transformer
6.Current transformer ratio measurement
7.Excitation current measurement in ratio testing
8.Reproduction the AC test voltage from power source to reduce the effects of
bad power source
9.Save the test results in the memory internal the tester
10.Print the test results by micro printer
11.Reverse connection detect unit to prevent the high voltage injected to the
12.Over current protection in test voltage
13.Upload the test results to make word report by RS232 interface

Technique Index:
1.Ratio measurement range:1—10000
2.Group measurement:1—12
3.Phase measurement error:1 degree
4.Ratio measurement error:1—2000 ± 0.2% 2000—10000 ± 0.5%
5.Power supply:AC220V ± 10%, 50Hz
6.Size 400350200 mm3 Weight 7kg

Minimum Order: 1 sets

JS-802 High Performance Automatic Transformer Turn Ratio Meter
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SOURCE: Import-Export Bulletin Board (
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