MY‑124 Transformer Winding DC Resistance Tester for Power Transformer Winding

Product Specification

MY‑124 10A Transformer Winding DC Resistance Tester is a professional testing instrument for measuring DC resistance of transformer windings. It is widely used in power plants, substations, power‑supply bureaus and transformer manufacturers for factory test, hand‑over test and preventive maintenance test of power transformers. This portable tester adopts high‑precision measurement circuit, supports large test current up to 10A, realizes fast and stable resistance reading, and effectively detects winding broken strands, poor contact and welding faults.

Features
1. DC resistance tester is for Yn, Y, and △ windings, three-phase measurement can be used to test and calculate the three-phase unbalance rate.
2. The maximum output current of the test power supply is 20A, and the maximum test range is 25k Ω, which meets the testing requirements of the vast majority of transformers; And it integrates magnetic assistance and demagnetization functions to meet various on-site testing needs.

Overview

For power systems, transformers are core equipment. Their long-term and reliable operation directly impacts the stability and reliability of the entire system.

Transformer DC resistance testing is essential during manufacturing final inspection, installation, commissioning, and utility preventive maintenance. It effectively identifies defects such as suboptimal coil material selection, welding issues, loose connections, missing strands, broken wires, and post-operation hazards. To meet the demand for rapid transformer DC resistance measurement, our company has developed this tester leveraging proprietary technology. This instrument integrates assisted magnetization testing, three-phase testing (Yn, Y, △), and demagnetization into a next-generation rapid tester-an ideal solution for measuring DC resistance in large power transformers. It features a true-color high-resolution LCD touchscreen with a rotary navigation knob for field operation. Chinese menu prompts enable intuitive operation. All resistance tests are completed with a single wiring setup, offering high speed, accuracy, and wide measurement range.

Technical Parameter

Company Profile

Founded in 2008 and based in Wuhan, China, we are a high-tech enterprise specialized in R&D, production, sales, OEM/ODM customization and after-sales service of power testing and high-voltage inspection equipment.

We keep enhancing independent innovation, upgrading factory facilities and adopting digital management systems. With reliable quality and good reputation, we have built worldwide customer networks and gained global trust. We sincerely look forward to long-term cooperation with you for mutual development.

Pre-sales Consulting Service
We provide comprehensive and professional pre-sales consulting services. Dedicated sales staff and senior technical engineers are arranged to answer customers’ questions regarding products, technologies and cooperation on a one-on-one basis. We deliver complete and detailed product information throughout the whole process to help customers fully understand product parameters, performances and usage details. All products are reasonably priced with high cost performance to ensure customers get value for money. All quotations are officially verified and stamped by the management team with authenticity and compliance guaranteed. Customers are warmly welcomed to visit our factory for field inspection and business negotiation.
Contract Performance Service
A formal sales contract and supporting technical agreement will be signed by both parties upon confirmation of cooperation intention. Adhering to the principle of integrity, we strictly comply with all clauses of signed contracts and technical agreements to ensure smooth and efficient project implementation. We maintain efficient communication throughout the cooperation, actively follow up with customer demands, and record customers’ inquiries and project schedules in detail to provide continuous professional technical docking and support. In all links including delivery, installation, commissioning and operation training, we respond to customer needs promptly and deliver high-quality services with efficiency and professionalism.
Packaging & Delivery Lead Time
We will arrange product delivery within 5-20 working days after receiving the confirmation of customer payment. All products are professionally packed with high-strength sturdy cartons or wooden boxes. The durable packaging effectively prevents collision and damage during transportation, ensuring the safe arrival of all goods at the destination.

Shipping & Transportation Solutions
We offer diversified logistics solutions including express air freight, sea freight and railway transportation. We can recommend the most cost-effective and suitable shipping solution according to customers’ delivery time, budget and destination requirements. If customers appoint their own forwarders, we will fully cooperate and provide a complete set of official customs clearance documents to ensure smooth customs clearance. After shipment, we will continuously track the logistics progress until the goods are successfully and intactly received by customers.

Warranty & After-sales Service
We take 100% customer satisfaction as our core service goal. Customers may feedback any product problems at any time, and we will follow up and resolve issues properly in a timely manner. All products are covered by one-year free warranty and lifelong free technical support. We promise to provide exclusive professional solutions within 24 hours upon receipt of customers’ product fault and usage feedback to efficiently solve after-sales problems.

FAQ
1.Are you factory or trading company?
We are a professional manufacturer based in Wuhan, Hubei Province.
2.What is the MOQ?
Please contact our sales team for detailed MOQ.
3.Production & Delivery Time
Standard products: 3-5 working days delivery.
4.Custom orders: around 20 days, subject to quantity and specifications.
5.Payment Terms:50% T/T deposit in advance, 50% balance before shipment.
6.Can I customize products?
Yes, we support full customization according to your technical requirements.

Product Gallery