Overview

XGN-12 series solid fully insulated closed ring network switchgear is a fully insulated, fully sealed, maintenance-free solid insulated vacuum switchgear. All high-voltage live parts are cast and molded with epoxy resin material with excellent insulation performance, and the vacuum interrupter, main current circuit, insulation support and so on are organically combined as a whole, and the functional units are connected by fully insulated solid bus. Therefore, the entire switchgear is not affected by the external environment, and the reliability of equipment operation and the safety of operators can be ensured.

The ring network cabinet has the characteristics of simple structure, flexible operation, reliable interlocking and convenient installation. It is suitable for 50Hz, 12kV power system. It is widely used in industrial and civil cable ring network and distribution network terminal projects. It is especially suitable for power distribution in urban residential areas, small substations, switching stations, cable branch boxes, box-type substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, stadium, railway, tunnel and other places to use.

Because the product has the advantages of full insulation, full sealing, and full shielding, it is especially suitable for use in areas with harsh environments such as high altitude, high temperature, hot and humid, severe cold, and serious pollution.

Product Classification

According to the switch type, it is divided into load switch with grounding assembly (referred to as C module), load switch without grounding assembly (referred to as CB module), circuit breaker with grounding assembly (referred to as V module), circuit breaker without grounding assembly (referred to as VB module), circuit breaker contact switch (referred to as VZ module), load switch + fuse combination electrical switch assembly (referred to as F module), isolating switch assembly (referred to as G module)

Model Meaning

Conditions of use

& loz; Ambient temperature:-45C ~ + 45C

& loz; Humidity: maximum average relative humidity, daily average w 95%, monthly average w 90%

& loz; Altitude: W4000 m

& loz; seismic capacity: 8 degrees

& loz; Protection grade: charged body seal old 67, fuse barrel IP67, switch cabinet shell IP3X.

functions and characteristics

environmental protection

products are all non-toxic and harmless substances, and will not discharge any toxic and harmful substances in use. The materials can be recycled after the life cycle, which determines the environmental protection of the use.

Fully insulated, fully sealed and fully shielded epoxy resin switch simplified, fuse simplified (epoxy resin has excellent electrical properties, mechanical properties, and thermal characteristics. It has been used in electrical equipment for a long time and has achieved good results. Switch simplified, fuse simplified using epoxy resin APG process molding. Insulation is a key component of solid insulated switch, it is both insulation and load-bearing parts. It is required to meet the technical requirements of heat resistance, weather resistance, cracking resistance, high mechanical strength and good insulation strength. The simplified body is large in size, with many inserts and different shapes. It is difficult to manufacture. The company has many years of experience in the design and manufacture of insulation parts, from the cylinder design, material formulation, process flow multi-party efforts to ensure the high-quality mass production of the parts. According to user requirements, can provide external shielding grounding can touch the cylinder)

maintenance-free:

solid insulation indoor AC high-voltage vacuum switch cabinet in addition to the operating mechanism of the high-voltage switch parts in a fully sealed state, so that it can be free from cleaning and maintenance, reducing the cost of operation and maintenance.

Security:

Due to the use of shielding measures in the touchable parts, the occurrence of personal electric shock accidents is eliminated and the safety of use is improved. Perfect interlocking system, three-phase isolation fracture is clearly visible, to avoid the misoperation accident. The application of SF6 gas is completely canceled, and the explosion accident caused by the decrease of insulation performance and arc extinguishing capacity of SF6 ring network cabinet due to insufficient gas pressure is avoided. Strengthen the inter-phase isolation structure to avoid inter-phase or multi-circuit short circuit and expand or cause explosion accidents. Using a vacuum interrupter with explosion-proof performance, the switch sleeve has further protective performance for the switch. The auxiliary earthing switch of the load switch-fuse combination is sealed in the fuse cylinder with vacuum switch tube.

