GGD AC Low Voltage Power Distribution Cabinet
GGD AC low-voltage power distribution cabinet is suitable for power distribution systems such as power plants, substations, factories and mining enterprises with AC 50Hz, rated working voltage 380V, and rated working current to 3150A. For distribution and control.
GGD AC low-voltage distribution cabinet is a new type of low-voltage distribution cabinet designed on the principle of safety, economy, rationality and reliability according to the requirements of the competent superior of the Ministry of Energy, the majority of power users and the design department. The product has the characteristics of high breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination structure, high protection level, etc. It can be used as a replacement product of low-voltage switchgear.
Type designation
| Model: | G G D □ – □ □ |
| G | Power cabinet |
| G | Electrical components fixed installation and fixed wiring |
| D | AC low voltage distribution cabinet |
| □ | Design Number 1-breaking capacityis 15kA 2-breaking capacityis 30kA 3-breaking capacityis 50kA |
| □ | Main circuit scheme number |
| □ | Auxiliary circuit scheme number |
Environmental conditions
● The ambient air temperature shall not be higher than 40℃, not lower than -5℃, and the average temperature within 24 hours shall not be higher than 35℃.
● For indoor installation and use, the altitude of the place of use shall not exceed 2000m.
● The relative humidity of the surrounding air shall not exceed 50% when the maximum temperature is 40℃. A relatively higher relative humidity is allowed at lower temperatures (for example, 90% at 20℃), taking into account the impact of occasional condensation due to temperature changes.
● When the equipment is installed, the inclination to the vertical plane shall not exceed 5 degrees.
● The equipment shall be installed in a place without violent vibration and impact and where the electrical components are not subject to significant corrosion.
● If users have special requirements, they can negotiate with the manufacturer.
Shape and installation dimensions
| Universal cabinet code | A | B | C | D |
| GGD06 | 600 | 600 | 450 | 556 |
| GGD06A | 600 | 800 | 450 | 756 |
| GGD08 | 800 | 600 | 650 | 556 |
| GGD08A | 800 | 800 | 650 | 756 |
| GGD10A | 1000 | 600 | 850 | 556 |
| GGD10A | 1000 | 800 | 850 | 756 |
| GGD12 | 1200 | 800 | 1050 | 756 |
| Model | Rated voltage(V) | Rated current (A) | Rated short-circuit breaking power (kA) | Rated short-time withstand current(1s) (kA) | Rated peak withstand current (kA) | |
| GGD1 | 380 | A | 100 | 15 | 15 | 30 |
| B | 600（630） | |||||
| C | 400 | |||||
| GGD2 | 380 | A | 1500（1600） | 30 | 30 | 63 |
| B | 1000 | |||||
| C | 600 | |||||
| GGD3 | 380 | A | 3150 | 50 | 50 | 105 |
| B | 2500 | |||||
| C | 2000 |
Main technical paramete
| Brand | ZHENGXI |
| Model | DCJ1-NZ3 |
| Frequency | 50Hz/60Hz |
| Rated Voltage | High voltage electrical appliance:6/10,transformer :6/0.4 10/0.4, Low voltage electricalappliance:0.4 |
| Rated Capacity | transformer: 50kva~600kva |
| Rated Current | High voltage electrical appliance:200A,400A,630A,Low voltage electrical appliance.100A~3200A |
| Rated Open Circuit Start Current | High voltage electrical appliance:Combination switch depends on fuse Low voltage electrical appliance:15(1s) |
| High voltage electrical appliance:Load switch 400A~630A, Low voltage electrical appliance:15kV~63kV | |
| Rated Short-Time Withstand Current | High voltage electrical appliance:16kA,20kA(4S) Low voltage electrical appliance:30kA(1S),30kA |
| Rated Peak Withstand Current | High voltage electrical appliance:16kA,20kA(4S Low voltage electrical appliance:30kA(1S),30kA |
| Power Frequency Withstand Voltage(1Min) | High voltage electrical appliance:Relatively and phased32/42,solation fracture36/48 Low voltage electrical appliance:>0.3kv,2.5kV |
| Lightningimpulse Withstand Voltage (Peak) | High voltage electrical appliance: Relatively and interphase 60/75,lsolation fracture 70/85 Low voltage electrical appliance:60/75 |
| Box Protection Level | Low voltage electrical appliance:lP20 |
| Noise Level | Low voltage electricalappliance:55db |
| Executive Standard | GB/T 17467 《High-voltage and low-voltage pre-assembled substation》. DL/T537 Technical Conditions for Ordering 6-35kV Box-type Substation |
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