Turns Ratio Meter

According to IEC and relevant national standards, transformer ratio test is a must in the process of power transformer production, handover and maintenance test. This test can supervise the quality of transformer products in the process of delivery and use, and prevent short circuit between turns, open circuit, connection error, internal fault or contact fault of voltage regulating switch.

Our Turns Ratio Meter can measure variable ratio, group number and phase Angle with high accuracy without knowing any parameters of tested power transformer . It's suitable for various transformer testing, such as Z-type transformer, rectifier transformer, furnace transformer, non-hourly shift transformer, equilibrium transformer, Scott transformer and inverse Scott transformer,

Turns Ratio Meter built-in battery, so can conduct test without extra power . With big LCD screen display, very convenient to easy to read data.Turns Ratio Meter can store 1000 groups test data, and transfer it to computer by USB disk.

1.True three-phase test : Single phase power input, internal digital compose into three- phase standard sine wave signal source.Three - phase test power supply is generated through high fidelity power amplifier.

2.With strong function . Not only for single-phase measurement, but also for three-phase winding test automatically , such as polarity and phase angle test . The variable ratio, phase Angle, error, tapping position and tapping value of AB, BC and CA are measured at one time, and the group number can be automatically identified.

3.Phase Angle measurement. Accurate measurement of the phase Angle (0-360°) between the high and low voltage sides, and it can be used to measure the conversion ratio and Angle of non-hourly transformers.

4.Hexagon diagram display function: the test results are displayed by digital and hexagon vector diagram, so that the transformer connection group can be intuitively seen.

5.Blind test function: No need to select connection mode or connection group, no need short-circuit when test Y/△、△/Y transformer, the wiring mode can be automatically switched according to the selected test content .It is possible to measure the variable ratio and group number for transformer without nameplate.

6.Tap test: Turns Ratio Meter can quickly measure the variation ratio and variation ratio error at each tap switch position. Input rated variation ratio one time, he variation ratio error of each tap position can be calculated.

7.With function of measuring turns ratio and operating voltage variation ratio, the operating transformer ratio can more truly reflect the actual value of the voltage transformer under the actual operation.

8.With good vibration resistance ,the use of military connectors enhances the anti-vibration performance.

9.Adopt 5-inch HD LCD screen.

10.Equipped with thermal sensitive high speed micro printer, which can print and save test results at any time.

11.The test source is standard sine digital source ,distortion is less than 0.1%, not effected quality of power supply.

12.Easy to carry: small size, light weight.

13.Equipped with high-capacity lithium ion rechargeable battery, possible to finish 500 times test once full charge.

1.Measurement range: 0.9~10000

2.Measurement speed: finish three phase testing within 35s

3.Measurement accuracy:voltage on HV side 0.05%

voltage on LV side 0.1%

Phase Angle resolution: 0.01°

Phase Angle measurement: 0.1°

Variable ratio resolution: 0.0001

Accuracy of variable ratio measurement: 0.1%（0.9－200）

0.2%（200－2000）

0.3%（2000－10000）

4.Fit to use in field

5.Size: 320×240×130

6.Weight: 2.6Kg

Turns Ratio Meter can test transformer category

1. Three-phase transformer ratio test

Before the three-phase transformation ratio test, you should set the parameters first, press the "set" key or select the "parameter setting" item and press "↲" to enter the parameter setting screen to proceed.

Parameter setting, after setting each parameter, press the "exit" key to return to the main interface and select the "three-phase transformer ratio" test option.

2. Three-phase transformer turns ratio test

Before the three-phase turns ratio test, you should set the parameters first, press the "set" key or select the "parameter setting" item and press "↲" to enter the parameter setting screen to proceed.

Parameter setting, after setting each parameter, press the "exit" key to return to the main interface and select the "three-phase turns ratio" test option.

3. Single-phase transformer test

The operation steps are the same as above

4. Z-type transformer test

The operation steps are the same as above,

After the test is completed, the test result is displayed on the screen. The left side of the screen includes: three-phase voltage and phase on the high-voltage side, three-phase voltage phase on the low-voltage side, tap value, ratio value, ratio error, and group judgment test count times And test status. The right side includes the set parameter values and vector analysis diagram.

4. Scott transformer (T type transformer) test

The operation steps are the same as above,

After the test is completed, the test result is displayed on the display screen. The left side of the screen includes: voltage and phase of the three-phase on the high-voltage side, voltage and phase of the three-phase on the low-voltage side, tap value, transformation ratio, transformation ratio error and low-voltage included angle (∠ αβ), the group determines the number of test counts and test status. The right side includes the set parameters and vector diagrams.

5. Reverse Scott transformer (T type transformer) test

The operation steps are the same as above,

After the test is completed, the test result is displayed on the screen. The left side of the screen includes: three-phase voltage on the high-voltage side, three-phase voltage on the low-voltage side, high and low voltage phases, tap value, measured value of transformation ratio, transformation ratio error, group Do not determine the number of test counts and test status. On the right is the hexagonal vector diagram.

1. What is your after-sale service

We have 10 seasoned technical engineer as the after-sale service team.it is lead by our duty manager. We promise that our engineer can give answers within 1 hour and deal with equipment failure within 24 hours in time.

2. What’s the warranty period ?

Our warranty period is one year .

The product can be replaced within 1 month, can be repaired for free charge for one year and maintenance for lifetime.

What is more, our warranty can be extended only charged small warranty fee

3.Can you provide the product calibration certificate?

Yes, we can issue our factory calibration certificate.

If you require the third-party calibration certificate, it also can be made,just if through the third party, it will be charged!

Was established in 2008. It is located in Huading Mould Industrial Park, Economic and Technical Development Zone, Wuhan City, Hubei Province, China, working area more than 4000 square meters, main products included AC/DC hipot tester, transformer testing device, CT/PT analyzer , etc .