Transformer Load And No Load Loss Tester

A: This is a portable testing instrument specifically designed for the power industry. Its core function is to accurately measure the two key types of transformer losses—no-load loss (iron loss) and load loss (copper loss)—in the field, in workshops, and at substations. It also measures a full set of parameters, including no-load current, impedance, voltage, actual capacity, and energy efficiency rating, to quickly determine whether a transformer meets specifications, exceeds energy consumption limits, or has hidden internal faults.

A: No-load testing evaluates the condition of the transformer’s core, identifying issues such as damaged core laminations or magnetic circuit abnormalities; load testing evaluates the condition of the coil windings, verifying winding resistance and voltage-carrying capacity. Under standard conditions for routine acceptance, annual inspections, and factory quality control, both tests must be completed simultaneously, and the data must be archived to meet compliance standards.

A: In addition to core losses, it can fully automatically measure and calculate the transformer’s rated capacity, three-phase imbalance, power factor, and short-circuit impedance. It can also automatically match and determine energy efficiency ratings for the entire series, including S11, S13, and S20, eliminating the need for manual recalculation or conversion. .

A: The dedicated portable field model features a built-in test excitation power supply. It is compact and lightweight, allowing for direct operation in outdoor pits, older substations, and temporary construction sites. No external high-power voltage regulators or reactive power compensation units are required, and a single operator can complete the wiring setup.

A: Universal compatibility across all categories, covering oil-immersed, dry-type, prefabricated, amorphous alloy, and high/low-voltage distribution transformers. Standard models fully cover the entire range of common capacities from 20 kVA to 100,000 kVA, suitable for testing residential, industrial, and utility main transformers.

A: It fully complies with national standards and on-site testing procedures for the power industry. Measurement accuracy meets regulatory standards, and the issued paper and electronic test reports can be directly used for factory filing, power grid handover acceptance, third-party energy efficiency spot checks, and energy-saving filing and archiving. They are universally valid across all scenarios.

A: Fully automated one-button operation with a large-screen Chinese touchscreen interface. It features built-in intelligent anti-misconnection programs and voice prompts guiding wiring steps. No professional high-voltage operation certification is required; after reviewing the simple manual, you can independently complete the full test in just 10 minutes.

A: The entire testing process operates in a low-voltage closed-loop environment with no external high-voltage output. It features multiple safety protections: automatic shutdown upon wire disconnection, wiring error alarms, overcurrent and overload interlock protection, and electromagnetic interference shielding. This ensures maximum safety during on-site operations and adapts to complex live-line environments.

A: The device features built-in high-order digital filtering algorithms and synchronous sampling anti-interference modules, specifically designed for high-interference environments such as those near substation frequency conversion equipment and high-power motors. The data remains stable and real-time without fluctuations, and retest consistency is extremely high, ensuring that environmental conditions do not affect the test results.

A: Voltage and current accuracy are Class 0.2, and power loss accuracy is Class 0.5. This fully complies with the on-site preventive testing standards of State Grid and China Southern Power Grid, and meets all requirements for factory type tests by transformer manufacturers. It passes tender project acceptance inspections directly, with unquestionable accuracy.

A: Standard configuration includes a full suite of data archiving functions: the device can store hundreds of sets of test log data; it features a built-in thermal printer for on-site generation of compliant test reports in seconds; it supports one-click export of Excel data and original PDF reports via USB, allowing direct backup to computers or USB drives for convenient long-term archiving of test logs.

A: The instrument features a built-in database of all versions of energy efficiency standards. Upon completion of the test, it automatically compares the results against national standard limits and instantly determines whether the transformer’s losses exceed the threshold or if it qualifies as an energy-inefficient, outdated device. It then provides direct recommendations—such as “compliant,” “downgrade for use,” or “phase out and replace”—eliminating the need for manual verification against records.

A: Dual power supply modes adapt to all scenarios: Connect directly to 220V AC mains power indoors; for outdoor locations without power outlets, choose the model with a built-in high-capacity lithium battery, which can perform a full set of tests on multiple transformers on a single charge, ensuring reliable operation even in the event of a power outage in the field.

A: The entire unit features an industrial-grade, triple-proof housing that is dustproof, moisture-proof, and impact-resistant, making it suitable for high-frequency fieldwork at construction sites, outdoors, and at substations. Core components are carefully selected from leading brands and undergo comprehensive aging tests before shipment. Under normal operating conditions, the instrument is virtually failure-free, making it ideal for long-term, high-frequency field use by engineering teams and O&M crews.

A: The standard warranty for the entire unit is 1 year, with free lifetime maintenance for the core unit. We provide complimentary remote video technical guidance, remote wiring instruction, and remote instrument calibration and debugging. Customers making bulk purchases can schedule on-site training, ensuring a worry-free experience throughout.