Winding and Oil Temperature Indicators (WTI/OTI)

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 852-013 OTI calculates and displays the oil temperature.

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.

852-XXX Series WTI A new version of 852 WTI, that builds on the reliability and features of its predecessor. Available in a variety of models to meet the varying needs of the transformer industry.	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.	852Plus Series WTI The 852Plus range was one of the worlds originals in electronic WTI. Although still manufactured for specific applications, the new 852-XXX range is recommended for most.

NEW 852 set up and configuration software available:
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 – Isolated USB interface to allow for quick and safe configuration of 852 series WTI.