Transformer DC Resistance Tester

Transformer DC Resistance Tester for checking winding resistance in transformer maintenance, OEM/ODM available for utilities, labs, and service contractors.

Transformer On load Tap Changer OLTC Characteristic Tester AC DC Dual Test Method 10kV 500kV OLTC Analyzer

$3,344 /piece

Price varies depending on material, logo, quantity and customization requirements.

MOQ 1 piece
Model NO. EI-7745
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

Accuracy±0.2%Maximum Test Voltage800 V
Maximum Output Current3 AProtection ClassIP55
Display TypeLCD DisplayControl MethodManual Control
Communication InterfaceUSBProduct NameTransformer OLTC Characteristic Tester
Test MethodAC & DC Dual Test ModeSampling Accuracy16 bit
Sampling Rate200KResponse Speed≤15μs
Test Range (Resistance)0.2Ω~40ΩTest Range (Time)2ms~250ms
AC Output Frequency40Hz~60Hz AdjustableAC Output Capacity100VA
Waveform Distortion<2%

We are China Loong Electrical Instrument Co., Ltd., a professional manufacturer and supplier specializing in Electrical Instrument. We have brought together and coordinated resources across the Electrical Instrument supply chain, enabling us to maintain consistent product quality and establish long-term partnerships with clients worldwide.

Our mission is to provide high-quality products and reliable service. We are committed to offering the following advantages:

  • Stable production system ensuring consistent quality, dependable supply, and standardized manufacturing management;
  • Strict quality control covering material selection, processing, surface finishing, and final packaging;
  • Variety of products and specifications to meet diverse project requirements and application scenarios;
  • OEM & customization support based on drawings, samples, or specific technical requirements;
  • Flexible packaging solutions to ensure safe handling and transportation of products;
  • Continuous improvement in products and services to better support customers in different markets.

If you are interested in our products, please feel free to contact us. We look forward to establishing long-term and mutually beneficial cooperation with you.

Copyright © 2026 China Loong Electrical Instrument Co., Ltd. All rights reserved.
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Transformer On load Tap Changer OLTC Characteristic Tester AC DC Dual Test Method 10kV 500kV OLTC Analyzer

SKU: EI-7745

Contact Form (#3)

Home

Products

About

Contact