Overview
YB series substation is a kind of compact power distribution device that integrates medium voltage electrical equipment, transformer, and low voltage electrical equipment. It can be used in high-rise buildings, building in urban and rural areas, residential communities, high-tech development areas, small and medium-size factories. mining areas, oil fields, temporary construction sites, and other premises. It also can be used for acceptance and distribution of power in the power distribution systems of 6-15KV, 50HZ (60HZ), ring main power distribution system, and double power supply or radiate terminal power distribution system.
Operating Conditions
1. Altitude: 1000m;
2. Ambient temperature: -25℃ ~+40℃;
3. Relative humidity: Daily average not exceeding 95%,Monthly average not exceeding 90%;
4. Installation location: A location free from fire, explosion hazards, conductive dust, chemical corrosive gases, and severe vibrations;
When the above normal use conditions are exceeded, the user can negotiate with the company.
Model and meaning
Technical Specification
Prefabricated Substation Parameter
| Item | Unit | Parameter | ||
| MV Unit | Rated frequency | Hz | 50 | |
| Rated Voltage | V | 7.2 | 12 | |
| Rated Current | A | 400、630 | ||
| Transfer current | A | 1200-3150 | ||
| Power Frequency Withstand Voltage (to ground/isolation break) | KV | 42/48 | ||
| Lightning Impulse Withstand Voltage (ground/isolation fracture) | KV | 75/85 | ||
| Rated Short-Circuit Breaking Current(injection fuse) | KA | 31.5 | ||
| Rated Capacity | kVA | 30-2000 | ||
| Tapping Range | ±2×2.5%,±5% | |||
| Transformer Unit | Connection Group | Yyn0、Dyn11 | ||
| Impedance Voltage | % | 4、4.5 | ||
| LV Unit | Rated Voltage | V | 220、380 | |
| Main Bus Rated Current | A | 50-4000 | ||
| Branch Current | A | 5-800 | ||
| Shell | Protection Level(Standard) | IP33D | ||
| Noise Level | dB | ≤50 | ||
Load Switch Parameter
| Item | Unit | Parameters | |
| FKN12-12 Load Switch | FZN25-12 Vacuum Load Switch | ||
| Rated Voltage | kV | 12 | |
| Rated Frequency | Hz | 50 | |
| Rated Current | A | 630/125 | |
| Rated Breaking Load Current | 630 | ||
| Thermal Withstand Current | kA/s | 20/2 | 20/4 |
| Dynamic Withstand Current | kA | 50 | |
| Rated Short-circuit Making Current(Peak) | 50 | ||
| Full Load Breaking Times | Times | 100 | |
| Mechanical Life | 3000 | 5000 | |
| Rated Short-circuit Breaking Current (phase to phase and to ground)/break |
kV | 42/48 | |
| Lightning Impulse Voltage (phase to phase and to ground)/break | 75/85 | ||
Medium Voltage Fuse Parameters
| Model | Rated Voltage(kV) | Breaking Current(A) | Rated Current(kA) | Fuse Rated Current(A) | |
| UK Model | Chinese Model | ||||
| SDL※J | XRNT-12 | 12 | 40 | 31.5 | 6.3/10/16/20/25/31.5/40 |
| 100 | 50/63/70/80/100 | ||||
| 125 | 125 | ||||
Low Voltage Circuit Breaker Parameters
| Model | Type of Release | Rated Current of Release(A) | Switching Capacity (kA/AC380V) |
| DW15-630 | Thermal-magnetic | 315/400/630 | 40 |
| DW15-1000 | 630/800/1000 | 50 | |
| DW15-1600 | 1600 | ||
| DW15-2500 | 1600/2000/2500 | 60 | |
| CW1-2000 | Intelligent | 630/800/1000/1250/1600/2000 | 65(80) |
| CW1-3200 | 2000/2500/3200 |
If you need more detailed information, please view the pdf document above or contact us.
