P T R 1 3 1

Description

Relay P T R 1 3 1 is designed and built based on IEC 60255 standard.
Two stages in delayed protection ANSI 51 with standard curves
Two stages in instantaneous or constant time Protectionism ANSI 50
One stage delayed Earth fault Protection with standard cures ANSI 51N
One stage delayed fault Protection with standard cures ANSI 51
two stages Instantaneous Earth fault Protection ANSI 50
Sensitive earth fault
Distribution and sub-transmission transformer overload protection ANSI 49
Two stages negative sequence protection ANSI46
Two stages Broken conductor Protection unit
Demand control
Circuit breaker failure unit ANSI 50
Wear condition and number of Circuit breaker operation
Auto reclose ANSI 79
Cold load pickup ANSI51c
Inrush blocking unit
Instantaneous overcurrent (<<<I) or Instantaneous Earth fault error (<<<I0) with under one cycle operation
PCC point protection for Distributed generation
Two stages overvoltage protection 59
Two stages earth fault over-voltage protection 59N
Two stages under-voltage protection 27
Two-stage frequency increase 810
Two stages drop frequency 81U
Four stages ROCOF protection for island detection 81R
Four stages Directional earth fault (67N)
Two stages return Power (32R)
Low and medium Motor protection
Motor overload protection 49M
Motor stall protection 48
Motor start inhibit protection 66
Under current protection 37
Motor temperature control with RTD module
Improved Instantaneous unit Stability Negative sequence and earth fault in CT saturation
Enhanced inrush current detection while CT saturation
Smart and fast setting for protected devices
Enhance transformer thermometer operation for trip and alarm command
Smart Recloser with adaptive operation based on fault current magnitude and fault type
Circuit breaker chamber age estimator and operation mechanism
Choose calculation method of current amplitude with first harmonic and True-RMS
Relay characterization and reset time
Mode bus RTU communication protocol
Connect with a computer program with Ethernet port (TCP/IP)
User-friendly GUI for communicating with relay (setting, configuration, Fault waveform visualization, etc.)
Recording events and faults
Record current waveforms of fault
Solar and Christian calendar
8 programmable digital input
8 RTD input and two 4 to 20 mA input
4 programmable digital output
8 signal LEDs (3 fixed usage – 5 programmable)
Changeable password
Having a metal box with electrostatic dye