XL-21 power switchgear

The new XL-210 (XCP) power box is widely used in power plants and industrial and mining enterprises, and is used in three-phase AC below 500v with three-phase three-wire. Three-phase four-wire. Three-phase five-wire and other power distribution systems for power or lighting power distribution, which is installed against the wall indoors, operated in front of the screen, and overhauled in front of the screen; The box is a fully enclosed structure, which is assembled from C profile into 8MF profile. The box adopts a new rotary load disconnector, which can be operated with load, and the Zhengxi gate is equipped with voltage and current indicator instruments, as well as signal lights, buttons, transfer switches and other main components. This distribution box adopts new components designed by itself, with compact structure, generous shape and convenient maintenance. A variety of wiring options are available and are ideal replacements for the older XL-21 power box.

Category:

Low voltage switchgear series

Keywords: transformer, box-type substation, medium and low voltage switchgear

Usage environment

◆ Ambient temperature: -5°C ~ +40°C, and the average temperature within 24h does not exceed +35°C

◆ Altitude: not more than 200m.

◆ Relative temperature: not more than 50% when the ambient air humidity is +40°C; There can be a high relative humidity at lower temperatures (e.g. 90% at +20°C), taking into account temperature variations that allow moderate condensation to be produced.

◆ The pouring degree of equipment installation and heavy should not exceed 5°.

◆ The equipment should be installed in a place without severe vibration, no hit and no corrosion.

Note: If you exceed the above conditions, you can negotiate with our company.

Product technical features

◆ The electrical performance fully complies with the relevant provisions of GB 7251.1 and IEC 60439-1.

◆ The feed switch adopts a new type of bishell circuit breaker and double trip device with small size, high breakage, short arc (or no arc), which has overload. The short-circuit protection device well can be equipped with leakage protection function according to user requirements.

◆ The motor circuit has overload and short circuit. Undervoltage, phase loss protection function.

◆ The auxiliary circuit has a local presence. Remote control function and in situ. Automatic switching of power cells from afar.

Precautions before installation, acceptance and operation

After the arrival of the product, first check whether the packaging is intact, find the problem should be notified to the relevant departments in time to find the cause, for the product that is not installed immediately should be placed in the adapted place according to the provisions of normal use conditions.

◆ The product installation base channel steel and bolts are provided by the user, and the connection hole between the foundation channel steel and the cabinet body (see Figure 1)

◆ After the product is installed, it is inspected and tested before being put into operation

◆ Check whether the cabinet body has fallen off from the multi-layer paint film, and whether the cabinet is dry and clean;

◆ Whether the on-off of the main electrical appliances and auxiliary contacts is reliable and accurate;

◆ Whether the selection of the main components and the wiring principle are consistent with the schematic drawing;

◆ The insulation value of 500V megohmmeter is not less than 1MΩ. When measuring, pay attention to disconnect the wiring of electronic components that cannot withstand voltage.

◆ Precautions for use

After multiple combinations, the low-voltage air circuit breaker will cause local burns of the main contact and produce carbon substances to increase the contact resistance, and the universal low-voltage air circuit breaker should be regularly maintained and overhauled according to its instruction manual. Ordering instructions

◆ All models of the product "including main circuit scheme number and auxiliary circuit scheme number".

◆ Main circuit system diagram, cabinet layout diagram.

◆ Electrical schematic diagram of auxiliary circuit.

◆ List of components in the cabinet "Main Bus Specification".

◆ Cabinet color, "if not required, it will be supplied according to camel gray" box size.

◆ Other special requirements that do not meet the normal conditions of use of the product.