GE Agile P50 Series User manual

GE
Grid Solutions
P50 Agile
P153
Technical Manual
Compact Feeder Protection Relay
Hardware version: A
Software version: 01
Publication reference: P153/EN M/B

Conformity
This product complies with the directive of the Council of the European Communities relating to electromagnetic
compatibility (EMC directive 2014/30/EU) and product safety (Low-voltage directive 2014/35/EU). This conformity is the result
of a test conducted in accordance with the product standard EN 60255- 26 for the EMC directive, and with the product
standard EN 60255-27 for the low voltage directive. The IED is designed in accordance with the international standards of the
IEC 60255 series.

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1 Introduction
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INTRODUCTION
CHAPTER 1

1 Introduction
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1 CHAPTER OVERVIEW
This chapter consists of the following sections:
1Chapter Overview
2Introduction
2.1 Features
2.1.1 Protection & Control
2.1.2 Measurement, Recording & Post Fault Analysis
2.1.3 Front Panel Interface
2.1.4 Communications
2.2 Functional Overview
2.3 Ordering Information

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2 INTRODUCTION
2.1 Features
The P153 is a four element (phase A, B, C, N) non-directional overcurrent and earth fault relay with its
functions designed to cover a wide range of applications in the protection of cables and overhead lines
deployed in industrial installations, public distribution networks, and other substations.
The P153 is an economical choice, designed for deployment in volume, in lower voltage systems, in
industrial installations and distribution network substations. P153 can also be applied for direct
refurbishment of substations using older generations of non-communicating overcurrent relays.
The principal protection functions in the relay are timed and instantaneous phase and earth fault
protection, with up to 3 independent stages available. IEC and IEEE curve types are provided for
IDMT functions. Additional versatility is provided thanks to the inclusion of negative sequence
overcurrent, thermal overload, cold load pickup, inrush blocking, broken conductor, breaker fail,
restricted earth fault, undercurrent/loss of load, and trip circuit supervision functions. Multiple setting
groups are included. The hardware capability is broadened by offering minimum ordering options to
permit standardisation in procurement and inventories.
The user may assign any of the logical/physical statuses to binary inputs, binary outputs and
programmable LEDs. This provides flexibility to program the relay as per the application requirements.
All the output contacts are changeover type for ease of implementing the desired wiring schematic.
The P153 offers supervision functions including measurement, monitoring and recording. Industry and
utility protocols such as MODBUS and IEC 60870-5-103 are available for transmitting relay data to a
supervisory control system via communication networks. The intuitive operator interface facilitates
easy reading of measured values and simple configuration of the relay.
2.1.1 Protection & Control
•Timed and instantaneous phase and earth fault protection (3 independent stages)
•Wide range of IEC/IEEE curves
•Thermal overload
•Cold load pickup
•Inrush blocking
•Undercurrent/Loss of load detection
•Negative sequence overcurrent
•Broken conductor
•Circuit breaker Fail
•Trip circuit supervision
•4 Digital inputs
•4 Digital output (2 NO + 2 NC)
•1A/5A CTs selection
•Latching of output contacts
•Two power supply ranges
•2 Setting groups

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•Password protection
•Self-supervision & internal diagnostics
2.1.2 Measurement, Recording & Post Fault Analysis
•Metering of Phase currents
•Metering of Neutral currents-derived and measured
•Measurement of thermal state
•Positive and Negative sequence current
•Ration of negative to positive sequence current
•Breaker operation counter
•Breaker trip counter
•Breaker operating time
•Up to 512 time tagged event records
•Up to 5 Fault records
•Up to 5 disturbance records
2.1.3 Front Panel Interface
•6 LEDs for status indication
•Backlit LCD display (16 x 2)
•6 navigation keys for setting and interrogation
2.1.4 Communications
•Front USB port for real-time data viewing, device setting, and upload/download.
•Rear EIA (RS) 485 port for SCADA communication
•Multiple protocols - Modbus/ IEC60870-5-103
2.2 Functional Overview
ANSI FUNCTION P153
50 Definite time overcurrent •
50N Neutral/Earth definite time overcurrent •
51 IDMT overcurrent •
51N Neutral/Earth IDMT overcurrent •
68 Inrush Blocking •
49 Thermal Overload •
37 Undercurrent detection •
46 Negative sequence overcurrent •
46BC Broken conductor •
50BF Circuit breaker fail •
CLP Cold load pick-up •

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ANSI FUNCTION P153
86 Latching of output contacts (Lockout) •
Control Functions
74 Trip circuit supervision •
Watchdog function •
Self monitoring & diagnostics •
Test/Commissioning facilities •
HMI
Back-Lit LCD display •
6 x Touch Keys
•
6 x status LEDs •
Communication
USB port •
Modbus/IEC 60870-5-103 •
Binary Input/Output
Binary Input
4 (ungrouped)
Binary Output
4 (2NO+2C/O)
Analogue Input
Phase current input 3x1 ph •
Earth current input 1x1 ph •
General
Setting Groups 2
Self diagnostics •
Measurements •
Event records •
Fault records •
Disturbance records •
Configurable BI/BO/LEDs •
Hardware
Auxiliary supply 24-50V DC or 110-230 V AC/DC
Climatic conditions
Operating :
-25oC to +55oC
Storage :
-25oC to +70oC
Housing Front IP 52
Rear IP 20

