Technical
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The working principle of the high-voltage switch mechanical characteristic tester
The mechanical characteristic tester for high-voltage switches is a specialized device used to measure and analyze various mechanical and electrical time parameters of high-voltage switchgear (mainly circuit breakers) during the opening and closing operations. This equipment can be used to assess...Read more -
Application scope and scenarios of portable partial discharge detector
The portable partial discharge detector is mainly applicable for the insulation status detection of medium and high voltage (typically 3kV and above) electrical equipment. I. Types of Electrical Equipment Suitable for Detection Power cables and accessories Cable body: XLPE cables, high-voltage cr...Read more -
Explanation of the Selection Method for Relay Protection Comprehensive Test Instruments
The selection of a relay protection comprehensive test instrument is a systematic task that requires a comprehensive assessment of test requirements, equipment performance, ease of use, and budget. The following are the core selection steps and considerations: 1. Clarify Core Test Requirements (A...Read more -
Transformer Capacity Characteristic Tester Working Principle and Applications
The transformer capacity characteristic tester is a high-performance portable instrument that integrates multiple testing functions. This instrument is mainly used to measure the actual capacity, no-load loss, load loss, and other key parameters of distribution transformers on-site quickly and ac...Read more -
Cable insulation resistance measurement equipment and measurement methods
The measurement of cable insulation resistance is a crucial test for evaluating the insulation performance of cables and determining whether they can operate safely. The core of this test is to measure the insulation resistance values between the cable conductors and the insulation layer, between...Read more -
Cable insulation resistance measurement equipment and measurement methods
The measurement of cable insulation resistance is a crucial test for evaluating the insulation performance of cables and determining whether they can operate safely. The core of this test is to measure the insulation resistance values between the cable conductors and the insulation layer, between...Read more -
Application scope and scenarios of portable partial discharge detector
The portable partial discharge detector is mainly used for the insulation status detection of medium and high voltage (usually 3kV and above) electrical equipment. The applicable equipment types, application fields and typical scenarios are as follows: 1. Applicable equipment types Power cables a...Read more -
The Composition and Selection Method of Cable Fault Tester
Modern cable fault testing systems generally adopt the “comprehensive testing method”, using the combination of multiple technologies to achieve precise detection of different types of cable faults. A complete testing system mainly consists of a main control unit, a high-voltage signa...Read more -
Main items and equipment description of transformer handover test
Transformer handover tests are a crucial step to ensure the safe operation of newly installed or overhauled transformers. The test items, corresponding equipment, and execution standards are all clearly defined, with the core reference being GB 50150-2016 “Code for Handover Test of Electric...Read more -
High-voltage switch detection test equipment classification and functions
The high-voltage switch inspection equipment is a professional instrument used in the power system to conduct state assessment, fault diagnosis, and performance testing of key equipment such as high-voltage circuit breakers, disconnectors, and load switches. It plays a crucial role in ensuring th...Read more -
Notes on the Selection and Application of Ultra-Light Test Transformers
I. Main Features Light weight, small size: As the most prominent feature, by adopting new materials (such as fiberglass epoxy tubes) and optimizing the design, the equipment weight can be reduced to 1/5 to 1/3 of the traditional oil-immersed transformers of the same capacity. Dry design: Mostly a...Read more -
The inductive and capacitive resistances in series resonance
In the power system, series resonance is a common circuit phenomenon that occurs in a series circuit composed of inductors, capacitors and resistors. When the inductive reactance and capacitive reactance in the circuit are equal, resonance will occur in the circuit, and the circuit will exhibit p...Read more