TECSYSTEM TRBH, Инструкция по эксплуатации, Страница: 7 / 24

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TRBH SYSTEM
TRBH SYSTEM PRESENTATION
The TRBH SYSTEM , installed on the resin transformers, will allow thermoregulation of the single phase U-V-W of the
transformer. Activation of the ventilation system and the regulation of the air flow of the fans will be managed by the
thermometric control unit models: NT935BH-D and NT935BH-ETH.
The activation and shutdown of the ventilation system, programmable on the thermometric devices, they will be anticipated
by 10° C with respect to the FAN1 ON threshold (programmed on CH1-CH2-CH3): ON speed S1 and OFF speed S0,
maximum speed S10 will reach at the threshold value of FAN1 ON.
E.g. threshold programming FAN1 ON 70°C
•
Activation of ventilation system TRBH ON 61°C, speed (rpm) fan S1.
•
Switch off ventilation system TRBH ON 60°C, speed (rpm) fan S0
The speed regulation (rpm) on the fans is divided into 10 steps in relation to the temperature detected on the CHF channel
and to the FAN 1 ON value.
E.g. programming of the threshold FAN1 ON 70°C, the fan speed will progressively increase in relation to the temperature
detected on the individual channel, see table example speed CH1.
table example speed CH1
Temperature CH1 Motor S and Rpm Speed Fan flow rate
mᶟ/h
TG180BH TG360BH TG500BH
60°C S0 = OFF OFF OFF OFF
61°C S1 = 1500 220 430 507
62°C S2 = 1650 245 455 567
63°C S3 = 1780 265 535 617
64°C S4 = 1925 295 580 650
65°C S5 = 2075 335 630 710
66°C S6 = 2220 370 700 775
67°C S7 = 2365 390 750 850
68°C S8 = 2500 410 795 890
69°C S9 = 2650 430 850 960
70°C S10/full Speed = 2800 rpm 450 880 1000
NOTE: The speed regulation on the installed fans, with reference CH2 and CH3, will be managed in relation to the
temperature increase on the relative channel (selections B2-M3 and B1-M3).
The TRBH system will introduce the following advantages into your system:
•
Containment of thermal and mechanical shock
•
Stress reduction of the ventilation system
•
Reduction in ventilation system consumption
•
Reduction of noise emitted by the fans on average
•
Motor fault identification and signalling
•
Fan speed regulation
•
Custom configuration of the ventilation system
•
Fan protection for ambient overheating
In relation to the number of fans installed, the TRBH system provides for the possibility of programming the number of
connected bars (B1 - B2) and the number of fans on the single bar using the thermometric control unit.