852Plus WTI

Ashridge design and manufacture the complete range of National Grid Approved winding and oil temperature indicators which provide high integrity protection, control and monitoring for power transformers.

Applications:

Winding Temperature Indicators
Transformer Cooling Control
Temperature Measurement

The market leading Series 852 WTI’s continuously calculate the winding temperature (otherwise known as the hot spot) in the transformer and display the hottest winding.

The extensive range includes alarm relay output, data logging, expired life, wide range of CT inputs, 1, 2, or 3 winding versions, dual display and an intelligent cooling control system with ‘deviation from normal’ alarms to ensure optimal asset life and protection for the transformer. All models are easy to install or retrofit using either the integral keypad or by using Ashridge’s configuration and set up software.

Software – Ashridge now provide a configuration software utility which can be used to connect to any 852 Series WTI / OTI by using MODBUS to read and edit parameter settings. The software can also provide a download of the settings in TEXT format for incorporating in documentation. To use the software with a PC the Ashridge USB to RS485 configuration lead will need to be purchased. This is supplied as a set with the program and user manuals provided on a USB memory stick. The configuration software also contains a utility to enable download of the logs from the 852 memory.

DIN USB RS485 – DIN rail mounted, isolated USB interface to allow for quick and safe configuration of all 852Plus and 852-XXX series WTI.

852Plus Panel Mount

National Grid approved model featuring watchdog + 5 relays, 2 analogue outputs, Modbus communications, intelligent cooling system, expired life and data logging.  The 852Plus is a single winding version with single display.

Transformer Accessories

We provide a number of accessories that support our products, from CTs, PT100 probes & pockets to communications leads.

Custom accessories are also provided,  please contact us to find out more.