Pole-Mounted Transformers

250 kVA CSP Single-Phase Pole-Mounted Oil Transformer

This 250 kVA single-phase oil-filled transformer adds CSP (Completely Self-Protected) circuitry to the standard pole-mounted platform, stepping 7.2 kV down…

Technical specifications

Technical specifications of 250 kVA CSP Single-Phase Pole-Mounted Oil Transformer
ParameterValue
Product TypeSingle-Phase Pole-Mounted CSP Oil-Filled Transformer
Rated Capacity250 kVA
Input Voltage (HV)7.2 kV (or custom)
Output Voltage (LV)120-240 / 240-480 / 347 / 600 V (or custom)
Frequency50 / 60 Hz
PhaseSingle
Winding MaterialCopper / Aluminium
Coil StructureFully Sealed Construction
ProtectionCSP (Completely Self-Protected)
ApplicationPower Distribution System
StandardIEC / GB
CertificationIEC, CE, ISO9001, ISO14001, ISO45001, CQC, GOST, EAC
PackingWooden Case

Data reflects the specifications supplied for this product. Final dimensions, materials, colors and packaging are confirmed against the approved sample and order.

Why buyers choose it

  • Built-in CSP protection against overload and fault conditions, no external gear needed
  • 250 kVA single-phase capacity aimed at overhead distribution feeders
  • Sealed, oil-filled cylindrical tank for long, low-maintenance outdoor life
  • Secondary configurable at 120-240 / 240-480 / 347 / 600 V, or custom
  • Certified to IEC, CE, ISO9001/14001/45001, CQC, GOST, EAC

Standards & certification

Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001; the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity. Every unit passes routine factory tests before dispatch.

Product details

This 250 kVA single-phase oil-filled transformer adds CSP (Completely Self-Protected) circuitry to the standard pole-mounted platform, stepping 7.2 kV down to 120–240 V or a custom secondary. Internal protection handles overload and fault conditions on its own, while the sealed cylindrical tank is built for outdoor utility-pole service — copper or aluminium windings, certified to IEC and other recognized standards.

Design & Construction

High-voltage porcelain bushings sit on the cover of the sealed cylindrical steel tank, low-voltage terminals are mounted to the side, and brackets are ready for direct pole attachment. The CSP feature bundles internal fusing and overload protection right into the unit, and because the tank is oil-filled and hermetically sealed, the windings are shielded from moisture while the oil handles cooling — giving reliable, largely maintenance-free single-phase service.

Applications

Overhead distribution lines for residential neighborhoods, rural electrification, farms, streets and light-commercial loads where self-protected single-phase pole-mounted step-down is needed.

Customisation Options

Capacity, HV/LV voltage, winding metal, bushing type and mounting hardware can be tailored to local grid standards, ANSI and IEC among them.

Ordering Information

  • Sold as a single item
  • Wooden-case packing
  • Built to IEC / GB; certified IEC, CE, ISO9001/14001/45001, CQC, GOST, EAC

Product details in pictures

250 kVA CSP Single-Phase Pole-Mounted Oil Transformer — detail 1
250 kVA CSP Single-Phase Pole-Mounted Oil Transformer — detail 2
250 kVA CSP Single-Phase Pole-Mounted Oil Transformer — detail 3
250 kVA CSP Single-Phase Pole-Mounted Oil Transformer — detail 4

Frequently asked questions

What is the rated capacity of the 250 kVA CSP Single-Phase Pole-Mounted Oil Transformer?

The rated capacity is 250 kVA, with an input voltage of 7.2 kV (or custom). Other ratings in the same series are quoted on request.

What are the main advantages of this pole-mounted transformer?

Built-in CSP protection against overload and fault conditions, no external gear needed; 250 kVA single-phase capacity aimed at overhead distribution feeders; Sealed, oil-filled cylindrical tank for long, low-maintenance outdoor life.

Can this product be customised to my specification?

Capacity, HV/LV voltage, winding metal, bushing type and mounting hardware can be tailored to local grid standards, ANSI and IEC among them.

Which standards and certifications apply?

Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001, and the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity.

Quotation

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