Switchgear refers to a full set of power distribution devices constructed from key tools and second equipment according to a certain circuit strategy. It is used to manage and safeguard circuits and also equipment. The framework of the switchgear is roughly comparable, mainly divided into busbar space, breaker space, additional control space (tool space), feeder area, each room is usually separated by steel plates.
low-voltage withdrawable switchgear
1. Understanding of circulation box (cabinet).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage taken care of switchgear; XZW is a thorough distribution box; ZBW is a box-type substation; XL, GXL are low-voltage power distribution cabinets and also building website boxes; JXF is an electric control box; PZ20 and PZ30 collection are incurable lighting distribution boxes; PZ40 and XDD( R) are electric meter dimension boxes.
2. The result of low-voltage power distribution cabinets.
( 1) It is hassle-free to configure the power supply fairly.
( 2) When the line fails, it is helpful to control the extent of the fault and also it is practical to rapidly locate the mistake factor as well as remove it in time.
( 3) It is hassle-free to organize circuit maintenance in pieces, without large power interruption.
( 4) Various defense devices such as integrates to stop brief circuits as well as air buttons to stop overload can be comfortably put in the power distribution closet.
3. The composition of the low-voltage power distribution cupboard.
( 1) The power distribution cupboard mainly includes: electrical wiring terminals, numerous switches, defense equipment (air switches, merges, and so on), determining equipment (voltmeter, ammeter, cycle meter, and so on), gauging tools (active and reactive power) table).
( 2) There are many kinds of low-voltage power distribution cabinets, as well as the components are really different. Taking the power cabinet as an instance, inside out: knife switch, current transformer, air button, and also branch breaker. If you directly control the electric tons, there are contactors, thermal relays, and branch present transformers under the branch circuit breakers. Of course, there are ammeters, voltmeters, voltage conversion switches over, and sign lights.
TControl power distribution cupboard.
4. The material of each figure of the power circulation cupboard version.
GGD low-voltage power distribution cupboard: G-- low-voltage power circulation closet; G-- set installation as well as circuitry; D-- power cabinet;.
GCK low-voltage power distribution cupboard: G-- cupboard structure; C-- withdrawable type; K-- nerve center;.
GCS low-voltage power circulation cupboard: G-- enclosed switch cupboard; C-- withdrawable kind; S-- Senyuan electrical system;.
MNS low-voltage power circulation cabinet is an item made in accordance with the transfer modern technology of Swiss ABB firm.
5. The distinction in between GGD, GCS, GCK, MNS power circulation closet.
GGD is various from the other three because it is a set type, while GCK, GCS, and also MNS are all cabinet type button closets. Each electrical outlet system of them is independent and also each circuit will certainly not influence each other.
GCS is a brand-new generation of drawer type switch cabinet made by Senyuan Company in the mid-90s with reference to ABB's MNS cabinet kind. The major structure is similar to MNS, with the main bus bar behind. The distinction from MNS is that the drawer module utilizes a 20mm module (MNS is 25mm); the drawer takes on a push device, which makes the procedure easier and also adaptable.
The MNS cabinet can be operated types of pickling line both sides, and a single cupboard can hold 36 loopholes (with 1/4 cabinets) at the majority of, while the GCS can be up to 22. The product utilized in the MNS closet is aluminum-zinc plated, fully set up structure, no post-processing (galvanizing) is called for.
The straight busbars of MNS as well as GCS are separated from the front left cabinet device as well as the front right wire outlet compartment with partitions. Their vertical busbars are assembled in flame-retardant plastic practical boards to be extra reputable. The difference is that GCS can only have 1/2 drawer a minimum of, MNS has 1/4 drawer, MNS cabinet has an additional interlocking system, and GCS just has the button itself.