Company Name: Zhejiang Zhong Kai Technology Co., Ltd. Headquarter Location: Wenzhou, Zhejiang Established Time: 1992 Business Scope: KB0 Series Control and Protection Switch Company Nature: Annual turnover of private enterprises: 200 million employees: 500 product overview, product model, other features, product functions, differences, working conditions, applicable places, precautions and product overview KB0 products adopt modular single product structure. It integrates the main functions of traditional circuit breaker (fuse), thermal relay, contactor, overload (or overcurrent, phase failure) protection relay, starter, isolator, etc., and has the functions of remote automatic control and local direct manual control, panel indication and electromechanical signal alarm, overvoltage and undervoltage protection, phase failure protection and coordination. By selecting functional modules or additional files as required, various motor loads and distribution loads can be controlled and protected. KB0 is mainly used in power systems with AC 50Hz(60Hz), rated voltage below 690V, rated current 3A to 100A, and adjustable working current 0. 12A to 100A. Under normal conditions (including specified overload conditions), KB0 can connect, carry and break the specified current. In terms of structure and function, KB0 series products are no longer a single product such as contactors, circuit breakers or thermal relays, but a set of control and protection systems. Its appearance fundamentally solves the problem of uncoordinated control and protection caused by unreasonable selection of traditional discrete components (usually circuit breaker or fuse+contactor+overload relay), especially overcomes the problem of uncoordinated protection characteristics and control characteristics when combining electrical products with different assessment standards, and greatly improves the operational reliability and continuous operation performance of the control and protection system. Product model KB0 -B digital basic control and protection switchgear KB0 -E liquid crystal advanced control and protection switchgear KB0 -F fire control and protection switchgear KB 0 -G isolated control and protection switchgear KB0 -L leakage control and protection switchgear KBO KB0 -T communication control and protection switchgear KB0-D two-speed control and protection switchgear. Protection switchgear KB0-D3 three-speed control and protection switchgear KB0 N reversible control and protection switchgear KB0J star triangle decompression starter KB0 Z autotransformer KB0 R resistance decompression starter Other features A. Complete auxiliary contacts and signal alarm contacts, shunt tripping device, long-distance recloser, door or drawer panel operating mechanism, control circuit conversion module, etc. , can form a complete control and protection unit on a single product, and realize coordinated control and protection functions. B. installation is flexible. horizontal installation, vertical installation and horizontal installation will not affect performance. It can be widely used in compact complete sets of equipment, including fixed or drawer MCC cabinets, especially KB0-12, 16, 18, 32 and 45 in12 drawers, and has unparalleled advantages in separating components. C. Safe, reliable and highly protective terminals connected in front of the board and behind the plug board have finger touch prevention function. Equipped with a high protective shell, it can be used in damp places in civil buildings, basements, pump houses, coal mines, ports, ships, petrochemicals and other fields, and is an ideal product to replace electromagnetic starters, protective starters and combined starters. Instantaneous short-circuit protection of product function: the protection current is related to the rated current of the switch main body, and its setting current is 20%, and the action time T4 is less than or equal to 2 ~ 3 ms Instantaneous short-circuit protection: the protection current is related to the rated working current of the electronic release. Setting current 16in 15%, action time T3 less than or equal to 0.1ms. Short-circuit short-delay or fixed-time protection: the protection current is related to the rated working current of the electronic release. Its setting current panel is adjustable (6 ~12ir1)15% (motor protection), (3 ~ 6IR 1) 10% (power distribution protection), and the setting time of delay action t2=0.2s Overload long delay protection: The setting current Ir 1 panel can be adjusted by 0.4 ~ 1IE, and the inverse time characteristic is i2t = (1.5 IR 1) 2t 1, and t1is a long delay current1. T 1= 128s motor open-phase and open-phase protection: action setting time is 2s; Three-phase unbalanced protection: any two-phase current difference exceeds 50%; Action setting time is 2s overvoltage protection: three-phase 47010v; Action setting time is 5s undervoltage protection: three-phase 27010v; Action setting time 5s Start delay: short circuit delay or no protection within a certain time limit, setting time 2s Fire connection: DC 24V fire interface output (optional) Leakage protection: residual current is customized according to customer requirements, action time ≤0. 1s (delay type is 0.3s) (optional) Pre-alarm function: current adjustable online programming function, fault indication test function, differential and differential function, The control and protection function of KB0 series control and protection switchgear is equivalent to that it well solves the matching problem of protection and control characteristics between components which can not be solved or difficult to be solved by separate components, and makes the matching of protection and control characteristics more perfect and reasonable (with inverse time limit, fixed time limit and instantaneous three-stage protection characteristics). As long as a single product can be selected correctly according to the load power or current, it can replace all kinds of electrical appliances from the power supply inlet to the load end without reducing the capacity. The workload of designers is greatly reduced. KBOCPS 2 has operational reliability and continuous operation performance of the system, and KB0 can be put into use without maintenance after flowing, that is, it has continuous operation performance after breaking short circuit fault: KB0 still has AC-44 electrical life of not less than 1500 times after breaking short circuit current test, which is very difficult for a system composed of discrete components such as circuit breakers. This feature of KB0 greatly improves the reliability and continuous operation of the system, among which 80kA Ics index is the leading in the world and the highest among similar products in China. 