LD-B30 and medium-sized oil change temperature controller
Product Description
1, the main features
LD-BK30 Series temperature control box is designed for medium and large transformers designed for the safe operation of a control transformer coil winding temperature rise and the oil temperature in the intelligent temperature control device. It needs only to provide a platinum resistance sensor (Pt100) and a transformer current signals, can be way to high-resolution digital display shows oil temperature and the temperature of the phase windings. Its main features are:
▲ simple structure. As the use of power is no longer matches the device and heating components and other complex organizations, BK30 Series temperature control box has a stable and reliable, on-site installation and commissioning set up very conveniently.
▲ convenient deb ing. Just the user to enter two parameters, one transformer at rated load current transformer output current, and second transformer winding temperature at rated load added, the temperature control box can be measured according to the current transformer oil temperature and the coil winding The current simulation calculated temperature rise of coil windings. This design ensures temperature control for a variety of capacities power transformers, and simplify the user's on-site commissioning.
▲ control box according to measured temperature, oil temperature and the coil winding automatic start and stop the cooling fan to ensure the safe operation of the transformer, and has over-temperature alarm, over temperature trip contact output function.
▲ control box has the link can be set to the time lag for the mutation load additional temperature rise of coil inertia simulation process.
▲ control box will be large-screen digital display and intuitive Bar Display combined to facilitate observation.
▲ control box can provide a RS-485 communications capabilities and current transmitter output.
▲ complete control box containing the digital master control room and field box pointer table shows the box, to facilitate two observations.
▲ fully digital calibration method (without potentiometer) to ensure system stability and precision.
Second, model and features
Third, technical indicators
1. Measuring range: 0.0 ~ 150.0 ℃
2. Accuracy: Universal 0.5 Resolution 0.1 ℃
3. Use conditions: ambient temperature -20 ~ 50 ℃ Relative humidity <85%
Power supply voltage 185V ~ 240VAC Frequency 50 ± 2Hz
4. Power consumption: ≤ 8W
5. Sensor parameters: Armoured Pt100 thread M27 * 2 insertion depth 120mm diameter Ф8
6. Anti-jamming performance: The common-mode 220V (AC, 50Hz) or series mode 50mV (AC, 50Hz) interference voltage, the display changes less than the basic error.
7. Digital Compensation range: ± 19.9 ℃
8. Watchdog function
9. Fan start and stop output: relay contact output (contact capacity 5A/250VAC)
10. Relay contact output (contact capacity 5A/250VAC or 10A/24VDC)
11. Overall dimensions (mm)
A body: 175 (W) × 210 (high) × 75 (thickness) fixed size: 135 (W) × 225 (H)
Mosaic form: 190 (W) × 230 (high) × 90 (thickness) Open Size: 170 (W) × 202 (H)
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