Metal Clad Enclosed Low Voltage Power Cabinet/ Switchgear
Electrical Equipment Distribution Switchgear Cabinet
Product description
GGD AC low-voltage distribution cabinet is suitable for power
distribution system of AC 50 Hz, rated working voltage 380 V and
rated working current 3150 A in power plants, substations, and
industrial enterprises, etc. It is used as lighting, electric
energy conversion, distribution and controlling of distribution
equipment. GGD AC low-voltage distribution cabinet is designed
according to senior management of energy ministry, general electric
power
users and requirements of design department. The device is a
innovative type of low-voltage distribution cabinet that is in line
with the safety, economic, reasonable and reliable principles. The
product has high capability of breaking, high thermal stability,
flexible electrical scheme, convenient combination, seriation, high
practicability, innovative structure, high protection grade, etc.
It can be used as the upgraded replacement of the low voltage
complete switchgears. The device conforms to IE439 < Low-voltage
complete switchgear and control equipment >, GB7251 <
Low-voltage complete switchgear> standards.
Advantages:
1.Good quality with reasonable price, free sample, punctual
delivery, excellent service
2.The part through the process of CNC punching,bending,polishing
and packing.
3.Various type of Surface treatment: powder painting, zinc plating,
mirror polished, liquid printing or as customer's requirement.
4.Standard/Specification: according to customer's drawing or
samples;
5.Material: Cold rolled steel/Hot rolled steel/Stainless steel/
Aluminum/ Copper
Structural features
1). Adopting panel-division design, flexible equipment of charging
cabinet and distribution cabinet, easy to charge;
2). Adopting intelligent high-frequency switch charging module,
advanced technique and high reliability;
3). Providing dual-circuits alternating-current input interface,
capable of accomplishing dual-circuits alternating-current input
main and standby automatic switching and locking;
4). High charging efficiency, small volume, steady product quality,
excellent performance;
5). The charger adopting intelligent module design, easy to connect
with automation system; has function of self-protection;
6). The module equipped with alternating current under-voltage
protection and AC phase-lack protection to realize
alternating-current side protection; the module can recover normal
working state when input is normal; besides, the module is equipped
with lightning protection to realize slow starting function and
slow function;
7). Over-voltage protection: the module inputting voltage, capable
of automatically turning off machine, to realize load-side
protection; the over-voltage protective point of 220V module is
320V±5%, while 110V module is 160V±5%;
8). Short-circuit protection : when short-circuit fault occurs in
module input, the output voltage of module fall to 0V and input
current lower 15% than rated current; when fault is solved, the
module can work again;
9). Over-temperature protection: when radiator temperature detected
by module exceeds to 85°C, the system automatically turn off
machine; and when the temperature recover to normal scope, the
module can work again;10). module connection in parallel
protection: the module is equipped with circuit in parallel inside;
it can automatically log out system when fault occurs, and has no
effect on other modules.
Conditions of use
1. Ambient air temperature shall not be higher than +40℃ and not
lower than -5℃.The average temperature within 24 hours shall not be
higher than +35℃.
2. Indoor installation and use, the altitude of the use site shall
not exceed 2000m.
3. The ambient air relative humidity shall not exceed 5% when the
highest temperature is +40℃, and it shall be allowed to have a
large relative humidity at a lower temperature.(for example, 90% at
+20℃) the effect of occasional condensation due to temperature
changes should be taken into account.
4. The inclination of the equipment with the vertical plane shall
not exceed 5%.
5. The equipment shall be installed in a place free from violent
vibration and impact, and in a place not strong enough to cause
corrosion of electrical components.
4. Electrical panels Basic Parameters
| Item | Unit | Parameter |
| Rated operating voltage | V | AC380,660 |
| Rated insulation volatge | V | AC660,1000 |
| Horizontal busbar current rating | A | 1250 2000 2500 3200 |
| Vertical busbar current rating | A | 1000 |
| Max. feeder circuit current | A | 2500 |
| Max. drawer circuit current | A | 630 |
| Max. control motor capacity | kW | 320 |
| Rated frequency | Hz | 50/60 |
| Horizontal busbar peak withsatnd current | kA/0.1s | 105,176 |
| Horizontal busbar short-time withstand current | kA/1s | 50,80 |
| Vertical busbar peak withstand current | kA/0.1s | 105 |
| Vertical busbar short-time withstand current | kA/1S | 50 |
| Rated power freq. withstand voltage | V/1min. | 2500 |
| Secondary power freq. withstand voltage | V/1min. | 2500 |
| Enclosure protection degree | | IP30,IP40
|
5. Order information
Schematic diagram of main circuit or electrical schematic diagram
Arrangement and layout
Model, specification and quantity of main components.
Incoming and outgoing wire method and cable specification, etc
If bus connection is required between the devices, bus connection
and height from the ground shall be provided.
Working Environment
1. Indoor altitude above sea level: Maximum installation altitude:
2000m
2. Ambient air temperature: -5℃~+40℃ and the average temperature
should not
exceed +35℃ in 24h
3. Relative humidity should not exceed 50% at max temperature +40℃.
Higher
relative humidity is allowed at lower temperature. Ex. 90% at +20℃.
But in view of
the temperature change, it is possible that moderate dews will
produce casually.
4. No fire, explosion danger, serious pollution, chemical corrosion
and severe vibration
5. Installation gradient not exceed 5°
6. This product is suitable for the following temperature
transportation storage: -25℃ ~+55℃ 24h, in a short period of time (no more than 24hours) not more than+70℃.
Characteristics
This series of products with high breaking capacity, good dynamic
stability, advanced and reasonable structure, electrical program of
practical, series, strong versatility, various schemes of unit
combination, a cabinet contained many circuits, save the area ,
beautiful appearance, high level protection, safe and reliable,
convenient maintenance etc.
It accords with the standards IEC439 NEMA ICS2-322 as well as the
GB7251-87 “Low voltage complete switch device ” national standards
and ZBK36001-89 "low voltage withdraw type complete switch device”
professional standards"
