IES-501 Centralized Busbar Protection
IES-501 centralized busbar relay integrates busbar differential protection, bus coupler/section protection (includes overcurrent protection, switch-onto-fault protection, dead zone fault protection and breaker failure protection)and feeder protection(includes overcurrent protection, dead zone fault protection and breaker failure protection).With its modular structure as well as flexible and powerful configuration tool, IES-501 offers future-oriented busbar solutions with high investment security and low operating costs.
The device is freely programmable. Functional logic diagrams can be developed with the use of graphical programming tool which also supports the configuration of binary inputs and outputs, analog inputs, control buttons, LEDs, disturbance recorder, event recorder, and user interface. Freely programmable logic makes it possible to modify typical functional logic diagrams considering a peculiar nature of the protected object. Three basic types of standard 19” case help to choose the most appropriate solution.
IEEE
IEC
Features
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01
Multiple Funtion
Highly integrated with complete functions, including phase-segregated current differential protection, CB failure protection, overcurrent protection, dead-zone protection, etc.
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02
Widely Application
Apply to muitiple single line diagram and up to 4 buses and 24 bays.
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03
Advanced Principle
In case of external fault, the differential protection has excellent anti-saturation feature for CT measurements. When the CT's transition time is not less than 3 ms, it does not malfunction in external fault, and quickly operate in internal fault.
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04
High Realibility
For bus coupler equipped with dual CT, when the bus coupler dead-zone fault occurs during busbar parallel operation, only the bus coupler and the bus at dead-zone side are tripped, while the non-faulty bus will not be tripped by mistake.
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05
Fast Tripping
Adopts an impedance-weighting based adaptive anti-saturation method. It is not affected by the load current, and the action time is less than 15ms.
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06
Easy Maintenance
During busbar maintenance, it can exit the busbar low-ratio differential protection through external input. During bay maintenance, it can exit the maintenance bay through external input.
Technical Specifications
Download
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Standard
IEC 60225-1: 2009
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Dimensions (W×H×D)
455×266.7×233.5mm（6U，without mounting bracket)
221.3x266.7x233.5mm（6U 1/2，without mounting bracket)
160.3x266.7x233.5mm（6U 1/3，without mounting bracket) -
Mounting Way
Flush mounted、semi-flush mounted、wall mounted、panel mounted
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Material
Stainless steel
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Protection Class
Front panel:IP54
Side panel:IP40
Rear panel:IP30 -
Communication Ports
2 or 4 100Base-TX RJ45 Ethernet ports
2 or 4 100Base-FX optical ports
2 RS-485 serial ports for SCADA communication
1 RS-485 serial port for clock synchronization
1 front RJ45 port for debugging -
Communication Protocol
IEC 61850 Editions 1&2&2.1
IEC 60870-5-103
IEC 60870-5-104
DNP3.0
Modbus
IEC 62439 Parallel Redundancy Protocol (PRP)
IEC 62439 High-availability Seamless Redundancy (HSR)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) -
Clock Synchronization
IRIG-B: IRIG-B via serial port
PPS: Pulse per second (PPS) via serial port or binary input
IEEE 1588: Clock message based on IEEE 1588 via Ethernet network
SNTP: Unicast (point-to-point) & broadcast SNTP mode via Ethernet network -
Functions
Busbar differential protection (87B)
BC/BS dead zone fault protection (50DZ)
BC/BS dead zone differential protection (87DZ)
Feeder dead zone fault protection (50DZ)
BC/BS switch-onto-fault (SOTF) protection (50SOTF)
Breaker failure protection (50BF)
Phase overcurrent protection (50/51P)
Earth fault overcurrent protection (50/51G)
Phase overvoltage protection (59P)
Phase undervoltage protection (27P)
Overfrequency protection (81O)
Underfrequency protection (81U)
Frequency rate-of-change protection (81R)
Tel : +021-61610502
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