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1．Product overview

BWDK-3206H series dry type transformer integrated controller is newly designed based on the combination of customer requirements, structural design and performance reliability. It not only has dry-type transformer temperature monitoring function, but also integrates inductive high-voltage live display device, terminal box and other extended functions. It is an integrated innovative product that fully embodies the "customer-centric".

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.

Inductive high voltage charged display device is a new non-contact high-voltage electrification detection device. It do not directly connect with high voltage live body. It can sense the electric field signal and accurately reflect the live condition of the high voltage live body and use microprocessors for signal processing and latching control outputs. It has features such as live no-power display, self-check, and start of forced lockout loops. The product meets the requirements of DL/T 538-2006 standard and is the preferred device used in high-voltage electrical equipment in the house to prevent entering into charged spacing and electrical applicance misoperation.

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 well as carry out relevant functional expansion based on client demands.

3.Type selection (any combination between E, F, G, I and C)

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