COMEM eDTI 사용 설명서 - 페이지 4

{카테고리_이름} COMEM eDTI에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. COMEM eDTI 20 페이지. Temperature monitoring unit

TEMPERATURE MONITORING UNIT DTI AND EDTI

DTI and eDTI

Product description

The Temperature monitoring device DTI/eDTI is used in resin or dry type transfor-

mers and can also be easily adapted for use in oil transformers.

The DTI/eDTI uses PT100 temperature probes for a constant monitoring of tran-

sformer temperatures. The device generates two intervention levels of electric

signals (alarm and trip).

Safety notes on the equipment operation

The electrical installation must conform to the national safety regulations.

The Temperature monitoring device DTI/eDTI has double insulation. Earthing is

not required.

CAUTION

The wires must be fixed properly

The DTI family are devices which use PT100 temperature probes for constant

monitoring of transformer temperatures in 4 points: three on the transformer

winding columns and one on the machine's magnetic circuit.

If the transformer malfunctions, causing its temperature to rise, DTI unit genera-

tes an alarm signal. If the temperature reaches danger levels the unit generates a

second intervention level. Moreover, a switch can manage the fan.

Installation

The device must be installed and used by personal opportunely learned.

Before to proceed at the installation it's necessary to verify if the device is intact

and it hasn't damages due to transportation or handling. The power supply must

be compatible with the device range. The instrument installation must be done in

total absence of voltage and observing the security norm in force.

All operation of maintenance and reparation executed by not authorized persons

are forbidden.

If during the functioning the device becomes unsafe, it's necessary to put it out of

action and to be sure that this device won't be used unintentionally.

The use shall be considered unsafe when the instrument:

• doesn't work regularly

• has damage clearly visible

• has damage caused of transport or handling

• is stored in bad condition