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BWDK-5000
series dry type transformer’s temperature monitoring
and controlling meter simple structure, nice appearance,
convenient installation. Users can repair or change
temperature controlling meter without interruption of
electricity power.
It adopts new-type anti-jamming design, and has strong
control ability to the interference brought by common
mode and different mode, and is in accord with each
index requirement of national electromagnetic compatibility.
Almost all the parts of temperature controlling meter
are imported from foreign countries, so as to guarantee
reliability of product quality and stability of performance.
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The screen adopt LED, which shows temperature
of three-phase winding separately, intuitionistic,
convenient and practical.
Product
functions:
A. the temperature of three-phase winding
is measured and showed on the same screen;
B. the temperature controlling meter can automatically
examine failures, over temperature, jumper brake
and send out alarm signal (the indication light
shines and the buzzer rings);
C. the fan has manual control/ automatic control,
two statuses to show, output and switch each other,
and it has timed starting and stop control function
(can set fan’s starting time and operation time);
D. compensation of all channels’ show value number
(used to regulate temperature difference to guarantee
measuring precision);
E. input (sensor) open circuit, short circuit
and failure’s automatic testing display and output;
F. “black casket” function: record the temperature
of each winding when the electrical supply is
interrupted, as well as the highest temperature
in history (used to offer reference to analyse
electric power accidents);
G. (require) testing function of environmental
temperature or iron core temperature; (give special
indication when order goods)
H. (require) with computer connection’s 232/485
communications function; (give special indication
when order goods)
I. simulation state testing (used to test whether
the temperature controlling meter can work normally). |
applicable occasions:
suitable for various large, middle
and small dry type transformers as well
as transformer substation (U);
can be installed on clamping apparatus and
shell of transformer’s body;
the starting electrical current at the time
transformer cools fan reaches 16A. |
technical index:
technical index:
environmental temperature: -20~55℃
relative temperature ≤90%（25℃）
working electrical source: AC220±V10% compensation
range of show value number: 0~±20.0℃
touch point of alarm: 7A/250VAC
sensor: platinum resistance （pt100）ф3
consumption power: 8W
measuring range: 0~±200.0℃
resolving power: 0.1℃
touch point of fan: 16A/250VAC
down-lead resistance: Ro≤100Ω(three-wire
connection)
precision: grade 0.5
(5700)external dimension: 160×80mm（width×
height）
(5700)hole dimension: (152+1)×(76+1)mm （width×
height）
(5800)external dimension: 200×260mm（width×
height）
(5800)hole dimension: (230+1)×(180+1)mm （width×
height） |
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Installation step:
1) properly treat embedded holes as well
as four stationary holes on the transformer’s
body according to installation diagram.
2) Open the door of temperature controlling meter
and put the meter into the hole.
3) Fasten the temperature controlling meter with
M4 bolts and fixed slices. |
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