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Compact Mining Substation

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Compact Mining Substation

We offers an environmentally responsible, high efficiency, safer choice. The units have high-fire-point fluid, providing fire safety benefits, and a projected life well beyond that of a traditional mineral-oil transformer. These efficient and cost-effective transformers use Envirotemp™ FR3™ fluid. Transformers are manufactured in 50 - 10,000kVA, in primary voltage classes of 11kV,15 kV, 25 kV and 35 kV.

kVA
50-20,000
Primary Voltage
Up to 34,500 V
Secondary Voltage
208-14,400 V

Three-phase, compact mining substation, for using on underground power distribution systems, are best suited for commercial applications in public access areas and where underground service is required. These transformers meet modern design requirements for flexibility and provide a visually pleasing installation. Construction allows installation in locations accessible to the general public without the need for protective fencing or vaults. These units are ideally suited for apartment buildings, schools, hospitals, shopping centers, commercial buildings, or industrial sites.


-Sealed tank construction

-Special waste disposal considerations

-Insulation temperature limit: 120 °C

-Temperature rise: 65 °C (standard); 55 °C or 55/65 °C (optional)

Special Design Options

-Special sound requirements

-Special altitude requirements

-Retrofit designs

-Higher efficiency requirements

-Special ambient conditions


Applicable Standards

-IEEE C57.12.00—Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

-IEEE C57.12.34—Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 2,500 kVA and Smaller: High Voltage, 34,500 GrdY/ 19,920 V and Below; Low Voltage, 480 V and Below

-IEEE C57.12.28—Standard for Pad-Mounted Equipment—Enclosure Integrity

-IEEE C57.12.70—Standard for Terminal Markings and Connections for Distribution and Power Transformers

-IEEE C57.12.80—Standard Terminology for Power and Distribution Transformers

-IEEE C57.12.90—Standard Test Code for Liquid-Immersed Distribution, Short-Circuit Testing of Distribution and Power Transformers

-IEEE C57.13—Requirements for Instrument Transformers

-ANSI/IEEE 386—Separable Insulated Connector Systems for Power Distribution Systems Above 600 V

-ASTM D877—Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes

-NEMA AB1—Molded Case Circuit Breakers

-NEMA TR1—Transformers, Regulators, and Reactors


Main Designation Characteristics

The crust of the substation is designed according to the foreign advanced technology and physical reality. We provide many kinds of crust material such as aluminum alloy steel composite stainless steel board and non metal material(glass fiber).

The HV side use charge switch or vacuum circuit breaker. The transformer could be oil type hermetically-sealed type and dry type.

The proof of the box is double layers structure and between the layers is filled with foam. There are independent boards in HV and LV room, and in the transformer room will install auto thermal controller heater and cooling equipment.

Note: we offer special customized products according to client’s requirement.

Main technical specifications

NameUnitHV equipmentTransformerLV Equipment
Rated voltagekV12/24/36(12/24/36)/0.40.4
Rated currentA6303/75-150/3750Less than 4000
FrequencyHz50
Rated CapacitykVA50-2500
Pfr withstandkV42/50/70/952.5
BILkV75/125/170/185
Crust Protection Grade
IP23Oil type 55; dry type 65IP23
Noisy GradedB


Appearance DimensionsmmAccording to primacy wiring circuit schema
HV RoomLV RoomTransformer Room


Main Designation Characteristics

The crust of the substation is designed according to the foreign advanced technology and physical reality. We provide many kinds of crust material such as aluminum alloy steel composite stainless steel board and non metal material(glass fiber).

The HV side use charge switch or vacuum circuit breaker. The transformer could be oil type hermetically-sealed type and dry type.

The proof of the box is double layers structure and between the layers is filled with foam. There are independent boards in HV and LV room, and in the transformer room will install auto thermal controller heater and cooling equipment.

Note: we offer special customized products according to client’s requirement.



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