UTXvRNT – Computers & Control

Transformer Voltage Regulator UTXvRNT

The transformer voltage regulator is intended for use in all regulation systems with an on-load tap changer on any high and medium voltage lines operating with a grounded, compensated or insulated star point. The device ensures quick and reliable adjustment. Extensive functions of compensation for voltage drops, settings, calendar, event and disturbance recording and voltage quality recording ensure the implementation of even the most sophisticated applications.

Additionally, a reactive power control mode is available in cooperation with a compensation coil (RNTQ mode).

UTXvRNT - Transformer Voltage Regulator

The basis for reliable operation of the machine is precise and fast measurement of analog quantities and precise calculation of modules and voltage vectors.

UTXvRNT Series 3 is available in the following versions:

UTXvRNT2 series 3 – regulator designed to work with a two-winding transformer, has one set of analog measurement inputs U1 and I1.
UTXvRNT3 series 3 – regulator designed to work with a three-winding transformer, has two sets of analog measurement inputs U1/U2 and I1/I2.

All varieties are standardly equipped with:

8 output relays,
14 binary inputs (including 8 high-voltage inputs 90 – 300[V]AC/DC and 6 inputs 12 and 24[V]DC) intended for cooperation with the decoder of the current DPZ tap number.

Characteristics of the Transformer Voltage Regulator UTXvRNT

multi-processor measurement and decision-making system,
completely digital information processing,
work with two or three winding transformers,
work in automatic and manual mode,
extensive logical functions with programmable functors,
four regulation modes in RNT mode:
- based on the voltage of the U1 circuit,
- based on the voltage of the U2 circuit,
- based on the average value of U1 and U2 voltages,
- based on the maximum value (U1,U2),
two regulation modes in RNTQ mode:
- based on the tan value of circuit 1,
- based on the reactive power value of circuit 1,
year-round calendar enabling free change of the set voltage level,
five setting banks with the option of automatic selection of the active bank,
galvanic separation of analog and binary inputs and outputs,
XR and Z type compensation set independently for individual measurement circuits,
tap changer motor overcurrent protection,
power quality control system,
tap changer remote control function,
reporting work progress using event and disturbance recorders,
local graphic display,
16-LED programmable synoptic display and 11-key keyboard,
reading of measurement values on the display and their transmission to the superior system,
possibility of simultaneous support of the IEC 870-5-103 and CC-Bus protocols,
counters for deviations, switches made and device operating time,
permanent control of the device’s internal systems,
three password-protected permission levels,
possibility of visualization, control and configuration via the SAZ 2000 program.

Transformer Voltage Regulator UTXvRNT

UTXvRNT - Transformer Voltage Regulator

Characteristics of the Transformer Voltage Regulator UTXvRNT

Technical Documentation

Karta Katalogowa UTXvRNT

Deklaracja Zgodności CE UTX

Technical Documentation

Karta Katalogowa UTXvRNT

Deklaracja Zgodności CE UTX