DTV series indoor vacuum circuit breakers are suitable for indoor switchgear of power system with voltage of 3.6kV~ 12kV and rated frequency of 50(60)Hz. It can be used to switch various loads with different properties and places for frequent operation, and can be used for the protection and control of electrical facilities in industrial and mining enterprises, power plants and substations.
The main circuit of DTV series indoor vacuum circuit breaker adopts sealed vacuum electrode, which is composed of vacuum interrupter and upper and lower outlet sockets directly sealed in epoxy resin by automatic pressure gel process (APG), which reduces the influence of conductive overlapping surface and external environment on the interrupter shell and improves the reliability of power supply. (including DTV2- 12, DTV2-24 and DTV2-40.5)
DTV2 series indoor vacuum circuit breakers are suitable for indoor switchgear of power system with voltage of 3.6kV~ 12kV and rated frequency of 50(60)Hz. It can be used to switch different loads and frequently operated places, and can be used for the protection and control of electrical facilities in industrial and mining enterprises, power plants and substations.
The main circuit of DTV2 series indoor vacuum circuit breaker adopts casing string, DTV2 vacuum circuit breaker adopts closed insulation form, and the main insulation cylinder is equipped with inner and outer skirts, and its creepage ratio meets the requirements of DL standard. The product has obvious advantages such as small volume, reliable insulation, no pollution, no explosion, stable performance, high technical parameters and long maintenance period. Dtz-12/t1250-310.5 indoor high-voltage vacuum circuit breaker is an indoor equipment with three-phase AC of 50Hz and rated voltage of 12kV. The product is a trinity combine electrical appliance which integrates vacuum circuit break, isolating switch and grounding switch, wherein that isolating switch and the arc extinguish chamber are sealed as a whole, thus greatly improving the insulation strength of the main circuit of the switch and realizing the miniaturization of the product. This product is suitable for switching different loads and places with frequent operations, and can be used for the protection and control of electrical facilities in industrial and mining enterprises, power plants and substations.
DTZ- 12 indoor high-voltage vacuum circuit breaker is mainly composed of two parts: primary conductive circuit body and operating mechanism. The primary conductive loop is installed in the sealing pole made of epoxy resin insulating material, and the operating mechanism is placed in a metal closed cabinet; The conductive loop and the operating mechanism are arranged back and forth and connected through the shell of the shell, so that the main conductive loop is arranged longitudinally.
The mechanism is modular in design, independent in structure and self-integrated, and can be taken out of the mechanism box for easy maintenance. The surface of the mechanism adopts special anti-corrosion treatment, which has high anti-corrosion performance. The transmission part adopts oil-free lubrication, which overcomes the fault caused by the freezing of lubricating oil in alpine region. Gear transmission, high transmission precision and no noise. DTF- 12/T630-25 indoor high-voltage vacuum load switch and DTF-12/T125-31.5 indoor high-voltage vacuum load switch-fuse combination appliances are indoor devices, with three-phase AC of 50Hz and rated voltage of/KLOC-. The product is a trinity combine electric appliance integrating vacuum load switch, isolate switch and grounding switch, in which that isolating switch of the load switch and the arc extinguishing cham are sealed as a whole, thus greatly improving the insulation strength of the switch control circuit and realizing the miniaturization of the product. This product is suitable for switching different loads and places with frequent operations, and can be used for the protection and control of facilities in industrial and mining enterprises.
Vacuum load switch and combined electrical appliance are four-station load switches and combined electrical appliances integrating on, off, isolation and grounding. This product is suitable for AC high-voltage ring network power supply system with rated voltage of 12kV and rated frequency of 50Hz, which can make and break load current and overload current. A vacuum load switch and a current-limiting fuse are connected in series to form a combined electrical appliance. The vacuum load switch is responsible for turning on and off various load currents, and the current-limiting fuse is responsible for turning off larger overload current and short-circuit current. (including DTG- 12 and DTG-24 series)
DTG- 12/24(F)/T630-20 gas insulated switchgear (hereinafter referred to as load switch equipment), DTG-12/24 (f.r)/t125-31.5 gas insulated switchgear (.
Basic switching elements such as load switch, load switch+current limiting fuse and circuit breaker. Respectively installed in the sealed box of the ring network cabinet, and the load switch is used for controlling the loop, connecting and disconnecting the load current and the overload current; Transformers and their distribution circuits are controlled, disconnected, closed and isolated by load switches and current-limiting fuses. Short-circuit current and overload current of medium-voltage transformers, transformers and low-voltage distribution circuits are protected, and equipment or lines are protected by circuit breakers. The basic unit can be made into * * * cabinets, and can also be expanded into various power distribution system schemes. * * * Boxes Up to six * * * boxes, and the expansion types can be spliced infinitely.
