Transformer Capacity Comprehensive Tester

NegotiableUpdate on 05/06

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The transformer capacity comprehensive tester is designed based on relevant national standards, using advanced digital signal processing technology and high-precision sensors. Without the need for hanging cores, disassembly, or relying on nameplates, the true rated capacity of the transformer can be inferred by applying specific test signals only on the low-voltage side. The core principle is to apply adjustable voltage on the low voltage side, measure no-load current and no-load loss, combine load test data, and use mathematical models to calculate the rated value that matches the standard capacity series with high accuracy.

Product Details

The authenticity of the nameplate capacity, actual load capacity, and accuracy of technical parameters of distribution transformers are crucial in power system operation, electricity inspection, and energy efficiency management. However, in reality, there are a large number of violations such as missing nameplate information, falsely labeling nominal capacity, unauthorized replacement or "substituting small for large", which not only affect power grid planning and line loss calculation, but also may pose safety hazards such as overload and burnout. To solve this problem,Transformer Capacity Comprehensive Testeremerge as the times require. It integrates multiple functions such as capacity determination, no-load loss, load loss, impedance voltage, DC resistance, transformation ratio, and wiring group, and has become an efficient tool for power supply enterprises, testing institutions, and industrial enterprises to carry out comprehensive on-site evaluation of transformers.

This instrument is designed based on relevant national standards, using advanced digital signal processing technology and high-precision sensors. Without the need for hanging cores, disassembly, or relying on nameplates, the true rated capacity of the transformer can be inferred by applying specific test signals only on the low-voltage side. The core principle is to apply adjustable voltage on the low voltage side, measure no-load current and no-load loss, combine load test data, and use mathematical models to calculate the rated value that matches the standard capacity series with high accuracy.

The modern transformer capacity comprehensive tester has multiple outstanding functions:

智能容量判定Automatically compare the no-load/load characteristic curves of ten common models to quickly identify the true capacity;
Comprehensive parameter measurementSynchronize the testing of key parameters such as no-load loss (P ₀), load loss (P ₖ), short-circuit impedance (U ₖ%), DC resistance (R), transformation ratio (K), and wiring group;
Three phase integrated designBuilt in three-phase test power supply, all projects can be completed with one wiring, greatly reducing on-site operation time;
Strong anti-interference abilityBy using digital filtering and phase-locked technology, it can operate stably in distribution network environments with severe harmonics or voltage fluctuations;
Intelligent data managementSupports storing thousands of test records, automatically generating detection reports that meet the format requirements of the power department, and can be uploaded to the management platform through USB, Bluetooth, or 4G modules.

The instrument is easy to operate, usually equipped with a 7-inch or larger color touch screen, with an intuitive interface and a guided menu design that allows non professionals to quickly get started. The whole machine adopts a portable structure, with a weight generally between 8-12 kg. It is equipped with a large capacity lithium battery and supports continuous operation for more than 4 hours, meeting the detection needs in outdoor environments without power supply. At the same time, the equipment has * protection mechanisms, such as automatic cut-off of overcurrent, overheating, and short circuit, to ensure operational safety.

In practical applications, this tester is widely used for:

Electricity inspectionPunish the behavior of users who replace small capacity transformers without authorization to evade basic electricity bills;
Line loss management in Taiwan districtVerify the matching degree between transformer capacity and load, and optimize the operation mode;
Assessment of old equipmentTechnical appraisal of retired transformers without nameplates or with unclear information;
Energy efficiency diagnosisCompare measured losses with energy efficiency standards, identify high energy consuming transformers, and support energy-saving renovations.

For example, a power supply company in a certain city once used this instrument during a special inspection and found that an industrial park had tampered with the nameplate of a 400kVA transformer to 630kVA, resulting in underpayment of basic electricity bills by tens of thousands of yuan. After accurate judgment by the testing instrument, the fees were recovered in accordance with the law and rectification was urged, effectively maintaining the order of power supply and consumption.