Henan Zhongbian Electric Co., Ltd.
Henan Zhongbian Electric Co., Ltd. is a provincial high-tech enterprise that develops and manufactures power transformers and distribution equipment. The company is located in Ye County, a famous city in the Central Plains with beautiful scenery and a long history. Covering an area of 30000 square meters, it is a key new high-tech enterprise approved by the Science and Technology Commission of Henan Province. The company has 260 employees, including 89 technicians, 37 with senior professional titles, and more than 80% of the employees have intermediate professional titles and college or techni
Products
10kV station used dry-type transformer
This series of dry-type transformer is specially designed for the centrally installed switchgear and the high-voltage switchgear. It is of a special structure. Under the premise of meeting all the performance parameter indexes as required, the outline dimension design is optimized to meet all the requirements for installation of the centrally installed switchgear and the high-voltage switchgear. This is a relatively ideal supporting transformer for the centrally installed switchgear and the high-voltage switchgear.
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10kV on-load tap changer dry-type transformer
To meet users' requirements for the voltage quality, the Company can also provide the on-load tap changer dry-type transformer that is composed of the transformer body and the on-load tap changer. The transformer and the switch are placed face to face by keeping a distance of 250-300mm. They are fixed separately in normal cases. The switch is in a cabinet shape. Its dimensions do not change as the capacity of the transformer changes. Vacuum switch is adopted. The product can regulate the output voltage under the loaded condition. The voltage can be regulated manually and automatically. The manual voltage regulation means that the voltage can be regulated to a certain value artificially within the tapping scope of the product. Automatic voltage regulation means the automatic voltage regulator is regulated to a small scope within the tapping scope of the product (usually referring to a certain value required by the electric equipment). When the output voltage of the product exceeds this scope (e.g. the change in the voltage of the power supply or the load causes secondary voltage changes), the automatic voltage regulator will emit signals automatically, so that the on-load tap changer can automatically regulate the secondary voltage into the original voltage scope required originally.
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10kV SCB10(11) dry-type transformer
This series of epoxy resin cast dry-type transformer is made of excellent materials with scientific formula as well as advanced production and testing equipment and strict process.
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SG (H) B10-100~ 2500/10 class H insulating three-phase dry-type transformer
This series of products are applicable to severe environments where there are high requirements for fire protection and the load fluctuation is large and also dirty and damp environments, such as airports, power plants, metallurgical operation, hospitals, high-rise residences, shopping centers, dense residential areas as well as petroleum chemical industry, power plants, nuclear submarines, etc.
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The transformer body, high-voltage load switch, fuse protector and high and low voltage wire of the ZG-H(Z) combined transformer are placed in the same sealed oil tank. The transformer oil serves as the insulating medium between the live parts and the ground. This is a new-type distribution device that is compact, small, economical and practial.
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Single-phase dry-type transformer
The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products, keeps improving the product assembly level, performs operation elaborately and provides services wholeheartedly. The company strives to meet national standards in terms of quality and management and keeps pace with the high level in the same industry. In the meanwhile, the Company also inputs more in quality control, actively takes fine detection means and makes efforts to ensure that all the products meet the quality requirements. We make the users reassured by implementing the quality policy of "adopting superb technologies, guaranteeing the product quality, producing quality products and meeting customers' demands".
隐藏域元素占位
The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products, keeps improving the product assembly level, performs operation elaborately and provides services wholeheartedly. The company strives to meet national standards in terms of quality and management and keeps pace with the high level in the same industry. In the meanwhile, the Company also inputs more in quality control, actively takes fine detection means and makes efforts to ensure that all the products meet the quality requirements. We make the users reassured by implementing the quality policy of "adopting superb technologies, guaranteeing the product quality, producing quality products and meeting customers' demands".
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Dry-type grounding transformer
The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products, keeps improving the product assembly level, performs operation elaborately and provides services wholeheartedly. The company strives to meet national standards in terms of quality and management and keeps pace with the high level in the same industry. In the meanwhile, the Company also inputs more in quality control, actively takes fine detection means and makes efforts to ensure that all the products meet the quality requirements. We make the users reassured by implementing the quality policy of "adopting superb technologies, guaranteeing the product quality, producing quality products and meeting customers' demands".
隐藏域元素占位
The Company adheres to the service tenet of "quality upmost and user first", introduces domestic and overseas superb technologies, accelerates the development speed of new products, keeps improving the product assembly level, performs operation elaborately and provides services wholeheartedly. The company strives to meet national standards in terms of quality and management and keeps pace with the high level in the same industry. In the meanwhile, the Company also inputs more in quality control, actively takes fine detection means and makes efforts to ensure that all the products meet the quality requirements. We make the users reassured by implementing the quality policy of "adopting superb technologies, guaranteeing the product quality, producing quality products and meeting customers' demands".
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News
What kinds of tests should be carried out for transformers in operation?
In order to ensure the normal operation of the transformer, the following tests shall be carried out frequently:;
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How to select transformer? How to determine the reasonable capacity of transformer?
First, investigate the power supply voltage of the power consumption place, the actual power load of the user and the local conditions, and then select one by one with reference to the technical data marked on the transformer nameplate. Generally, the transformer capacity, voltage, current and environmental conditions should be considered comprehensively. The capacity selection should determine the required load according to the capacity, nature and service time of the user's electrical equipment, so as to select the transformer capacity.
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What is the nameplate of the transformer? What are the main technical data on the nameplate?
The nameplate of the transformer indicates the performance, technical specifications and application occasions of the transformer, which is used to meet the user's selection. The main technical data for selection are:
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What are the losses of transformers in operation? How to reduce losses?
(1) It is caused by the iron core. When the coil is energized, the magnetic lines of force are alternating, causing eddy current and hysteresis loss in the iron core. This loss is collectively called iron loss.
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What is the voltage change rate of a transformer?
The voltage change rate of voltage regulator is one of the main performance indexes of transformer. When the transformer supplies power to the load, the voltage at the load end of the transformer will inevitably decrease. Compare the decreased voltage value with the rated voltage value, and take the percentage as the voltage change rate, which can be expressed by the formula; Voltage change rate=[(secondary rated voltage load terminal voltage)/secondary rated voltage] × 100%。 Generally, when the power transformer is connected to the rated load, the voltage change rate is 4-6%.
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How is the voltage regulator regulated?
The structure of the voltage regulator is the same as that of the autotransformer, except that the iron core is wound on the ring iron core as a ring coil. A sliding brush contact is used for the tap of the secondary coil to make the contact slip along the loop of the coil surface to achieve smooth voltage regulation.
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What are the components of the transformer?
Transformer components are mainly composed of iron core and coil, as well as oil tank, conservator, insulating sleeve and tapping head.
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What are the types of transformer designs?
There are single-phase and three-phase transformers according to the number of phases. It is divided into power transformer, special power transformer, voltage regulating transformer, measuring transformer (voltage transformer, current transformer) and small power transformer (for small power equipment) according to the purpose. It is divided into core type and shell type according to the structure. The coil has two windings and multiple windings, and the autotransformer is divided into oil immersed type and air cooled type according to the cooling mode.
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How does a transformer change voltage?
The transformer is made of electromagnetic induction. It consists of an iron core laminated with silicon steel sheets (or silicon steel sheets) and two groups of coils wound on the iron core. The iron core and coils are insulated from each other without any electrical connection
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Henan Zhongbian Electric Co., Ltd.
Add: West of the North Section of Longxing Avenue, Yexian Industry Cluster, Pingdingshan City, Henan Province
Email: henanzbdq@163.com
Tel: +86-0375-2318006