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2.3 Ordering Information
Variants 1 - 4 5678910 11 12-13 14 15
Model Type
Non Dir. O/C + E/F (4 Element) P153
Auxiliary Voltage Binary Input Threshold Voltage
24 – 50 VDC 18VDC 1
110 – 230 VDC/AC 77VDC /75VAC 3
Current Transformer
Phase / Neutral CT (1A / 5A) 1
Hardware Options
USB front port and RS485 rear port 1
I/O Options
Standard ( 4 logic inputs + 4 relay outputs ) A
Communication Protocol
Modbus / IEC 60870-5-103
1
Case
Non drawout A
Language
English 1
Software Reference
Initial release (v1.xx) 01
Customisation / Regionalisation
Default 0
Customer specific A
Hardware design suffix
Initial release A
Order Number
Figure 1: Ordering information

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P50 Agile P153
2 Safety Information
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SAFETY INFORMATION
CHAPTER 2

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1 HEALTH AND SAFETY
Personnel associated with the equipment must be familiar with the contents of this Safety Information.
When electrical equipment is in operation, dangerous voltages are present in certain parts of the equipment.
Improper use of the equipment and failure to observe warning notices will endanger personnel.
Only qualified personnel may work on or operate the equipment. Qualified personnel are individuals who
are:
•familiar with the installation, commissioning, and operation of the equipment and the system to which
it is being connected.
•familiar with accepted safety engineering practises and are authorised to energise and de-energise
equipment in the correct manner.
•trained in the care and use of safety apparatus in accordance with safety engineering practises
•trained in emergency procedures (first aid).
The documentation provides instructions for installing, commissioning and operating the equipment. It
cannot, however cover all conceivable circumstances. In the event of questions or problems, do not take any
action without proper authorisation. Please contact your local sales office and request the necessary
information.

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2 SYMBOLS
Throughout this manual you will come across the following symbols. You will also see these symbols on
parts of the equipment.
Caution:
Refer to equipment documentation. Failure to do so could result in
damage to the equipment
Warning:
Risk of electric shock
Warning:
Risk of damage to eyesight
Earth terminal. Note: This symbol may also be used for a protective conductor (earth) terminal if that
terminal is part of a terminal block or sub-assembly.
Protective conductor (earth) terminal
Instructions on disposal requirements
Note:
The term 'Earth' used in this manual is the direct equivalent of the North American term 'Ground'.

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3 INSTALLATION, COMMISSIONING AND SERVICING
3.1 LIFTING HAZARDS
Many injuries are caused by:
•Lifting heavy objects
•Lifting things incorrectly
•Pushing or pulling heavy objects
•Using the same muscles repetitively
Plan carefully, identify any possible hazards and determine how best to move the product. Look at other
ways of moving the load to avoid manual handling. Use the correct lifting techniques and Personal Protective
Equipment (PPE) to reduce the risk of injury.
3.2 ELECTRICAL HAZARDS
Caution:
All personnel involved in installing, commissioning, or servicing this
equipment must be familiar with the correct working procedures.
Caution:
Consult the equipment documentation before installing, commissioning, or
servicing the equipment.
Caution:
Always use the equipment as specified. Failure to do so will jeopardise the
protection provided by the equipment.
Warning:
Removal of equipment panels or covers may expose hazardous live parts.
Do not touch until the electrical power is removed. Take care when there is
unlocked access to the rear of the equipment.
Warning:
Isolate the equipment before working on the terminal strips.
Warning:
Use a suitable protective barrier for areas with restricted space, where there
is a risk of electric shock due to exposed terminals.

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Caution:
Disconnect power before disassembling. Disassembly of the equipment
may expose sensitive electronic circuitry. Take suitable precautions
against electrostatic voltage discharge (ESD) to avoid damage to the
equipment.
Warning:
NEVER look into optical fibres or optical output connections. Always use
optical power meters to determine operation or signal level.
Warning:
Testing may leave capacitors charged to dangerous voltage levels.
Discharge capacitors by reducing test voltages to zero before
disconnecting test leads.
Caution:
Operate the equipment within the specified electrical and environmental
limits.
Caution:
Before cleaning the equipment, ensure that no connections are energised.
Use a lint free cloth dampened with clean water.
Note:
Contact fingers of test plugs are normally protected by petroleum jelly, which should not be removed.
3.3 FUSING REQUIREMENTS
Caution:
Digital input circuits should be protected by a high rupture capacity NIT or
TIA fuse with maximum rating of 16 A. for safety reasons, current
transformer circuits must never be fused. Other circuits should be
appropriately fused to protect the wire used.
Warning::
CTs must NOT be fused since open circuiting them may produce lethal
hazardous voltages

