NSR3641 automatic switching protection of standby power supply
NSR-3641 series automatic switching device for standby power supply is applicable to the protection, measurement and control of automatic switching of standby power supply or bridge (sectionalized) switch with voltage level below 110kV. Among them, NSR-3641 is applicable to conventional sampling and conventional input/output. The device adopts 1/3U and 6U structures, which can be installed in the control room in a decentralized manner or in a centralized way; NSR-3641D is applicable to conventional and IEC61850-9-2 mixed sampling, as well as conventional and GOOSE input/output. The device adopts 1/3U and 6U structures, which can be installed in the switch cabinet dispersedly or in the control room in the form of centralized panel assembly; NSR-3641D_H is applicable to conventional and IEC61850-9-2 mixed sampling, conventional and GOOSE input/output. The device adopts 1/2U and 6U structures, which can be installed in the switch cabinet dispersedly or in the control room in the form of centralized panel assembly.
NSR3641 automatic switching protection of standby power supply
3 Merging unit function (only applicable to NSR-3641D and NSR-3641D_H)
1. Analog quantity acquisition and resampling function of electromagnetic transformer
2. Electronic analog quantity acquisition and resampling function, supporting FT3 specified in IEC 60044 – 8 and extended FT3 specified in Q/GDW441-2010
3. Multi port transmission function after resampling of acquired analog data supports FT3 specified in IEC 60044 – 8, extended FT3 specified in Q/GDW441-2010, and IEC61850-9-2
1.2.4 Intelligent terminal function (only applicable to NSR-3641D and NSR-3641D_H)
1. Remote signaling: the remote signaling collected by this device can be sent to other intelligent devices through GOOSE communication mode.
2. Exit: can receive protection tripping and closing commands sent by other intelligent devices.
3. Separate operating circuit
1.2.5 Metering function (only applicable to NSR-3641D and NSR-3641D_H)
1. Forward and reverse active, four quadrant reactive electric energy, forward active and reverse active large demand statistics
2. Monthly, daily and instantaneous freezing of electric energy and measured quantity
3. Electric energy and light pulse output
4. Record of loss of voltage, current and phase events
1.2.6 Status monitoring function (only applicable to NSR-3641D and NSR-3641D_H)
The device can monitor the status information such as the internal temperature of the cabinet, the power supply voltage of the device, the received optical power of the process layer optical fiber interface and the pilot interface in real time, and display it through the LCD panel. At the same time, the status information can be sent to the monitoring background.
1. Device temperature monitoring
The device can measure the higher temperature inside the chassis, and the measuring point is the CPU chip.
2. Device power supply voltage monitoring
The device can monitor the internal power supply 5V working voltage status of the device.
3. Monitoring of optical power received by process layer optical fiber interface
The device can monitor the received optical power value of each process layer (SV, GOOSE) optical fiber interface in real time
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