3. Energy-saving and material-saving KB0 is small in size, small in installation area, and free from contact of separating elements, thus reducing line heating and saving energy and materials. 4. Compared with molded case circuit breaker, a. KB0 has the characteristics of high breaking capacity and short arcing distance. At 380V, the rated short-circuit breaking capacity ICS (O-Co-Co) of KB0 reaches 80kA, standard 50kA and economical 35kA. Under the expected short-circuit current of 50kA, the breaking time is only 2 ~ 3 ms, and the current limiting coefficient is below 0.2, reaching the leading level of plastic case circuit breaker. The arcing distance of KB0 is only 20 ~ 30mm. Both the thermal trip (inverse time limit) current and the magnetic trip (fixed time limit) current of KB0 can be adjusted on the panel, that is, in addition to the conventional thermal protection current, the setting current of overcurrent protection can also be adjusted on the panel (the adjustment range of distribution load is 3 ~ 6IE, and the adjustment range of motor load is 6 ~ 12IE). The short-circuit protection setting current of molded case circuit breaker cannot be adjusted by users after leaving the factory. Working conditions: the upper limit of ambient air temperature shall not exceed +40℃, the lower limit shall not be lower than -5℃, and the daily average shall not exceed +35℃. When the ambient air temperature exceeds the above range, it is necessary to make special settings in the factory. Atmospheric conditions: when the ambient air temperature is +40℃, the relative humidity of the atmosphere should not exceed 50%; The lower the temperature, the higher the relative humidity. When the monthly average minimum temperature is +25℃, the monthly average maximum relative humidity is 90%. Due to the temperature change, measures must be taken to prevent the product from condensation. Pollution level: three-level installation categories: three-level (690V system) and four-level (380V system). The control power supply voltage should be (85% ~ 1 10%) US. Motor control center (MMC), especially intelligent electronic control system or distribution control and protection system, requires that the rated operation breaking capacity of integrated circuits should reach 80KA for single motor control and protection system; Electrical control and protection systems for lighting, power conversion, pumps, fans, air conditioners, fire fighting, lighting, etc. In the modern buildings of commercial and civil facilities in distribution centers; Remote lighting system. Hospital information processing center (bank, municipal administration, stock exchange center, etc.). ), telecommunications room, commercial buildings (large shopping centers, supermarkets, etc.). ), infrastructure, port or railway system (airport, railway passenger transport center, etc. ), highway lighting or ventilation system, military station control and protection system (such as border post, radar station), matters needing attention of fire pumps and fans in various occasions, etc. 1. Equipment installation requirements In order to ensure the accuracy of protection characteristics, KB0 shall be installed as required. Before use, carefully check whether the coil voltage and auxiliary gear control power supply voltage are correct and consistent, so as not to damage KB0. The operating knob should work normally. In the "Auto" position, the electromagnet should be attracted. When the operating knob is turned to the "OFF" position, the electromagnet will be released, and its installation surface can be rotated 90 degrees left and right relative to its axis for installation. If KB0 is in a tripping state (rotating in the "tripping" position), turn the knob to the "reset" position and then to the "automatic" position to realize remote control. During transportation and storage, it should not be hit by wind and rain. Before use, it should be placed in a warehouse where the daily average relative humidity does not exceed 90% (at 25℃) and the ambient temperature is not higher than +40℃ and not lower than -25℃. 2. Before parameter setting and operation, the user should set parameters for KB0, run with empty parameters (when the motor starts running, pressing the setting key is invalid), press the setting key to select the setting type, and then press shift in turn. Press the data key to modify the data. After setting the parameters, press the set key again to enter the next setting state. When the value is over, you should give up unnecessary options. After all parameters are set, press the reset key to exit the setting state. Examples are as follows: product KB0-12/M 12/06M motor 4KW setting: Is 1 rotates to the corresponding setting current value according to the actual motor current. Is2 adjusts the corresponding current value according to the heavy load or light load of the motor. League Korea Professional Baseball League (Korean:; English: Korean Baseball Organization (KBO) is the management unit of professional baseball in Korea, which was established in 198 1. 1982 In March, the first professional baseball game in history was held in Seoul. Since then, Korean professional baseball was officially born, and South Korea became the second country in Asia to establish a professional baseball league. There are 9 teams in total: Nixon Heroes, SK Flying Dragons, Kia Tigers, Samsung Lions, South Korea Firehawks, LG Gemini, Doosan Bears, Giant and NC Tyrannosaurus Rex. Korea Professional Baseball League (KBO)