The Importance of Progranmed AC Power Source in Voltage Reduced PD Tests
The induced voltage test has been a cornerstone of transformer commissioning, as a power electronics engineer who has spent years on studying the transformer voltage reduce tests with a dedicated ac power. Induced Voltage Partial Discharge (IVPD) in transformers is an electrical phenomenon where localized discharges occur within the insulation system. Voltage reduced tests with a precise AC power source is very important, especially for partial discharge (PD) measurement.
Our DFC-PDC series programmed AC Power Source (variable frequency converter) is suitable for transformer tests. it output 50hz hertz to 500 hertz and single or three phase voltage 0.1v-1000V, or customized frequency and voltage values, flexibly adapt to the electrical testing requirements, Partial Discharge value less than 4PC max 8PC. under the testing process, a stable and adjustable power supply is provided to the equipment, accurately simulating the voltage under different working conditions, effectively triggering potential partial discharge events, thereby helping to detect insulation defects in a timely manner and ensuring the safe operation of equipment.
The programmed AC Power Source could deliver a clean AC power to the experimental equipment by outputting predetermined frequency and voltage values, the partial discharge characteristics of insulation materials at different voltages and frequencies are conducted to assist researchers in developing high-performance insulation materials. It was one kind frequency converter for quality inspection to conduct partial discharge tests on newly produced equipment, especially on transformer, which ensure the transformers meet the partial discharge standards at the time of dispatching to customers.While applying induced voltage, use partial discharge detection equipment to monitor possible partial discharge phenomena inside or on the surface of the equipment.
The Elegant Solution to verify the PD test at factory before delivery: AC Power Source with AC Filter.
The solution is using AC power source, AC power filters, transformer, subcoupling capacitors and PD detector, by increasing the predetermined frequency value for tests—typically to 100Hz, 120Hz, 150Hz, or even higher with different voltage values under no load tests and with load tests, because the transformer is one kind inductive load and its power factor is quite lower-PF: 0.2, so it is recommended to add the compensation capacitors when taking tests.
Enabling Accurate Partial Discharge Measurement: Electrical noise is the enemy of PD detection, the solid-state AC power source provides a perfectly sinusoidal pure sine wave with lower THD. This clean power is essential because any distortion or noise from the AC source itself can be a mistake for a partial discharge event, rendering the test data useless. We focus on quality power source to ensure you’re measuring the transformer’s PD, not the power supply’s noise.
Upgrading your test capabilities? Let’s discuss how a precision AC power source can bring clarity and confidence to your validation process.
