Низковольтные распределительные устройства

Low Voltage Switchgear I.Overview GCSLow Voltage Switchgear (hereinafter referred to as the device) are two joint post according to the competent industrial department, general electric power users and the requirement of the unit is developed with the situation of China's design, high technology performance index, can adapt to the electric power market development needs and introduced the existing products with competitive pressure drawer-type switch. This device in July 1996 in Shanghai by two jointly hosted by production since the identification of units and power use department and affirmation. It applicable to plant, petroleum, chemical, metallurgical, textile, high-rise building industries of distribution system. In large power, petrochemical system with high automation degree, computer interface, as 3-phase ac frequency for 50 (60) rated speed, working voltage for 380V 600V (for) and rated current 4000A and under the power supply system, and motor control and reactive power compensation use of low-voltage distribution device. II.Use conditions 2.1 Air temperature than 40 ° c + +, no less than 5 ° c, and 24h - within its average temperatures above 35 ° c + + not. 2.2 In the highest temperature, relative humidity, not more than 50% in low temperature, high relative humidity is allowed twenty degrees Celsius, for example for 90 +, but should be considering temperature changes, may have accidentally produce moderate condensation. 2.3The altitude not more than 2,000 meters. 2.4 Installation does not exceed 5 ° tilt. 2.5No dust, corrosive gas or rain indoor. III.Structure characteristics 3.1 The main structure, equipment, and by using steel frame welding assembled and part two main frame structure form, have installed modules E = 20mm installation holes. 3.2 Each compartment, device and its strict separated mainly divided into the compartment functional units, bus cable chamber, each unit, the relatively independent functions. 3.3 The device will be on the top level of the mistress line of traditional design, make the cable chamber were has solved the old products, not on the problem. 3.4 Feeder ark and motor controller has special cable compartment, functional unit room and cable connection between indoor cable transfer through transfer or copper platoon, convenient in installation of cable with user maintenance. Cable compartment has two width size (240mm or 440mm) alternative, user visual cable quantity, section and user requirements for easy installation and maintenance. 3.5Device functional unit, a unit and the logarithm auxiliary contacts for 32 to 1 above the 2 units for 20 to meet user interface with a computer and automation considering that dry type transformer USES ordinary, safety and efficiency of oil-immersed transformer, the device can easily to form a group of dry type transformer, and can also busbar voltage oil-immersed transformer is convenient connection. 3.6 As the main body, and with drawers with drawer-type and stationary, can press reasonable way, orange. 3.7 Device by five lines and three-phase system design, three-phase four-wire type design department and users can easily chosen PE + n. PEN or. 3.8 The cabinet put oneself in another's position, IP40, IP30 level for protection, user can choose according to need. IV.Product package Our factory offers the following documents supply general and accessories: 4.1 Product certification 4.2 Use manual 4.3 Relevant electric drawings 4.4 Cupboard door key handles and contract of spare parts 4.5 Main component installation instructions V.Notice When ordering should provide the following information: 5.1 The whole model (l products including the main circuit scheme and auxiliary circuit scheme), 5.2 Main circuit system combined sequence diagram (arrangment diagram and wired system graph), 5.3 Auxiliary circuit principle diagram (user to electrical design), 5.4 Ark components list, 5.5 The products of other normal use special requirements.