1.Product overview
Dry-type transformers need to be equipped with dry-type transformer temperature controller and terminal box, customers need to purchase separately, and installed in different locations, the process is slightly cumbersome. BWDK-3206A series of dry-type transformers temperature controller integrated dry-type transformer temperature monitoring, terminal box and other expansion features, so that customers experience better, more convenient installation.
2.Functional features
Temperature monitoring of dry-type transformer: three-phase circuit measurements and display; the maximum display; input open circuit and failure self-inspection display and output; cooling draught fan manual/automatic start-stop display and output; over-temperature alarms, over-temperature trip display and output; displayed value compensation of all channels; "black box"; control for timing start-stop of the draught fan; Temperature simulation. The full series uses the principle of number uniqueness to define input& output terminal functions, in order to facilitate the client drawing design, field wiring and control box change. Communication/simulation current is output from the terminals, no need to the intermediate conversion terminal. For the sensor cable interface, the front-end installation method is adopted to provide easy installation for clients.
Terminal box: Air switches and a certain number of terminals will be added and sufficient space will be reserved for wiring, in order to achieve the functions of the terminal box.
Extended functions: Monitor and control the ambient temperature and humidity as ll as carry out relevant functional expansion based on client demands.
3.Type selection (any combination between E, F, G, I and C)
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BWDK-3206A – X X X /T
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X
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0: Custom
1: DC24
2: AC220V
3: AC380V
5: AC85~265V/DC110~300V
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X
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D: General functions
E: D + 4 ~ 20mA current output
F: D + RS485 communication
G: D + 1 ambient temperature measurement and control
I: D + 1 Temperature measurement and control of iron core
C: D + PTC interlock control over overtemperature alarm (optional) overtemperature trip (optional)
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X
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Number of spare terminals
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X
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Empty: no special function
T: Contain special
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4.Basic technical parameters
Ambient temperature (℃)：-20～55
Relative humidity (%RH)：< 95 (25℃)
Measurement range(℃)：-30.0～240.0
Sensor type：Pt100 (Three-wire)
Power frequency (Hz)：50/60(±2)
Power voltage (V)：AC220 (-15%，+10％)
Power consumption of controller (W)：≤8
Resolution(℃)：0.1
Contact capacity：Fan: 6A 250VAC (cosφ=0.4)
Other: 5A 250VAC/5A 30VDC (resistive)
Accuracy grade：Grade 1 (controller: grade 0.5; sensor: grade B)
Conforming to the relevant standards：JB/T7631-2016，ISO9001:2008，IEC61000-4:2002，GB/T17626-2008
Dimension (mm)： Opening222+1×312+1 Appearance240×345×95
