500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation
500KVA 1000KVA MV Three Phase Compact Prefabricated Substation

500KVA 1000KVA MV Three Phase Compact Prefabricated Substation

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Product Overview

Description


General
Three-phase, transformer substation, for use 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.


Environmental Information

-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
Item
Unit
HV Department
Transformer
LV Department
Rated Voltage
kV
12/24/36
(12/24/36)/0.4
0.4
Rated Current
A
630
3/75-150/3750
Less than 4000
Frequency
Hz
50
Rated Capacity
KVA
50-2500
Pfr Withstand
kV
42/50/70/95

2.5
BIL
kV
72/125/170/185

/
Crust Protection Grade

IP23
Oil type 55,
 Dry type 65
IP23
Appearance Dimensions
mm
According to primacy wiring circuit schema
Item
Unit
HV Department
Transformer
LV Department
Rated Voltage
kV
40.5
40.5/12/0.69/0.4
12/6.3/0.69/0.4
Rated Current
A
Less than 1250
/
Less than 4000
Frequency
Hz
50
Rated Capacity
KVA
1250-20000
Pfr Withstand
kV
70/95

42/2.5(Auxiliary)
BIL
kV
170/185

75
Crust Protection Grade

IP23
Oil type 55,
 Dry type 65
IP23
Appearance Dimensions
mm
According to primacy wiring circuit schema
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

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