Low Impedance Voltage Tester

Introduction

Transformer low impedance voltage tester is suitable for low voltage load impedance test of power transformer (single-phase or three-phase) out of factory, overhaul, pre-test and handover test.

The principle is to test the short circuit impedance (%) of the power transformer in the field, and compare it with the nameplate value or the factory value, and find the defects such as winding displacement and deformation caused by the serious fault current in transportation, installation and operation after the factory test.

Transformer low impedance voltage tester , without external voltage regulator, primary wiring, only need to input parameters, can automatically carry out three-phase test and automatically calculate the percentage of impedance error, the test results are very intuitive, Is the field test transformer has the winding deformation fast test instrument.

Hot tags:Transformer short circuit impedance tester，transformer tester, short circuit impedance tester

Main parameter

Range of voltage measurements：5～400V

accuracy：0.2 class

Current measurement range：0.1～20A

Power supply：AC220V±10%

power frequency：50（±1）Hz

working temperature ：-10℃～50℃

Ambient humidity ：≤85%RH

Host net weight：8Kg

Host measuring size：405mm*330mm*172mm

Feature:

1.Using AC220V low voltage power supply, the instrument can automatically apply current to the AB、BC、CA high voltage winding of transformer, collect data synchronously, and calculate the percentage of impedance error automatically. The test results are very intuitive

2.One-time wiring, three-phase test can be completed automatically without connecting test lines。

3.The instrument can be single-phase or three-phase; it can be tested manually or automatically。

4.With output current limiting function, suitable for arbitrary impedance test.

5．Measurements can be made without external voltage regulator.

6．Function of measuring zero sequence impedance.

7．Function of measuring inductance.

8．Large screen LCD, English menu, very simple operation, according to the screen prompt can complete the operation.

9．It has the features of printing and storage, high test precision, high automation level, small volume and light weight.

Packing list

Precautions for internal-external power supply

1. For normal use of the instrument, it can be powered by AC220V, without an external voltage regulator. The "inside-outside" button on the left end of the instrument is in "in".

2. If an external voltage regulator needs to be used under special circumstances, the "in-out" button at the left end of the instrument is at "out", and the external AC input uses the red-black wiring terminal at the upper left corner of the instrument.

Order and service

1. The instrument will be guaranteed free for product quality problems within one year from the date of leaving the factory; the company will only charge the material cost for damage caused by other reasons. After the warranty period, only the maintenance cost will be charged.

2. The company provides lifetime maintenance and technical services for the products.

3. If the instrument is abnormal, please contact the company in time to provide you with the most convenient solution. Do not disassemble by yourself!