For newly put into operation or changed lines, it is necessary to check the phase and phase sequence. If the secondary circuit related to parallel connection is changed during the maintenance process, the phase and phase sequence must also be checked. If AC power sources with different phases or phase sequences are connected in parallel or closed, a large current will be generated, which will cause damage to the generator or electrical equipment. Therefore, a phase detector phase check is required. To achieve correct alignment, not only should the primary phase sequence and phase sequence be correct, but also the secondary phase sequence and phase sequence should be correct, otherwise asynchronous alignment may occur.

inNuclear phase analyzerDuring the nuclear phase, the X detector is first brought into proximity or contact with any phase line, and then the Y detector is brought into proximity or contact with other phase lines to become a nucleus. In the case of high-voltage nuclear phase, the detector does not need to directly contact the high-voltage conductor, and the detector hook gradually approaches the conductor. When an electric field is sensed, the detector will emit a beep beep sound and the indicator light will continue to flash, completing the power detection function. Low voltage core phase, especially in distribution boxes, please use metal probes instead of metal probe hooks. For non-contact core phases, if the phase lines are close together, testing should be conducted at a location far away from other conductors.

The nuclear phase analyzer breaks through the voltage level limitations of traditional nuclear phase meters and can achieve automatic phase and 220kV for voltages ranging from 10V to 550kV (such as 400V, 10kV, 35kV, 66kV, 110kV) in extremely low voltage lines. No need to purchase multiple sets of nuclear phase meters or configure high and low voltage detectors according to voltage levels, saving costs, reducing carrying time and speed. For the core phase of high-voltage lines (voltage exceeding 400V), the metal probe hook of the detector can gradually approach the conductor. When inducing electric field signals, the nuclear phase can be completed without direct contact with high-voltage conductors, which is safe! The nuclear phase detector also has functions such as testing phase, frequency, phase sequence, power verification, and transformer group determination.

By adopting power electronic detection technology and wireless transmission technology, the operation is safe, reliable, and easy to use, overcoming many disadvantages of wired phase pickers and meeting the quality supervision and inspection of national power safety tools and instruments. Developing and strengthening high-voltage wireless phase detectors, accelerating the construction of digital substations and heart side intelligent networks based on electricity information collection, will provide support for the large-scale development and utilization of new energy. To meet the needs of economic development and large-scale development and utilization of clean electricity, as well as the imbalance between power generation funds and electricity load area, it is necessary to further strengthen high-voltage wireless phase detectors, optimize equipment capital capabilities and intelligent operation levels.