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Shenzhen Guodian Xuzhen Electric Technology Co., Ltd.

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TEL:400-698-3738
Shenzhen Guodian Xuzhen Electric Technology Co., Ltd. Address:
龙岗区龙城街道五联瓦窑东路26号安能泰工业园
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Microcomputer intelligent integrated controller (LCD screen)
产品型号： GD920

Gd920 intelligent integrated controller integrates digital, intelligent and network technology, which is used in the automation and monitoring system of hydraulic turbine generator set to realize the automatic start / stop, data measurement, alarm protection and "three remote" functions of...

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Features
The device has the functions of automatic startup and automatic speed regulation, automatic excitation, automatic quasi synchronization, automatic regulation of active power according to water level, automatic regulation of reactive power, eight channel temperature patrol alarm protection, flying protection, current quick break protection, overcurrent inverse time limit protection, undervoltage protection, overvoltage protection, low frequency protection, over frequency protection, circuit breaker switching value protection, automatic shutdown, automatic water level startup, constant water level operation and communication.
◆ one key automatic startup and one key automatic shutdown.
◆ automatically start and shut down according to the water level setting, or automatically start and shut down according to the switch signal.
◆ automatic grid connection operation, and automatically adjust the output power of the unit according to the water level to keep the unit running at high water level.
◆ automatically adjust the power factor.
◆ eight way temperature patrol alarm protection.
◆ overspeed, overcurrent, reverse power, overload, undervoltage, overvoltage, low frequency, over frequency and other protection;
◆ automatic de excitation control, water break control and brake control during shutdown.
◆ active watt hour measurement, reactive watt hour measurement and operation time accumulation.
◆ query the latest 99 fault records.
◆ R485 communication function is convenient for communication with other intelligent devices to realize remote monitoring.
◆ ten inch touch screen man-machine interface configuration can be selected.
technical parameter
◆ working power supply of the device: dc12-24v, 0.2A.
◆ secondary current input range: 0 ~ 5A
◆ voltage detection range: 1.5 ~ 550V
◆ current measurement accuracy: ± 0.5%
◆ voltage measurement accuracy: ± 0.5%
◆ electricity metering accuracy: level 0.2
◆ synchronous voltage range of generator: US ± 10V (system voltage)
◆ synchronous frequency range: 49.7 ~ 50.3hz
◆ synchronous phase angle: ＜ 10 °
◆ current quick break setting range: 5 ~ 50A
◆ current overcurrent setting range: 0.5 ~ 10A
◆ setting range of current overcurrent time: 0 ~ 360s
◆ frequency measurement range: 5 ~ 120Hz
◆ input value of frequency detection residual voltage: 2V
◆ frequency measurement accuracy: ± 0.1% FS
◆ temperature measurement range: - 10 ℃ ~ 200 ℃
◆ temperature measurement accuracy: ± 0.6 ℃
◆ number of input switching value points: 16 (3 programmable)
◆ analog input points: 12 (8 temperature inputs)
◆ number of input points of output switching value: 16
◆ output switching value contact capacity: 220V, 5A
◆ communication interface: RS485
◆ baud rate: 9600
◆ water level detection signal: 4A ~ 20mA
◆ last 99 fault records
◆ insulation withstand voltage strength: in accordance with relevant regulations of dl478-92
◆ anti interference performance: comply with relevant provisions of iec61000
◆ overall dimension:
Overall dimension of host: 300 × two hundred and twelve × 53.5 (long) × wide × High);
A. LCD: shape (width) 300 × (height) 140 × (30mm) deep;
Opening (length) 263 × (height) 122 mm.
◆ power consumption: ≤ 10W
◆ device weight: host < 3kg, panel < 1.5kg.
Case show
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    Automatic power generation control system for hydropower station

  • Automatic power generation control system for hydropower station
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    Automatic power generation control system for hydropower station

  • Automatic power generation control system for hydropower station
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    Automatic power generation control system for hydropower station

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