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MA-001 – TRANSFIX-family Installation Manual – Rev 3.0 18-Jan-16 Page 5 of 55

1 INTRODUCTION

1.1 Product Overview

The TRANSFIX™ family of products (herein referred to as the product, meaning the

TRANSFIX 1.6, MULTITRANS and TAPTRANS) are on-line DGA (Dissolved Gas Analysis)

systems for transformer diagnostics. The products measure the following key fault gases

in the transformer oil: hydrogen, methane, ethane, ethylene, carbon monoxide, carbon

dioxide and acetylene. In addition they also measure oxygen, nitrogen as well as

moisture in the oil and the transformer load current. Such data provides insight on

transformer condition criteria, such as developing faults, paper degradation and

electrical arcing. Once installed, operation is straightforward. All results are stored within

the product, but can be downloaded to a PC for analysis.

In addition, the MULTITRANS has the facility to measure oil from three separate oil tanks,

for example, three transformer tanks operating in a single phase bank. The TAPTRANS

has the facility to measure oil from the transformer main tank and on-load tap changer

(OLTC), including both the separate diverter tank and selector tank where one exists.

The key features and characteristics are summarised as follows:

 Utilises dynamic headspace sampling to extract target gases from the oil sample.

 No consumables, such as carrier gases are required.

 Accurate results are available as often as once per hour.

 Minimal maintenance.

 Uses highly accurate and stable Photo-acoustic Spectrographic technology.

 Fully embedded microprocessor with non-volatile internal memory storage for

10,000 records.

 Stainless steel outdoor-rated IP55 enclosure connected to the transformer by

robust stainless steel tubing.

 All gas sensing is carried out internally – no external gas sensors.

 Transformer load tracking is available.

 Six user-configurable relay contacts based on absolute gas and moisture values.

 Two user-configurable sunlight-visible LED arrays on the exterior of the enclosure

– one red for alarm, one yellow for caution.

 Two standard sunlight-visible LED arrays – green for power, blue for service.

 Communication options include: Ethernet, RS-232, Cellular modem (GSM/GPRS),

PSTN modem, RS-485 and Fibre Optic. Other options may be available on request.

 Internal USB connection provided for commissioning and service, or local data

download.

GE Kelman TRANSFIX 1.6 User Manual

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