Prefabricated Compact Substation
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The prefabricated compact substation is one kind of compact complete set of distribution equipment which designed combining medium voltage switchgear, low voltage switchgear, distribution transformer, energy metering devices and reactive power compensation devices into one or several boxes according to a certain wiring scheme. It is suitable for three-phase AC systems with a rated voltage of 11KV or 33KV for line and distribution of electrical energy.
Compact Substation Parameter
| No. | Content | H.T Side | Transformer Side | L.T Side |
| 1 | Rated Capacity | - | 50-3150kVA | - |
| 2 | Rated Voltage | 10(35) kV | 10(35) 0.4kV | 0.4kV |
| 3 | Rated Current | 400-600A | - | 400-6300A |
| 4 | Rated Short-circuit Breaking Current | ≥20kA | - | ≥30kA |
| 5 | Rated Short Circuit Making Current | 50kA | - | - |
| 6 | Rated Thermal Stability Current | ≥20/4kA/S | - | ≥30/1kA/S |
| 7 | Power Frequency Withstand voltage in 1 min | Earth:42(95kV Fracture:48(110) kV | - | 1.89 |
| 8 | Lightning impulse Withstand Voltage | Earth:75(185) kV Fracture:85(215) kV | - | - |
| 9 | Degree of Protection | IP33D | ||
| 10 | Noise Level | ≤65DB (dry type transformer) ≤65DB (dry type transformer) |
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Prefabricated compact Substation Features
- The cabinet has two structures: one is skeleton welding, which weld skeleton with steel first, then pull riveting or weld panel. Another is skeleton assembly; the steel plate is formed by bending and forming the surface. Finally, the steel plate is assembled by bolt connection. The skeleton assembly is characterized by the expansion of the low voltage outgoing unit, which can be placed with no less than 6 panels of low voltage switchgear, with 812 loops. The prefabricated substation can be set up to operate the hallway and duty room.
- lt has good heat insulation and ventilation measures. A double layer's structure is adopted in the cabinet, and the heat insulation material is also set in the interlayer, which effectively reduces the temperature rise caused by sunshine. The transformer compartment is arranged on the. At the top of the side gate automatic ventilation fan, the upper part is provided with a shutter, can guarantee that the transformer can work safe at full load in high temperature season.
- Safe and reliable operation. The H.T side of the transformer substation selects RMU model XGN15- 12 and SRM-12, could also adopt other types of metal clad switchgear, complete five-preventions interlock. Each door frame has a good waterproof structure.
- lt is convenient to operate and maintain. Each compartment has an automatic lighting device, transformer compartment has track and cart, convenient for transformer installation, maintenance and replacement. The H.T and L.T compartments adopt front wiring and front maintenance.
- The appearance is beautiful and durable. The cabinet shell is made of high-performance marine zinc rich epoxy primer and epoxy anticorrosive mortar, which has good anticorrosive property, and the surface color can be configured arbitrarily with the environment. All electrical installations are all galvanized, and it adopts a special anti-blocking and anti-rust universal lock.
Packaging&Shipping
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