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Dowei Electric Low Voltage Regulator SBW

Dowei Electric Low Voltage Regulator SBW

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Dowei Electric Low Voltage Regulator SBW

Product catalog summary

General Description:

Voltage Regulation Accuracy: Utilizes RMS true sampling control board with high accuracy adjustable from 1% to 5%.
Adjustment Speed: Fast response time of ≤0.04 seconds using machine tool slider conduction technology.
Protection Features: Includes overvoltage, undervoltage, overcurrent, short circuit, overheating, and phase loss protection.
Output Waveform: No distortion or harmonic output voltage waveform.
Load Capacity: Optional capacity from 1KVA to 3600KVA.
Voltage Range: Standard ±20%, customizable from ±30% to ±50%.
Communication Options: RS485, RS232, GPRS available.
Efficiency: High efficiency with ≥98%.
Optional Features: Harmonic filtering and compensation.
Compliance: Meets IEC 61439, ANSI/IEEE Std C37, ISO 9001, CE, TUV standards.

Typical Specifications:

Capacity Range: Three-phase: 20~3600 kVA, Single-phase: 10-500 kVA.
Input Voltage: Three-phase 380 VAC ±20%; Single-phase 220 VAC ±20%; Customizable ±30% to ±40%.
Output Voltage: Three-phase 380 VAC, single-phase 220 VAC; customizable outputs available.
Frequency: 50Hz / 60Hz.
Efficiency: 98% for power grades above 50 kVA.
Response Speed: ≤0.04 seconds.
Stability Time: ≤1 second for 10% input voltage change.
Insulation Resistance: ≥ 2MΩ.
Dielectric Strength: 2000V for 1 minute without breakdown.
Waveform Distortion: Harmonic content increment ≤1% compared to input.
Communication Functions: Optional RS232, RS485, and GPRS interfaces.
Display Function: LCD displays input/output voltage, current, frequency, temperature, and fault alarms; optional HMI touch screen.

Protection Functions:

Includes delay output, over/under voltage, overload, short circuit, overheating, phase loss, and inverse equal alarm protection.
Automatic recovery of stabilized power supply after fault resolution.

Environmental Specifications:

Working Temperature: -15℃ to +45℃.
Relative Humidity: 10%-90% at 20℃±5℃.
Altitude: <2000m, with derating considerations for higher altitudes.
Protection Grade: IP21, IP45, IP56, etc.
Noise Level: <60dB.

Catalog excerpts

Dowei Electric Low Voltage Regulator SBW-1

Power Transmission & Distribution One stop equipments solution

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Dowei Electric Low Voltage Regulator SBW-2

Low Voltage RegulatorGeneral Description: • Voltage regulation accuracy: RMS true sampling control board, high accuracy adjust from 1 to 5% • Fast adjustment speed: machine tool slider conduction technology, response time <0.04S • Protection: Overvoltage, under voltage, over current, short circuit, over heat, lack of phase • Excellent output waveform: no distortion, no harmonic output voltage waveforml • Largely load capacity: Voltage regulator capacity is optionalfrom 1 KVA to 3600KVA • Wide voltage range: standard ±20%, customized ±30%-±50% range • Communication function optional: RS485, RS232,...

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Dowei Electric Low Voltage Regulator SBW-3

Protection function With delay output, over voltage, under voltage, overload, short circuit, overheat, lack of phase, inverse equal alarm and protection functions, and after fault recovery, can automatically restore the stabilized power supply Working temperature Relative humidity < 2000m, other altitude consider to the derating according to IEC / IEEE Protection grade NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930 | [email protected] | www.dowei-electr

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Dowei Electric Low Voltage Regulator SBW

Dowei Electric Low Voltage Regulator SBW

Catalog excerpts

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