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Some Common Sense about Transformer Some Common Sense about Transformer -
Relevant requirements on transformer room door Some transformer doors do not need fire protection, and some transformer doors do not need fire protection -
Fault analysis and treatment of transformer Fault analysis and treatment of transformer -
Technology and application of dry-type transformer Technology and application of dry-type transformer -
Classification and rated parameters of transformers Classification and rated parameters of transformers -
Selection of transformer cooling mode Selection of transformer cooling mode -
Listen to identify transformer faults Listen to identify transformer faults -
Analysis of parallel operation of transformers In power plants and substations, transformers are important electrical equipment. In order to improve the reliability and flexibility of power supply, reduce energy loss, and ensure economic operation, two or more transformers are usually operated through the same bus connection between terminals with the same polarity at the primary side and the secondary side -
Daily maintenance knowledge of transformer This paper introduces the common transformers in detail, including the structure principle, operation maintenance and patrol inspection of transformers, -
Analysis on selection of dry-type transformer Abstract: This paper introduces the matters that electrical engineers should pay attention to when selecting dry-type transformers, mainly from the temperature control system of dry-type transformers, protection methods of dry-type transformers, overload capacity of dry-type transformers and other aspects. -
Brief analysis of transformer type and structure The transformers used for energy transmission and distribution are power transformers, such as step-up transformers and step-down transformers; There are also transformers for other purposes, such as rectifier transformers, voltage transformers, current transformers, and autotransformers. -
Fault analysis of distribution transformer When the transformer winding is burnt out due to interlayer or turn to turn short circuit, the transformer will give out the sound of "gurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgur. There are many factors that cause abnormal noise in transformers, and the fault location is also different. Only by accumulating experience continuously can accurate judgment be made. -
Bidding Document of a Transformer Equipment Bidding documents of a transformer equipment, including bidding instructions and technical requirements -
General Analysis of Distribution Transformer Faults When the transformer is powered on or tested after shutdown, it is often found that the voltage is abnormal, such as two phases are high and one phase is low or the indication is zero; The three-phase voltage of some newly put into operation transformers is very high, causing some electrical equipment to burn out due to high voltage -
Comparison of SCB10 and SCB11 transformers This paper compares SCB10 and SCB11 in terms of energy conservation and investment cost in detail. From the comparison results, SCB11 does not save operating costs for users in the limited life cycle, but has higher comprehensive investment. -
Installation inspection record of a transformer This document is the installation inspection record of a transformer. The contents are complete and can be downloaded -
Detailed Rules for Load Measurement of Distribution Transformer In order to strengthen the management of public distribution transformer load of our company, and accurately reflect the actual situation of public distribution transformer load. These regulations are formulated in accordance with the relevant regulations of the state, provincial companies and Dongguan Power Supply Bureau and in combination with the actual situation of our company -
Selection and application of dry-type transformer Selection and application of dry-type transformer -
Fault analysis and diagnosis of power transformer Fault analysis and diagnosis of power transformer -
Straight line fitting of transformer loss curve At present, it is difficult to calculate the daily loss of large transformers in the general power industry. In this paper, a shortcut to estimate transformer loss value is obtained by fitting the transformer loss curve with a straight line and skillfully using formula transformation. -
1. Design of power transformer simulation model Under the programming environment of Matlab, this paper analyzes the current methods of transformer simulation. In the case of single-phase, the phenomenon of saturated and unsaturated inrush current and the characteristics of single-phase inrush current are analyzed. In the case of three phases, on the basis of piecewise fitting and curve compression, two modified arctangent functions and two modified arctangent functions are added respectively -
Installation layout of equipment in transformer room The installation layout of 10KV power transformer is introduced -
Calculation of parallel circulating current of two transformers By calculating the parallel circulating current of two transformers from different places, different power supply routes and different manufacturers, the feasibility of parallel connection of two transformers is explained. The misunderstanding of transformer paralleling for a long time is pointed out. -
