FEEDER PROTECTION RELAY BLOCK ADR245B_IP

General Specifications:
1. AC Current Inputs:
1A Nominal
5A Nominal
2. Thermal Withstand Capacity:
250 X In for 1s
50 X In for 3s
4 X In for Continuous duty
3. Dynamic Thermal rating:
1250 for 10ms
4. Burden Rating:
< 0.2VA for 1A Nominal < 0.2VA for 5A Nominal 5. AC Voltage Inputs: 2 X Vn for Continuous duty 2.6 X Vn for 10s Over Voltage Category III Pollution Degree 2 Rated Insulation Voltage: 2.5kV Burden: <0.2VA 6. System Frequency: 50Hz / 60Hz 7. Frequency Tracking: 45 – 55Hz for 50Hz and 55 55 – 65Hz for 60Hz 8. Power Supply: Range: 24 to 230Vac/dc Burden: < 15watts for DC Protection & Control Functions: 1. Four Independent Settings Groups. 2. Directional / Non Directional Phase & Ground Over Current Function (50/51/51N/51/67/67N). 3. Four Independent Stages for Directional/Non Directional Phase Over Current Protection. 4. Three Stages of Directional/Non Directional Ground Over Current Protection. 5. Internally Derived / Externally measured Ground Over Current (3I0>) Protection.
6. Inverse time Over Current Protection (IEC & IEEE curves according to IEC60255).
7. High Impedance Restricted Earth Fault Protection (64R).
8. Thermal Overload Protection (49)
9. Inverse & Definite time Negative Phase Sequence Over Current Protection (46).
10. Broken Conductor Protection (46BC)
11. Negative Phase Sequence Over Voltage Protection (47).
12. Under and Over Voltage Protections (27 /59).
13. Externally measured / Internally calculated Residual Over Voltage Protection (59N).
14. Frequency Protection (81)
15. Rate of change of Frequency (81R) (Optional)
16. Fault Locator (21FL) (Optional)
17. Sync Check (25) (Optional)
18. SOTF (Optional)
19. Multi shots (4-shots) Auto-reclosing function.
20. Breaker Failure detection (50BF)
21. VT and CT supervision function
22. Trip circuit supervision function
23. Programmable Inputs & Outputs
24. CB Close / Trip from HMI
25. Programmable & Target LEDs for indications with dual colours
26. Self Supervision of relay
27. Metering function
28. Disturbance Recording (10 nos.)
29. Event Recording
30. Fault Recording on HMI display (10 nos.)
31. Non-Volatile memory
32. SCADA communication
33. Single / Dual Ethernet ports (RJ45 / FO), RS485 port
34. PC front port communication for convenient relay settings
35. User friendly local operation with key pad
36. Password Protection
38. If Special connector is removed from the back side of the CT Terminal, CT secondary terminal will be automatically shorted.
39. Measurement of Voltage, current magnitude, symmetrical components, Real, Reactive and Apparent Power, Power factor and frequency.

Applications:
ADR245B numerical multifunction relay is designed for Transmission line protection, Underground cable & feeder protection, Machine protection, and shunt capacitor bank protection applications. Relay designed with fast and selective tripping ensures the stability and availability of electrical power system. ADR245B relay can be applied for protection, control & monitoring of radial and ring main feeder to achieve sensitivity and selectivity on phase and ground faults.

This feeder protection relay block is easily insert in your schematic diagram and connect as you like way.

1. Programmable Inputs, Outputs & Logic:
The relay is provided with tool known as Apro Logic, in which user can program his/her logics as per the requirement. such as Motor reacceleration/ Auto Bus Transfer Scheme (ATS) etc. All type of gates such OR/NOR/NOT/NAND/AND/XOR/XNOR/SR Flip-flop are available along with Operating / Resetting Timer. For more details please refer to Instruction Manual The modular version of ADR245B provides max. 62 nos. of programmable inputs and outputs in modular cabinet. Modular version is available in 19” or 14” rack mount size. Cabinet size depends on the ordering information.
2. Programmable LEDs and Pushbuttons:
The ADR245B relay provides total 16 nos. of target and programmable LEDs with dual color indications. The LEDs can be programmed through PC software (RTV2 software). The ADR245B also provides the programmable pushbuttons for circuit breaker close and open from HMI of relay. Pushbuttons can be programmed through HMI or through RTV2 software.
3. Event recording:
ADR245B relay provides a feature to record and store 512 nos. of events (with event time stamping of 1mSec precision) in non-volatile memory through internally by protection and control functions and externally by triggering the digital inputs. And these can be extracted using communication port or can be seen on the LCD. The event can be triggered on time stamp through time synchronization or through internal clock setting.
4. Disturbance recording:
ADR245B relay provides built in disturbance recording facility for recoding analogue and digital channels. Relay records 10 nos. of disturbances and stores it in non-volatile memory. Disturbance records can be saved in IEEE COMTRADE format and same can be analyzed in disturbance analysis software. For saving DR two mode of sampling are available, first is RAW samples (DR of 1.5 seconds) & second is 16 samples (DR of 3 seconds), user can set as required.
5. Fault recording:
ADR245B relay provides fault recording facility. The fault records can be display either on HMI displayed or in RTV2 software. The relay can record 10 nos. of fault records in non-volatile memory.
6. Metering:
Online metering feature of ADR245B relay provides metering of parameters (i.e voltage/current magnitude, power, power factor measurement etc.) on HMI display or in RTV2 software.