M-7651

Feeder Protection System

SmartGrid Ready


M-7651

Feeder protection relays from Beckwith Electric provide sophisticated feeder protection functionality and easy-to-use integrated communications software that protect the distribution systems for worldwide utility, industrial, and power systems.

  • SmartGrid ready platform with sampling rate of 128 sample/cycle provides Advanced Metering and Power Quality; THD (Total Harmonic Distortion), CBEMA Events, Sags and Swells, and Load Profile trending

  • Over 18 Protective Relaying Functions, including Sync-Check with four Step Recloser (User selectable Single and Three-Phase breaker)

 

  • Advanced Recording Capability; 32 Fault Event Reports, 3500 Event Records with Fault Location, Oscillograph Records user configurable for 16, 32, 64 or 128 samples per cycle

 

Number of Samples by Cycle

Number of Cycles to Record

Maximum Number of Waveforms Records

16 3000 10
16 20 200
32 2000 7
32 20 180
64 1000 7
64 20 140
128 500 7
128 20 100
  • Expandable I/O up to 20 programmable inputs, 15 programmable outputs, plus programmable front LED and Function Pushbuttons
  • Local and remote serial communication, protocols include BECO 7000, MODBUS, DNP3.0, Harris 5000, Smart P2P (16 bit Peer to Peer), and optional Ethernet.  61850 (optional)

Metering

Metering  includes:

  • Instantaneous values of the current for three phases, ground or sensitive ground
  • Line and phase voltages
  • DC battery voltage
  • Active, reactive, apparent single and 3 phase power
  • Active energy received and delivered
  • Reactive energy in quadrants I and III
  • Single phase and 3 phase power factor
  • Frequency and phase sequence
  • Thermal and Rolling Demand Metering of:
    • Input Currents and voltages
    • Power factor
    • Active,reactive and apparent power, calculated per phase or 3 phase

  • Sequence current and voltage magnitudes
  • Power system harmonic components, THD, Cf (Crest factor), Df (Distortion factor) of current and voltage for each phase
  • Power Quality (PQ) events: sags, swells, voltage and current imbalances; phase and supply voltage loss; short and long voltage variations, frequency variations and CBEMA curve event detection
  • Reality indices:
    • System Average Interruption Frequency Index (SAIFI)
    • System Average Interruption Duration Index (SAIDI)
    • Momentary Average Interruption Frequency Index (MAIFI)
    • Customer Average Interruption Frequency Index (CAIFI)
    • Customer Average Interruption Duration Index (CAIDI)
    • Average Service Availability Index (ASAI)

  • Equipment temperature
  • Statistical data related to the operation and supervision of the equipment. Metering accuracy 0.5 %.

Load Profile (Trending)
The M-7651 can store in non volatile memory up to 25 user selected parameters (instantaneous, maximum and minimum). These parameters can be selected from the instantaneous values and energy accumulator groups in time intervals between 1 and 60 minutes, with 1 minute steps. 3000 registers can be stored.

IPSCom Menu Wizard
The Menu Wizard allows the user to select which relay features and functions are to be displayed in the IPSCom application software. Features and functions not being used in an application will be masked out from the screen. This feature provides easy and simplified setting and setup of the relay using the IPSCom.

The IPSComS-7651 Software provides simple easy function programming.

 

The S-7651 Configuration Matrix permits easy verification of relay function I/O programming

 

The configurable logic permits easy programming of complex logic, required for special applications.

 

 

Sales and Service