Easy operation:

The grounding switch of the isolating switch has only one operating handle, so there is no need to identify and worry about errors. When the circuit breaker is running, the operating handle of the grounding switch of the isolating switch cannot be operated. The operating procedure is clear at a glance. As long as personnel with a little electrical knowledge can operate, complicated technical training can be carried out disorderly. This makes the operation extremely simple and prevents the occurrence of operation errors.

intelligent:

switch cabinet has intelligent interface and sensor installation position, and the intelligent equipment can meet the requirements of smart grid.

various operating mechanisms:

switch can be equipped with spring, permanent magnet two operating mechanism, convenient user selection.

Compliance with Standards

& loz;Q/GDW 730-2012 Technical Conditions for 12kV Solid Insulated Ring Network Unit

& loz;GB1984 AC High Voltage Circuit Breaker

& loz;GB3804 3.6 kv-40kv "AC high voltage load switch"

& loz;GB1958 AC High Voltage Disconnector and Earthing Switch

& loz;GB4208 Enclosure Protection Level Intellectual Property Code

& loz;GB 16926 High Voltage AC Load Switch-Fuse Combination Appliance

& loz;GB/T15166.2 High Voltage AC Fuse Set Part 2: Current Limiting Fuse Circuit

& loz;GB/T7354 Partial Discharge Measurement

& loz;GB/T11022 "Common technical conditions for standards of high voltage switching equipment and control equipment"

& loz;GB3906 "3.6-40.5kv ac metal enclosed switchgear and controlgear"

Main technical parameters

Application areas

♦ Low temperature and cold area: no SF6 gas application, no need to consider the low temperature operation of SF6 gas, and it can operate normally under-45C.

Plateau area: no need to consider the influence of plateau atmospheric pressure on insulation performance.

Strong sandstorm area: the safety protection grade of solid insulation ring network cabinet is IP67, and the control circuit room adopts special treatment to ensure long-term operation in strong sandstorm area.

♦ Coastal wet pool area: epoxy resin sealing, anti-moisture, anti-salt spray corrosion, to ensure long-term use in coastal areas.

The impact of SF6 gas on atmospheric warming in areas with high environmental protection requirements has attracted great attention. The solid ring network cabinet cancels SF6 gas, which does not cause any pollution and harm to the environment and people.

Smart grid: because the main switch and isolating switch can be electrically operated, the intelligent controller developed by our company can be selected for remote control, telemetry and remote communication of switching equipment and substation site, which can not only carry out decentralized control, but also facilitate centralized control.

Dimensions

Dimensions

transportation and storage

The packaged ring net unit can be transported by electric forklift or crane. The ring net unit is equipped with lifting rings for lifting during transportation. The hoisting rope shall not be shorter than 2 m.

♦The ring network unit should be placed in a dry, ventilated and dust-free place before installation on site. If covered with plastic bags, the bottom should be open ventilation

use and maintenance

a. pre-use inspection: before the ring network unit is used, the following inspections must be carried out for the safety of personnel and equipment.

♦ Check whether the main circuit and grounding circuit are properly connected.

Check whether the mechanical interlock is correct and reliable.

Check whether the operation of load switch and earthing switch in ring network unit is flexible and correct.

Check whether the connection of high-voltage cable is correct and reliable.

B. Running

The ring network unit shall be put into operation according to the specified operation sequence.

c. Maintenance: This equipment is based on the following advantages and does not require routine maintenance

All live parts are installed in epoxy plastic insulation cylinder.

All parts of the operating mechanism placed outside the epoxy plastic grease insulation cylinder have been electroplated.

♦ The main shaft is supported by a copper sleeve, which can work continuously and effectively without lubricant.

Note: If the ring network unit is faulty, do not try to open the ring network unit for repair with drilling machine, cutting machine or other tools. Only the personnel of the company can be responsible for these operations.

random files and attachments

products are delivered to the factory, the following information and accessories shall be provided:

Product Installation and Operation Manual

Product Outlet Test Report

Product Qualification Book

♦ Packing List

♦ Operating handle

. When other accessories are delivered to the factory, the following information and accessories shall be provided at random:

Product Installation and Operation Manual

Product Outlet Test Report

Product Qualification Book

♦ Packing List

♦ Operating handle

. Other Annexes