Variable ratio polarity tester

UHV-200Variable ratio polarity testerAccording to JJG313-94 "Current Transformers for Measurement" and JJG313-93 "Voltage Transformers for Measurement", on-site transformation ratio inspection and testing must be conducted during transformer handover and after winding replacement.

The conventional method for checking the transformer ratio is the current method, which is theoretically an easy to understand and feasible inspection method. However, as the system capacity increases, the primary current of the current transformer becomes larger and can reach tens of thousands of amperes; It is already difficult to apply current to several hundred amperes on site, and it is almost impossible to apply current to several thousand amperes or tens of thousands of amperes. Moreover, due to its large size and weight of several hundred kilograms or tons, it is even more difficult to use it on site. If the low current method is used, the error of the current transformer will increase sharply due to the influence of its magnetic sensitivity, linearity, impedance, and leakage reactance, and the significance of transformer ratio inspection will be lost.

thatmutual inductorVariable ratio polarity testerThe current transformer ratio tester, which is small in size, light in weight, wide in measurement range, easy to carry, and suitable for on-site use, is increasingly becoming a means of transformer testing.

Product nickname: Transformer Ratio Polarity Tester, TransformerVariable ratio polarity tester

Product parameters

Technical specifications

Note:

1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.

2. For more information on ultra-high voltage products, please enter the product center.

Product Features

1. Adopting voltage measurement method, it is small in size, light in weight, portable, and meets the requirements of lightweight on-site work.

2. The voltage waveform is generated by the microcontroller program, which is clean and pure, and eliminates power grid interference.

3. Internally, a constant voltage source is used for stable readings.

4. Suitable for all current transformers ranging from tens of amperes to tens of thousands of amperes, as well as all electromagnetic voltage transformers.

5. Can directly display the transformation value.

6. Electronic method for measuring the polarity of transformers is simple and intuitive.

Product Atlas

Product Attachment Diagram

Instrument host

test line

charger

Product detail images

control panel

button

PT test port

CT test port

power switch

Host outer box

Host package