Overview
The YB□-12/0.4 prefabricated substation (European type) produced by RUY Power is widely used in urban power network renovation, residential communities, high-rise buildings, factories and mines, hotels, shopping malls, airports, railway stations, oil fields, docks, expressways, and other indoor and outdoor locations with distributed power supply.
Normal Operating Conditions
1. Altitude not exceeding 1000m;
2. Ambient temperature: -25℃ ~ +40℃;
3. Relative humidity: daily average not greater than 95%, monthly average not greater than 90%;
4. Installation site: free from fire, explosion hazards, conductive dust, chemically corrosive gases and violent vibration. If the above conditions are exceeded, users may negotiate with RUY Power.
Functions and Features
1. High-voltage switchgear, transformer and low-voltage switchgear integrated in one unit, with strong completeness;
2. Complete high- and low-voltage protection, safe and reliable operation, simple maintenance;
3. Small footprint, less investment, short production cycle, easy to move;
4. Fewer wiring schemes and flexible combinations;
5. Unique structure: sandwich composite double-layer structure (composite board) with sturdy shell, heat insulation, ventilation, and aesthetic appearance. Various shell protection levels available; shell materials include stainless steel composite, aluminum alloy, cold-rolled sheet, color-coated steel sheet, etc.;
6. Various types: general type, compact type, and humanized type;
7. The high-voltage ring main unit can be equipped with network automation terminals (FTU) to implement cable automation and single-phase grounding fault detection, with “four remote” functions, convenient for matching with distribution automation upgrade.
Transformer
The intelligent integrated substation adopts low-loss, oil-immersed, fully sealed S9, S10, S11 series transformers. NOMEX insulation environmentally friendly dry-type transformers can also be selected. A trolley can be installed at the bottom for convenient access to the transformer.
High-Voltage Side
The high-voltage side of the intelligent integrated substation generally adopts a load switch – fuse combined electrical appliance protection scheme. After one fuse of the fuse blows, all three phases trip simultaneously. The load switch can be air type, vacuum type, SF6 type, etc., and can be equipped with electric operating mechanisms to realize automation upgrade. The fuse is a high-voltage current-limiting fuse with striker, reliable action and large breaking capacity. For main technical parameters see the table below. For transformers of 800kVA and above, QCE4, QCE2, QCE1 and other vacuum circuit breakers can be selected for protection.
Load Switch Technical Parameters
| No. | Item | Unit | N12-12 Load Switch | FZN25-12 Vacuum Load Switch |
|---|---|---|---|---|
| 1 | Rated voltage | kV | 10 | |
| 2 | Maximum operating voltage | kV | 12 | |
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated current | A | 630 | |
| 5 | Rated load-breaking current | A | 630 | |
| 6 | Short-time withstand current (effective value) | kA/S | 20/2 | 20/4 |
| 7 | Dynamics stable current | kA | 50 | 50 |
| 8 | Short-circuit making current (peak) | kA | 50 | 50 |
| 9 | Number of full-load breaking operations | times | 20 | 10000 |
| 10 | Mechanical life | times | 2000 | 10000 |
| 11 | 1min power-frequency withstand voltage (between phases and to earth) | kV | 42 | 42 |
| 12 | Lightning impulse withstand voltage (between phases and to earth) | kV | 75 | 75 |
High-Voltage Fuse Technical Parameters
| No. | Rated Voltage (kV) | Breaking Current (A) | Breaking Current (kA) | Fuse Link Rated Current (A) | |
|---|---|---|---|---|---|
| British Code | Domestic Code | ||||
| SDL·J | 12 | 40 | 31.5 | 6.3 10 16 20 25 31.5 40 | |
| SFJ·J | XRNT-12 | 12 | 100 | 31.5 | 50 63 71 80 100 |
| SKL·J | 12 | 125 | 31.5 | 125 | |
*Note: depends on whether a striker is installed; N = without striker, A = with striker.
Low-Voltage Circuit Breaker Parameters
| No. | Tripper Form | Tripper Rated Current A | Breaking Capacity kA (AC380V) |
|---|---|---|---|
| DW15-630 | Thermal-electromagnetic or electronic type | 315,400,630 | 40 |
| DW15-1000 | 630,800,1000 | 50 | |
| DW15-1600 | 1600 | 50 | |
| DW15-2500 | 1600,2000,2500 | 60 | |
| CW1-2000 | Intelligent type | 630,800,1000,1250,1600,2000 | 65(80) |
| CW1-3200 | 2000,2500,3200 | 100 |
Frequently Asked Questions
What is the rated voltage of the YB□-12/0.4?
The YB□-12/0.4 Prefabricated Substation (European Type) operates at 12/0.4 kV, suitable for the intended distribution application.
Does the YB□-12/0.4 support OEM / ODM orders?
Yes. RUY Power provides custom branding, packaging and configuration for the YB□-12/0.4 Prefabricated Substation (European Type) to meet project requirements.
What standards does the YB□-12/0.4 comply with?
The YB□-12/0.4 Prefabricated Substation (European Type) is designed and type-tested in accordance with GB/T17467 and DL/T537.
What is the lead time for the YB□-12/0.4?
Standard lead time is 15-30 days depending on configuration and order quantity. Contact RUY Power for a precise delivery schedule.
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