Switchgear refers to a total collection of power distribution tools assembled from key tools and also additional devices according to a certain circuit strategy. It is made use of to regulate and also protect circuits and tools. The framework of the switchgear is roughly comparable, mainly divided into busbar room, breaker area, second control space (tool room), feeder area, each space is typically separated by steel plates.
low-voltage withdrawable switchgear
1. Recognizing of distribution box (cabinet).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage repaired switchgear; XZW is a comprehensive distribution box; ZBW is a box-type substation; XL, GXL are low-voltage power distribution closets and also construction site boxes; JXF is an electrical control box; PZ20 as well as PZ30 series are incurable lights distribution boxes; PZ40 and XDD( R) are electrical meter dimension boxes.
2. The impact of low-voltage power circulation cabinets.
( 1) It is hassle-free to set up the power supply sensibly.
( 2) When the line fails, it is beneficial to regulate the scope of the fault and it is practical to swiftly find the mistake point and eliminate it in time.
( 3) It is hassle-free to organize circuit inspection and repair in pieces, without large-scale power outage.
( 4) Various protection devices such as fuses to stop brief circuits as well as air buttons to avoid overload can be comfortably positioned in the power circulation cupboard.
3. The composition of the low-voltage power circulation cabinet.
( 1) The power distribution cabinet mainly includes: wiring terminals, numerous switches, defense devices (air switches, integrates, etc.), determining equipment (voltmeter, ammeter, cycle meter, etc.), determining devices (active and also reactive power) table).
( 2) There are lots of types of low-voltage power distribution cupboards, as well pretreatment equipment as the parts are extremely different. Taking the power cabinet as an example, from leading to base: knife button, current transformer, air switch, and branch circuit breakers.
TControl power circulation cupboard.
4. The material of each digit of the power distribution cupboard model.
GGD low-voltage power circulation cabinet: G-- low-voltage power distribution cabinet; G-- set installment and circuitry; D-- power cabinet;.
GCK low-voltage power circulation closet: G-- closet framework; C-- withdrawable type; K-- control;.
GCS low-voltage power distribution cupboard: G-- confined switch cupboard; C-- withdrawable type; S-- Senyuan electric system;.
MNS low-voltage power circulation closet is a product manufactured in accordance with the transfer technology of Swiss ABB firm.
5. The difference between GGD, GCS, GCK, MNS power distribution cupboard.
GGD is different from the other three in that it is a fixed type, while GCK, GCS, and also MNS are all drawer kind switch closets. Each electrical outlet unit of them is independent and also each circuit will certainly not affect each various other.
GCS is a brand-new generation of drawer kind switch cupboard made by Senyuan Company in the mid-90s with referral to ABB's MNS cabinet kind. The main structure resembles MNS, with the primary bus bar behind. The difference from MNS is that the drawer component utilizes a 20mm module (MNS is 25mm); the drawer takes on a press mechanism, that makes the procedure more convenient as well as flexible.
The MNS cabinet can be operated on both sides, and a single cabinet can hold 36 loops (with 1/4 drawers) at the majority of, while the GCS can be approximately 22. The product used in the MNS closet is aluminum-zinc layered, fully constructed framework, no post-processing (galvanizing) is called for.
The horizontal busbars of MNS as well as GCS are separated from the front left drawer system and the front right cord outlet area with dividers. Their upright busbars are put together in flame-retardant plastic practical boards to be extra trusted. The distinction is that GCS can just have 1/2 cabinet at least, MNS has 1/4 cabinet, MNS cabinet has one more interlocking mechanism, and GCS just has the button itself.