Distribution Transformers: Secondary Units
General Characteristics:
Phases: Three
Frequency: 50 Hz, 60Hz
Standard: IEEE, CSA, IEC
Tank Type: Secondary Unit Substation (SUSS), Station
Base rating: 45 kVA through 10,000 KVA
High Voltage (HV): 2.5 kV through 46 kV
Low Voltage (LV): 120 V through 25,000 V
Windings: Copper, Aluminum
*Available in various design configuration to accommodate application of the transformers
Cooling Info:
Temp Rise: 55C, 55/65C, 65C, 75, 65/75, 55/65/75
Cooling Class: ONAN, ONAN/ONAF, KNAN, KNAN/KNAF
Oil: Cross Tran Mineral Oil, FR3 Enviro Temp
Tank:
Tank Cover: Welded, Bolted
Tank Handholes: 10×13, 10×16, 13×19, 15×24
Tank Base: Gull-Wing, Inverted Channel
HV Bushing Security: Air Terminal Chamber, Flange, Throat, hinged or bolted access, etc.
LV Bushing Security: Air Terminal Chamber, Flange, Throat, hinged or bolted access, etc.
Paint: Standard Gray (ASA #70 GRAY), Customizable Colors, etc.
Steel: Mild Steel, 304 Stainless Steel
Bushings:
HV Bushing Location: IEEE segment 1-4, Cover or Side
HV Terminations: Porcelain Bushings, Eyebolts, Spades, Condenser Type Bushings, Etc.
LV Bushing Location: IEEE segment 1-4, Cover or Side
LV Terminations: Epoxy Bushings, Studs, Spades, Eyebolts, Porcelain Bushings, Eyebolts, Spades, Condenser Type Bushings, Etc.
Accessories:
Fusing: Bayonet, Weak Link Cartridge, Partial Range Current Limiting Fuse (CLF), Molded Vacuum Interrupter, Vacuum Fault Interrupter.
Breakers: Under Oil, Molded Case
Arresters: Distribution Class, Intermediate Class, Station Class
Fill/ Drain Provisions: Plug, Valve, Valve w/ Sampler
Gauges: Liquid Level, Liquid Temperature, Pressure Vacuum, Winding Temperature, Additional Contacts, etc.
Pressure Relief Devices: Pressure Relief Valve, Cover Mounted Pressure Relief Device, etc.
Misc.: Rapid Rise Relay, Fill Valve, Gas Test Valve, Grounding Resistor, Ground Lugs, Schrader Valve, Ground Pads, Metering, etc.
Installation:
Please download our Instruction Manual to learn how to correctly install and operate our Three-Phase Secondary Unit Substation and Station Type Transformers.