You can connect DTG- 12/24(F)/T630-20, DTG-12/24 (f.r)/t125-31.5, DTG- Circuit breaker cabinets, load switch cabinets and combined electrical cabinets can also be used separately. It is mainly used in secondary distribution systems of 24kV, 12kV and below, and is suitable for ring network power supply or double radiation power supply of 24kV, 12kV power supply lines. When a line fails, the fault section can be isolated after line reorganization, which can restore and improve the power supply of the line in time and greatly improve the reliability and utilization of power supply. It is suitable for industrial and commercial areas with wired power supply network or areas with large power supply load and high density in rural towns. It is safe to use, unaffected by climate, convenient to install, less in maintenance and space saving, and is very suitable for installation in box-type substation. (including DAM 10- 12, DAM20-24 and DAM35-40.5 series)
DAM series armored removable AC metal enclosed switchgear The complete switchgear is a 3 ~ 40.5 kV three-phase AC 50Hz single bus and single bus subsection device. It is mainly used in urban power grid reconstruction system with seriously limited floor space, and the cost of civil engineering is greatly reduced. It can also be used for the transmission of small and medium-sized generators, the distribution of industrial and mining enterprises and the secondary power generation and transformation distribution station of power system, and the start of large high-voltage motors, which plays a role in control, protection and monitoring.
This switchgear meets the requirements of IEC60298, GB3906 and other standards, and has the interlocking functions of preventing the circuit breaker handcart from pushing and pulling with load, preventing the circuit breaker from opening and closing by mistake, preventing the grounding switch from being closed when it is in the closed position, preventing it from entering the live compartment by mistake, and preventing the grounding switch from being closed by mistake when it is live. Adopt the mature miniaturized components on the market at present, integrate the design of PT, CT and arrester, and locally adopt the balanced electric field structure. Equipped with miniaturized vacuum circuit breaker with excellent performance, it has strong environmental adaptability and greatly reduces daily maintenance. It is indeed a superior power distribution device. XGN□- 12 small vacuum switchgear is equipped with our company's DTZ- 12 miniaturized integrated vacuum circuit breaker or DTF- 12 miniaturized integrated vacuum load switch and load switch-fuse combination electrical switch. The upper part is a switch unit and the lower part is a local shell, which can be used to install CT, PT and lightning arrester. Fixed vacuum switchgear and load switchgear with circuit breaker cabinet can be used in any combination, with reliable wall-mounted installation and convenient maintenance and operation. It is an upgraded product of KYN28. Xgn □-12/t1250-310.5 ring network cabinet has a very small external dimension, and its width x depth x height is only 600x 1000x 1800, which greatly reduces the use space and saves the land occupation.
This ring network cabinet is suitable for secondary distribution systems such as 12kV segmented radiation mode, ring network distribution mode, switchyard redistribution mode, single loop direct distribution mode (terminal distribution mode) and hybrid distribution mode. It is widely used in indoor substations and power systems below 24kv, and can also be installed in pre-boxed substations as power control and protection devices. Cable junction box is widely used because it solves the problem of cable distribution when overhead lines are transformed into cables, and has the characteristics of full insulation, full sealing, maintenance-free and flexible installation and combination. The prefabricated cable accessories used in the cable distribution box are also fully insulated, sealed and shielded, which are suitable for all kinds of harsh environments, reliably ensuring the safety of equipment and personnel and greatly improving the reliability of power supply.
The cable distribution box can decide whether to configure the switch according to the actual needs, and the distribution box without the switch can realize up to 8 channels; Under important load conditions, a circuit breaker switch can be added, and the outlet side of SF6 load switch can accommodate up to six outlet circuits. In addition, lightning arrester and short circuit fault indicator can also be selected. (including DAW- 12 and DAW-24 series)
Outdoor intelligent switching station is a new generation of medium-voltage outdoor distribution network products developed by adopting world advanced technology and design concept and combining with China's actual environment. Product pre-installation integration, less floor space and short investment cycle; Complete function and flexible scheme; Short installation and debugging period and reliable power supply.
Outdoor intelligent switchyard organically integrates medium-voltage components and related secondary equipment, such as circuit breakers, load switches, disconnectors, grounding switches, transformers, protection measurement and control units, remote terminal control system (RTU), feeder automation terminal (FTU), metering and automatic meter reading, UPS power supply and indicating instruments. , and complete the factory inspection and debugging. All equipment is installed in an outdoor box that is rain-proof, corrosion-proof and moisture-proof. Realize the integration of primary system and secondary system of urban distribution network; Modularization of components. Shorten the construction period, realize the automation of distribution network, and greatly improve the reliability and automation of urban power grid operation.