Product Specifications
Product Description
Application:
Transformer Ohmmeter, also called transformer resistance tester. It is mainly used to test transformer winding resistance.
TO712C Transformer Ohmmeter is mainly applied for factory test in transformer manufacture, verifying the factory test reading, or finding out the presence of the defect in on-site transformer.
To test transformer winding resistance can effectively find the defect as follow:
Short circuit, open circuit, wrong wire connection in electric circuit
Welding defect of winding wire, between winding and leads
Whether tap switch, leads and the casing keep good contact
Whether coil specification meet the requirement of design
The instrument adopts new constant-current technology, with the advantages of constant output, low loss, greatly improve the measure precision. Also, The additional demagnetization function can effectively reduce the residual magnetization upon completion resistance test.
The whole tester is controlled by Single-chip Microcomputer, having the functions of automatic self-test, data processing, display & other functions, and also it has automatic discharging and discharging indicator functions.
The tester for high testing precision, simple operation, can realize the rapid measurement of transformer resistance. It is very suitable for winding resistance test of the transformer with high resistance.
Product Features:
Used for winding resistance test of the transformer no more than 240MVA
Large current output(20A maximum output)
Less loss and high reliability constant-current source
Wide measurement range(0Ω-20kΩ),
High precision, minimum resolution up to 0.1μΩ
Demagnetization function for reducing the residual magnetization upon completion resistance test
Automatic temperature conversion
Anti-arcing protection function for inductive test item
Large LCD for clear data display
Permanent calendar, 100 groups of data saving, no data loss upon power off.
USB interface for exporting data, convenient for data view.
RS485 port is available for connecting with PC and realize the remote control with combining the PC operation software.
Discharging sound warning, clear discharge indication reduce the misoperation possibility
Protection warning function for incorrect power supply of AC380V
Technical Specifications:
Output current: 20A\10A\3A\1A\15mA
Output voltage: DC50V
Measurement range:
0Ω~1Ω (20A)
2MΩ~2Ω (10A)
6MΩ~8Ω (3A)
20MΩ~24Ω (1A)
20Ω~20kΩ (15mA)
Accuracy: 0.2%± 0.5μΩ
Minimum resolution: 0.1μΩ
Working power: AC220V± 10%, 50Hz± 1Hz
Working temperature: -20~40C
Relative humidity: ≤ 80%RH, no dew
Dimension: 420mm× 340mm× 200mm
Weight: 10 Kg
Order Information
Item Art. No.
TO712C Transformer Ohmmeter 1 set
Test leads 1 set
Three- core power line 1 piece
10 A type fuse 2 pieces
Optional for Order
1. APT Business Scope
ATP Power Technology Co., Ltd., Xi'an( briefed APT), is one subsidiary of NWEPC Group China, located at Xi'an Hi-Tech Develop Zone, China, mainly engaged itself in following business:
Research & Development for products of electrical test & measure;
Manufacturing for products of electrical test & measure;
Provide Solutions for Electrical Test in the field of Transformer, CB, Cables and Generators, etc.
Provide Electrical Test Equipment, such as Primary Current Injection Test Set, Secondary Injection Test Set, Hipot test set for AC/DC withstand Test Set, etc.
Provide Electrical Measure Instrument, such as TTR, Transformer Ohmmeter, High Insulation Resistance Test, DLRO, C & DF, Earth Resistance Tester, Oil Tester, Vacuum Bottler Tester, etc.
Provide customer site service if necessary.
2. APT Advantages
We can discuss all kinds of technical issues with customers in English clearly;
We can provide solid quality products & technical service with competitive price;
We focus on each details so that our customer can operate the instrument easily
We can provide product according to customer made;
3. APT Quality Promise
100% factory test. Only factory test passed, its delivery can be permitted;
All function and parameter are equivalent to or better than contract specifications specified.
The standard for product design and production, equivalent to or better than International Standard
4. APT Service Promise
Free technical support for our products
Free maintenance for our products within guarantee term
Customer site service at cost price
All we do to satisfy our customers;
5. APT Perspective
Export the best Chinese products and service to the world;
APT will be one company both service and application oriented;
Help our customer success, growing together with our customers.
