3.6KV 2000A High Current Switchgear Electrical Equipment

Standards compliant:

GB3906-2006 "3.6~40.5kV AC metal-enclosed switchgear and control equipment"

GB11022-89 "General Technical Conditions for High Voltage Switchgear"

IEC298(1990) "AC metal-enclosed switchgear and control equipment with rated voltages above 1kV and 50kV and below"

DL404-97 "Technical Conditions for Ordering Indoor AC High Voltage Switchgear"

Normal usage environment

◆Surrounding air temperature: maximum temperature+40 ℃, minimum temperature -15 ℃:

◆Relative humidity: Daily average relative humidity: ≤ 95%, daily average water vapor pressure does not exceed 2.2KPa; Monthly average relative humidity ≤ 90%; The monthly average water vapor pressure does not exceed 1.8KPa; Altitude: ≤ 1000m:

◆Earthquake intensity: not exceeding level 8;

◆The surrounding air should not be significantly polluted by corrosive or combustible gases, water vapor, etc;

◆No places with severe vibration;

◆When using beyond the normal conditions specified in GB3906, the user and our company shall negotiate

Functions and features of 3.6KV 2000A High Current Switchgear Electrical Equipment

The 3.6KV 2000A High Current Switchgear Electrical Equipment is based on the armored metal-enclosed switchgear specified in GB3906-91. It consists of two main sections: the cabinet and the central pull-out part, also known as the handcart. The cabinet is divided into four compartments, providing IP4X protection when closed. Opening the doors of the compartments and the circuit breaker room reveals IP2X protection. This switchgear features overhead and cable incoming and outgoing lines, along with other functional solutions, to create a complete power distribution system device. Its front-access design allows for easy installation, debugging, and maintenance, enabling back-to-back, double arrangement, or wall mounting options. These features enhance safety, flexibility, and space efficiency of the switchgear.

Main technical parameters of 3.6KV 2000A High Current Switchgear Electrical Equipment

Main technical parameters of vacuum switchgear

If the 3-10KV motor is controlled by a circuit breaker and the initial current is below 600A, a metal zinc oxide lightning arrester must be installed. Detailed specifications are discussed between the customer and our company. When using the circuit breaker to disconnect the capacitor bank, the rated current of the capacitor should not surpass 80% of the circuit breaker's rated current.

Technical parameters of operating mechanism

The 3.6KV 2000A High Current Switchgear Electrical Equipment is designed according to the armored metal enclosed switchgear in GB3906-91. The entire is composed of 2 mainparts: a cupboard and a central with drawable spare component (i.e. a handcart) (see Number 1). The cupboard is separated into 4 separate areas, with an unit defense degree of IP4X. When the doors of each compartment and circuit breaker area are opened, the protection degree is IP2X. Furnished with above inbound and outgoing lines, cable inbound and outgoing lines, and various other functional systems, arranged and combined to develop a complete collection of power circulation system gadgets. This switchgear can be set up, debugged, and preserved from the front, so it can be back-to-back, organized in a double plan, and set up against the wall, enhancing the safety, flexibility, and reducing the footprint of the switchgear.

◆ Shell and others

The main frame of the switchgear is constructed from aluminum zinc thin steel plate, processed by CNC machine device, and adopts multiple folding procedure, which not only has the advantages of high accuracy, solid deterioration resistance and oxidation resistance, but also makes the closet lighter in weight, higher in mechanical stamina, and more visually pleasing in look compared to various other similar devices cupboards due to the use of several folding procedure. The closet embraces a set up structure, attached by rivet nuts and high-strength bolts, which shortens the processing cycle, boosts the universality of components, occupies less space, and is convenient for organizing manufacturing.

◆ Handcarf

The handcart framework is put together from slim steel plates refined by CNC device devices. The handcart and cupboard are protected and coordinated, and the interlocking mechanism is safe, reputable, and versatile. According to their usage, handcart can be divided into circuit breaker handcart, voltage transformer handcart, metering handcart, seclusion handcart, and other kinds of handcart. According to module and block type variants, handcart of the exact same spec can be easily exchanged 100%. The handcart has a disconnection position, a testing position, and a functioning placement inside the closet. Each placement is equipped with a positioning device to guarantee trusted interlocking. The procedure must be executed according to the interlacing security measures operation treatment. All handcart uses nuts and screws to relocate and exit, and its operation is light and adaptable, ideal for at work personnel to operate. When the handcart. demands to be relocated far from the cupboard, a committed transfer automobile can be easily pulled out for various assessments and upkeep, And it embraces a mid placed layout, with a tiny quantity for assessment, maintenance, and ease.

◆ Area

The major electrical parts of the switchgear have independent areas, specifically: breaker handcart room, busbar room, wire space, relay tool room. The defense degree in between each area gets to lP2x; Except for the relay, all various other 3 styles have their very own stress alleviation networks. Due to using a main layout, the cable area space is greatly raised, permitting the devices to link multiple cables.

◆ Circuit breaker Compartment

Tracks are set up on both sides of the area for handcart 5 to move and slide from the disconnected position and examination position to the functioning position inside the cabinet. The dividing 3 (shutoff) of the fixed get in touch with box 16 is installed behind the rear wall of the handcart area. When the handcart relocates from the separated placement test setting to the working placement, the flaps on the top and reduced static get in touch with boxes are linked with the handcart and automatically open. When relocating the contrary direction, the flaps instantly close till the handcart returns to a particular placement and entirely covers the fixed call box, forming efficient isolation. As a result of the separate operation of the top and reduced shutoffs, during upkeep, the shutoff on the online side can be secured to make certain that upkeep employees do not touch the real-time body. When the circuit breaker room door is closed, the handcart can likewise be run.

Via the monitoring window of the middle door, the setting of the handcart being gotten rid of and closed in the area can be observed, and the energy storage standing can be displayed.

◆ Busbar Compartment

The primary busbar 18 is a solitary system spliced and attached per various other, dealt with by the primary busbar 20 and the fixed contact box. The main busbar and connecting busbar are copper bars with rectangular cross-sections, utilized for high currents. When composite, double busbars are utilized to construct them. The branch busbar is linked to the fixed get in touch with box 16 and the primary busbar with bolts and does not require any other support. For special requirements, the busbar can be covered with heat diminish tubes, insulation sleeves with connecting screws, and finish caps. Surrounding cupboard busbars are repaired with sleeve 19, to ensure that the air barrier preserved in between the attaching busbars can protect against melting in case of internal mistake arcs. Sleeve 19 can effectively limit accidents to this cupboard and not spread to other cabinets.

Overall dimensions

Installation of switchgear

Schematic diagram of switchgear structure

◆ The following layout reveals the architectural parts of the switchgear. All metal modular setting up framework, the cabinet body is made from imported aluminum zinc coated plate with solid anti-corrosion capacity, without surface treatment. It is processed by CNC high-precision tools and takes on sophisticated multiple folding procedure. The connection is gotten in touch with rivet nuts and high-strength bolts, with high accuracy, light weight, and good toughness.

◆ The switchgear can be geared up with our firm's VS1 series, VD4 series, ZN65 series and various other vacuum breaker, with broad applicability and solid interchangeability. The handcart is outfitted with a working position, a screening position, and placing and display screen tools at each placement, making sure safety and dependability.

◆ The cable space can accommodate up to 9 single core cords, and the devices is outfitted with trusted mechanical and electric interlocking devices, totally meeting the "5 avoidance" demands. Each room is equipped with pressure relief networks to ensure individual security during procedure.