Selection of dry-type transformer in engineering application Selection of dry-type transformer in engineering application -
How to strengthen the optimal configuration of distribution transformers The protection configuration of distribution transformer mainly includes circuit breaker, load switch or load switch plus fuse. Load switch can save investment, but can not break short circuit current; The technical performance of the circuit breaker is good, but the equipment investment is high and the use is complex; The protection configuration mode of combination of load switch and fuse can avoid the use of circuit breaker with complex operation and expensive price. This paper briefly describes the distribution transformer -
How to Select Transformer Correctly in Dwelling Houses How to Select Transformer Correctly in Dwelling Houses -
Fault Analysis and Treatment of Power Transformer Fault Analysis and Treatment of Power Transformer -
Development and application of energy-saving transformer SN9 series agricultural transformers are energy-saving transformers jointly developed by Jilin Electric Power Research Institute and Jilin Electric Power Co., Ltd -
How to use transformer insulation grade and IP How to use and protect the insulation grade and IP of the transformer to ensure that the transformer can be dust-proof and waterproof when used,..., At the same time, it can ensure the selection of protection grade, which is conducive to how users protect,... -
GB1094-2-1996 Power transformer (temperature rise) This document is GB1094-2-1996 Power Transformer (Temperature Rise), which is detailed and can be used for reference. -
Measures to reduce consumption, save energy and increase efficiency of transformers_ Transformer is one of the most widely used and most efficient equipment in electrical equipment. Generally, the efficiency of 10 (6) kv transformer is 98-99%. Although the efficiency of transformer is high, it is used as a power supply equipment and needs to be powered on for a long time. When the transformer capacity is not fully utilized, the operation efficiency is low. In addition, due to the three-phase imbalance and load system of transformer -
Record of power transformer installation disclosure This data is the record of the installation disclosure of power transformer, including: the capacity, specification and model of the transformer must meet the design requirements. The accessories and spare parts are complete, with factory certificates and technical documents. The design is accurate and detailed, which can be downloaded by designers for reference. -
Zhonghui Xiyuan transformer protection scheme This project is Tianjin Zhonghui Xiyuan Square Project. Overhead high-voltage lines across Binhe Road are introduced into the southwest corner of the site foundation pit. They penetrate into the ground from the bushings on the three poles and lead to three transformers on the fence at the northwest corner. The transformers are about 3.5M away from the ground and the power supply voltage of the high-voltage line is 400KVA. Because the external power at the transformer is introduced from the underground, only the transformer and part of the high-voltage are exposed -
Operation Instruction for Transformer Test 1 Scope of application Transformer test 2 Preparation before transformer test (1) Before the test, the test contents, working conditions, process, site conditions, etc. should be understood in detail and the test objects should be carefully checked to determine the test scheme and safety measures. If there are special circumstances, special treatment measures should be taken (2) Before the test, the test contents should be understood and the working equipment, machines and tools -
Shock recording materials for transformer transportation If the transformer is not equipped with an impact recorder, it should be noted here, and the appearance inspection results of the transformer should be filled in; -
Measures to reduce consumption, save energy and increase efficiency of transformers According to the characteristics of comprehensive energy consumption of the company's transformers, the important role of enterprise distribution transformers in the field of energy conservation is introduced. Through theoretical analysis, research and practical application, organize the economic operation of the company's transformers, the power saving operation of transformer tap changers, balance the three-phase load of transformers, and adjust the load curve to reduce transformer losses. -
10KV transformer commissioning scheme_secret Three 10kV oil immersed transformers and six dry-type transformers are used in the substation of Angelu Power Station. Transformers have different capacities and sizes. -
Removal scheme of an electric furnace transformer Electric furnace transformer HKSSPZ-18000/110 1 set (hauled to the designated warehouse) Product parameters: rated capacity 18000KVA, rated voltage 112500/425V, rated current 92.5/24452A, cooling mode OFF, voltage regulation mode on load, connection group label Ynd11; Product weight: -
Power transformer installation disclosure record 1 Power transformer installation disclosure record document
