A handheld PD survey using TEV, ultrasonic and HFCT instruments lets utilities inspect energised switchgear, transformers and cables without outages. This article sets out a practical survey plan that works for distribution substations in any climate.
Handheld Partial Discharge Survey: A Practical Energized Inspection Plan for Substations Read More »
Underground cables carry an increasing share of power in Southeast Asian cities. Oscillating wave test sets assess new cable installations, while clamp-on HFCT sensors provide ongoing PD monitoring for terminations and joints on operating circuits.
Lightning and tropical contamination stress surge arresters across Southeast Asia. Portable leakage current test instruments let utilities check arrester condition during routine patrols – without de-energising the line.
Gas-insulated switchgear in desert environments faces sand ingress, extreme heat and wide temperature swings. UHF partial discharge detection combined with SF6 monitoring gives utilities in Saudi Arabia and the GCC a complete view of GIS insulation and gas integrity.
Monitoring GIS in Desert Environments: Sand, Heat and Partial Discharge Detection Read More »
Utilities in Saudi Arabia, the UAE and the wider GCC are expanding and modernising their networks. Online partial discharge monitoring, applied against IEC-based specifications and designed for desert conditions, is a key element of their asset management strategy.
High ambient temperature, humidity and condensation in tropical climates accelerate insulation ageing and drive partial discharge in switchgear. Understanding the mechanisms helps utilities in Southeast Asia choose the right sensors and monitoring strategy.
Power demand across Vietnam, Indonesia, Malaysia, Thailand and the Philippines is driving both new substation builds and rehabilitation of ageing switchgear. Online partial discharge monitoring is becoming the standard way for utilities in the region to manage insulation risk across a mixed fleet of legacy and new assets.
Zhuhai Huawang Technology Co., Ltd. is listed among the drafting organisations of T/EPTC 002-2022, the group standard for 10 kV intelligent distribution transformers issued by the Zhongguancun Smart Electric Power Industry Technology Alliance. Published on 2022-12-27, the standard defines the sensor, control and intelligent monitoring unit requirements for smart distribution transformers.
Zhuhai Huawang Technology Co., Ltd. is listed among the drafting organisations of the power industry standard for high-voltage ceramic capacitance sensors up to 35 kV. Proposed by the China Electricity Council and currently at the final approval stage, the standard specifies the requirements for sensors used in live-line indication, partial discharge measurement, voltage measurement and energy extraction.
Zhuhai Huawang Technology Co., Ltd. participated in drafting Q/GDW 12082-2021, the State Grid Corporation of China technical standard for wireless sensors in the IoT for power transmission and transformation equipment. Published on 2021-12-06, the standard governs sensor types, naming, identification and testing.