VCS isolation switch box-VCS Isolation Switch Box-Zhejiang Dexuan Technology Co., Ltd.-A high and low voltage mining complete set company integrating development, production, sales and service.

VCS visual breakpoint disconnector switch box

VCS products of visual breakpoint isolation switchbox, the product meets the requirements of GB14048.3% 3C low-voltage switchgear and control devicesPart III: switch, isolating switch, disconnector and fuse combination electrical standard > and GB7251.3< low-voltage switchgear and control equipment Part 3: distribution board operated by general personnel (DB0> requirements, suitable for power distribution networks with a frequency of 50~60Hz and a voltage below 690V, for emergency disconnection of electrical equipment on industrial sites, in-place safety disconnection, and motor start-stop control, forward and reverse rotation control, variable speed drive control and other operation control provide a simple and easy solution. It is widely used in cement, metallurgy, electric power, petrochemical, coal mining, machinery, rail transit, ports and other industries.

1. Executive standard:

1EC60947-3，G814048.3 G87251.3

IEC60364。 EN60204-1

EN60439，EN60695-2-11

2. Technical parameters:

Rated insulation voltage Ui: 690V

Rated impulse voltage Uimp(KV): 25KV

Rated working voltage Ue(V): AC400V

Rated working current Ie(A): 63A, 100A,

3. Structural features:

3.1 Switch contact visual function: VCS products are selected from SOCOMEC SIRCOMV series and ABB's 0T series original imported yin exit, with two complete disconnect indication functions. It makes the switch contact separation and closing clear at a glance, so as to protect the safety of machinery and equipment and people.

3.2 safety interlock device; The VCS product is equipped with a safety interlock device, which closely cooperates with the mechanical interlocking mechanism of the VCS door through the switch operation handle, so that the VCS cannot open the door when the switch is closed (the indicator is red "I"), and the door can only be opened when the opening "indicator is green "0") state; When the door is open, the switch can not be closed, and only when the door is closed, the switch can be closed. Through this safety interlock device, the personal safety of industrial site workers and the safety of equipment operation are protected.

3.3 Joystick padlock device: The joystick of VCS products is equipped with three padlock devices to prevent potential safety hazards caused by misoperation by non-staff. When the field equipment equipped with VCS products is in the overhaul and maintenance period, the maintenance worker, dispatcher and safety officer can hang the corresponding padlock on the operation handle of the VCS respectively, so that the VCS can only be operated when all three people release the padlock, so as to ensure the personal safety of the field equipment and maintenance personnel to the greatest extent.

3.4 pre-opening function: to prevent the switch from live operation, and play a double protection role, when the switch operating handle rotates to 30-45", the superior protection switch is effectively disconnected.

3.5 box sealing and protection device: VCS products make the overall protection level of the box reach IP65 by setting a cap cotton device on the top of the box, turning out the door edge at a 45-degree angle, one-time dispensing and sealing on the inside of the box, and fastening screw inspection and sealing of the incoming cable.

4. Installation and use:

4.1 Unpacking: check the integrity of the packaging, and check whether the equipment model, specification, circuit layout, cabinet device, wiring exhaustion, etc. meet the requirements according to the drawings.

4.2 Installation: wall-mounted installation. The verticality and horizontal deviation of VCS installation should be ensured during installation, and the horizontal deviation should not exceed 2mm/m. After repeated adjustments, the VCS is fixed. Installation size: see drawing.

4.3 After the box is installed and fixed, the inlet and outlet cables are connected to the inlet and outlet ends of the switch after passing through the fastening bolts of the inlet and outlet cables according to the drawings, and the inlet and outlet line guards are covered. When wiring, the ground wire should be reliably grounded.

4.4 Operation:

a) closing: lock the door with a key after the door is closed; Then turn the handle up clockwise to close.

b) Opening:

Turn the handle down counterclockwise to open the switch; After opening, use the key to open the door

c) Overhaul:

After opening, confirm that the switch contact has been disconnected through the visual window; Pull out the locking device in the middle of the handle and lock it with a padlock;

5. Maintenance:

5.1 Daily maintenance is divided into regular maintenance and daily maintenance.

5.2 Regular maintenance is to regularly inspect and clean the device, check the action flexibility of the operating mechanism and the opening and closing of the contact, check the performance and fixation of all electrical components and accessories, check the anti-galvanic corrosion of the terminal, regularly check whether the grounding device is good, check whether the center line of the moving contact and the fixed contact should be consistent, the contact should be close and ensure that there is enough pressure.

5.3 Daily maintenance should pay attention to cleaning the inside and outside of the VCS device, the action flexibility of the operating mechanism and the opening and closing of the contacts should be correct, and check whether the various electrical joints are overheated.