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3.4 EQUIPMENT CONNECTIONS
Warning:
Terminals exposed during installation, commissioning and maintenance
may present a hazardous voltage unless the equipment is electrically
isolated.
Caution:
Tighten M4 clamping screws of heavy duty terminal block connectors to a
nominal torque of 1.3 Nm.
Tighten captive screws of terminal blocks to 0.5 Nm minimum and 0.6 Nm
maximum.
Caution:
Always use insulated crimp terminations for voltage and current
connections.
Caution:
Always use the correct crimp terminal and tool according to the wire size.
Caution:
Watchdog (self-monitoring) contacts are provided to indicate the health of
the device on some products. We strongly recommend that you hard wire
these contacts into the substation's automation system, for alarm
purposes.
3.5 PROTECTION CLASS 1 EQUIPMENT REQUIREMENTS
Warning:
Earth the equipment with the supplied PCT (Protective Conductor Terminal).
Warning:
Do not remove the PCT.

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Warning:
The PCT is sometimes used to terminate cable screens. Always check the
PCT’s integrity after adding or removing such earth connections.
Warning:
Use a locknut or similar mechanism to ensure the integrity of
stud-connected PCTs.
Caution:
The recommended minimum PCT wire size is 2.5 mm² for countries whose
mains supply is 230 V (e.g. Europe) and 3.3 mm² for countries whose mains
supply is 110 V (e.g. North America). This may be superseded by local or
country wiring regulations.
For P60 products, the recommended minimum PCT wire size is 6 mm². See
product documentation for details.
Caution:
The PCT connection must have low-inductance and be as short as possible.
Caution:
All connections to the equipment must have a defined potential.
Connections that are pre-wired, but not used, should be earthed, or
connected to a common grouped potential.
3.6 PRE-ENERGISATION CHECKLIST
Caution:
Check voltage rating/polarity (rating label/equipment documentation).
Caution:
Check CT circuit rating (rating label) and integrity of connections.
Caution:
Check protective fuse or miniature circuit breaker (MCB) rating.

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Caution:
Check integrity of the PCT connection.
Caution:
Check voltage and current rating of external wiring, ensuring it is
appropriate for the application.
3.7 PERIPHERAL CIRCUITRY
Warning:
Do not open the secondary circuit of a live CT since the high voltage
produced may be lethal to personnel and could damage insulation. Short
the secondary of the line CT before opening any connections to it.
Note:
For most General Electric equipment with ring-terminal connections, the threaded terminal block for current transformer
termination is automatically shorted if the module is removed. Therefore external shorting of the CTs may not be
required. Check the equipment documentation and wiring diagrams first to see if this applies.
Caution:
Where external components such as resistors or voltage dependent
resistors (VDRs) are used, these may present a risk of electric shock or
burns if touched.
Warning:
Take extreme care when using external test blocks and test plugs such as
the MMLG, MMLB and P990, as hazardous voltages may be exposed.
Ensure that CT shorting links are in place before removing test plugs, to
avoid potentially lethal voltages.

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Warning:
Data communication cables with accessible screens and/or screen
conductors, (including optical fibre cables with metallic elements), may
create an electric shock hazard in a sub-station environment if both ends of
the cable screen are not connected to the same equipotential bonded
earthing system.
To reduce the risk of electric shock due to transferred potential hazards:
i. The installation shall include all necessary protection measures to ensure
that no fault currents can flow in the connected cable screen conductor.
ii. The connected cable shall have its screen conductor connected to the
protective conductor terminal (PCT) of the connected equipment at both
ends. This connection may be inherent in the connectors provided on the
equipment but, if there is any doubt, this must be confirmed by a continuity
test.
iii. The protective conductor terminal (PCT) of each piece of connected
equipment shall be connected directly to the same equipotential bonded
earthing system.
iv. If, for any reason, both ends of the cable screen are not connected to the
same equipotential bonded earth system, precautions must be taken to
ensure that such screen connections are made safe before work is done to,
or in proximity to, any such cables.
v. No equipment shall be connected to any download or maintenance
circuits or connectors of this product except temporarily and for
maintenance purposes only.
vi. Equipment temporarily connected to this product for maintenance
purposes shall be protectively earthed (if the temporary equipment is
required to be protectively earthed), directly to the same equipotential
bonded earthing system as the product.
3.8 UPGRADING/SERVICING
Warning:
Do not insert or withdraw modules, PCBs or expansion boards from the
equipment while energised, as this may result in damage to the equipment.
Hazardous live voltages would also be exposed, endangering personnel.
Caution:
Internal modules and assemblies can be heavy and may have sharp edges.
Take care when inserting or removing modules into or out of the IED.

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4 DECOMMISSIONING AND DISPOSAL
Caution:
Before decommissioning, completely isolate the equipment power supplies
(both poles of any dc supply). The auxiliary supply input may have
capacitors in parallel, which may still be charged. To avoid electric shock,
discharge the capacitors using the external terminals before
decommissioning.
Caution:
Avoid incineration or disposal to water courses. Dispose of the equipment
in a safe, responsible and environmentally friendly manner, and if
applicable, in accordance with country-specific regulations.