SINGLE PHASE VOLTAGE REGULATOR

The FARADY VR-8 single-phase step voltage regulator is a tap-changing autotransformer complying with IEEE C57.15, IEC 60076-21 and IEEE C57.12 standards. It regulates line voltage from 10% buck to 10% boost in 32 steps of about 5/8% each, rated from 2,400 V (60 kV BIL) to 34,500 V (200 kV BIL).
A three-unit bank delivers regulation up to 25 MVA, supporting star, open-delta and closed-delta connections. It features a high-speed reactance-type on-load tap changer (33 positions, 2 million mechanical operations), shunt and series arresters, a ratio correction transformer and a position indicator, and works with the SEL-2431 or FARADY Voltlogic-230 controller supporting MODBUS, IEC 101/104 and DNP 3.0 for SCADA/DMS integration, local and area voltage regulation, and bidirectional power flow.
With a 25-year service life and full IEEE/ANSI routine and type tests, the VR-8 is an economical alternative to MV grid expansion.

SINGLE PHASE TRANSFORMER

The Farady single-phase pole-mounted distribution transformer conforms to IEEE C57.12 series and NEMA standards. Rated from 5 kVA to 333 kVA with primary voltages up to 34,500 V, it is offered in conventional or CSP type, with copper or aluminium windings and CRGO or amorphous core, meeting DOE 2016 and NEMA TP1 efficiency requirements for 50 Hz or 60 Hz systems, from -25 C to +40 C.
It can be used alone or as a three-unit bank for three-phase service, pole or cluster mounted. Widely applied in rural areas, remote regions, industrial plants and energy-saving projects for railways and urban grids, it supplies reliable power for lighting, agricultural production and industrial loads.
Every unit undergoes full IEEE routine tests and type tests including temperature rise, BIL and sound level, ensuring consistent, long-life performance.

PHASE SHIFTING TRANSFORMER

Farady's phase-shifting transformer (PST) serves data centers (IDC), AIDC rooms, Panama power systems and MV UPS. Rated 1,000-5,000 kVA with 10 kV or 35 kV primary, it uses a multi-winding topology for 12-pulse or 24-pulse rectification, converting MV directly to DC bus power, saving space and CAPEX.
Precise secondary phase-shift control (+/-15 deg and +/-7.5 deg in 24-pulse systems) cancels low-order harmonics on the primary side, meeting IEEE 519. Rated K-13/K-20, it carries full harmonic load without de-rating, and secondary impedance unbalance below +/-0.5% ensures current sharing among parallel modules.
The H/C-class insulation system is UL certified at 220 degC (Class R), with NOMEX insulation and epoxy encapsulated disk windings. Losses meet GB 20052 Grade 1/2, reducing PUE. PT100 sensors, a temperature controller and an RS485 Modbus-RTU interface support monitoring, alarm, trip and fan control, and DCIM integration; forced air cooling adds 30%-40% capacity.