Download Sepam series 80 sales promotion package

Sepam series 80 specification form
Since the Protection and Control unit is installed in the
switchgear, it must meet the severest environmental withstand
requirements as IEC standards:
General considerations
60255-5 impulse withstand: 5 kV
60255-22-1 1Mhz wave: Class III
60255-22-4 fast transients: Class IV
61000-4-3 electromagnetic radiation: Class III
 60529 degree of protection: IP 52 on front panel
 60255-21-1,2,3 vibration, shocks, earthquakes
 The Protection and Control Unit shall have UL 508 approval
and CE mark
The design and manufacturing process shall be ISO 9001
certified.
The manufacturing facilities shall comply with ISO14001
The operating temperature shall be between -25°C and + 70° C.
The Protection and Control unit range shall be designed to
accommodate all types of DC control power supply voltages:
24, 48, 127 & 250 Vdc
Product shall comply with IP52 front panel and IP20 in LV
compartment
Product shall also comply with NEMA Type 12 front panel
Operating dependability
The Protection and Control unit shall include:
an internal function self-monitoring mechanism, which
activates one fail-safe watchdog changeover contacts
an automatic device for switching to the fail-safe
position, disabling output controls when a major internal failure
is detected
indication of self test status of the device by LED and text.
Installation
The Protection and Control unit should be compact and easy to
install:
reduced depth (closed to 210 mm)
Optionability and expandability
It shall be possible to add further options to the relay
Options shall be prewired in an easy to install and configure way
The Protection and Control Unit shall contain all the necessary
protections for the specific application:
Protection functions

Sepam series 80 specification form
REV
D
For any applications:
 60/60FL CT/VT Supervision
 74 Trip circuit supervision
 86 Latching / acknowledgement
Protection and Control unit
Page 1/8
Sepam series 80 specification form
 Incomer / Feeder protection:




















25 Synchro-check
27 Undervoltage (phase-to-phase or phase-to-neutral)
27D Positive sequence undervoltage
27R remanent undervoltage
32P Reverse real power
37P Directional active underpower
46 Unbalance / negative sequence
47 Negative sequence overvoltage
49 RMS thermal overload
50/51 Phase overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
67 Directional overcurrent
67N/67NC Directional earth fault
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
81L Underfrequency
81H Overfrequency
81R Rate of change of frequency (ROCOF)
79 Recloser (4 cycles)
 Transformer protection






















24 Volt / Hertz
25 Synchro-check
26/63 Thermostat / Buchholz
27 Undervoltage (phase-to-phase or phase-to-neutral)
27D Positive sequence undervoltage
27R remanent undervoltage
32P Reverse real power
38/49T temp set point
46 Unbalance / negative sequence
47 Negative sequence overvoltage
49 RMS thermal overload
50/51 Phase overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
64 REF restricted earth fault
67 Directional overcurrent
67N/67NC Directional earth fault
81H Overfrequency
81L Underfrequency
87T 2 windings current differential
 Motor protection








Sepam series 80 specification form
REV
D
12/14 Over/Under Speed
27 Undervoltage (phase-to-phase or phase-to-neutral)
27D Positive sequence undervoltage
27R remanent undervoltage
32P Reverse real power
32Q reactive overpower
37 Phase undercurrent
40 Field Loss (underimpedance)
Protection and Control unit
Page 2/8
Sepam series 80 specification form

















46 Unbalance / negative sequence
47 Negative sequence overvoltage
38/49T Temperature monitoring
49 RMS Thermal overload
48/51LR Excessive starting time, locked rotor
50/51 Phase overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
66 Starts per hour
67N/67NC Directional earth fault
78 Pole Slip
81H Overfrequency
81L Underfrequency
87M Current differential
26/63 Thermostat / Buchholz
 Generator protection































12/ 14 Over/under speed
21B Back underimpedance
24 V/Hz
25 Synchrocheck
27D Positive sequence undervoltage
27R remanent undervoltage
27 Undervoltage (phase-to-phase or phase-to-neutral)
32P Reverse real power
32Q Reactive overpower
37P Directional active underpower
40 Field Loss (underimpedance)
46 Unbalance / negative sequence
47 Negative sequence overvoltage
38/49T Temperature monitoring
49 RMS Thermal overload
50/27 Inadvertent energization
50/51 Phase overcurrent
50V/51V Voltage restrained overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
64G /27TN 100% stator earth fault
64 REF restricted earth fault
67 Directional overcurrent
67N/67NC Directional earth fault
78 Pole Slip
81H Overfrequency
81L Underfrequency
87M Current differential
26/63 Thermostat / Buchholz
 Busbar protections:


Sepam series 80 specification form
REV
D
25 Synchro-check
27 Undervoltage (phase-to-phase or phase-to-neutral)
Protection and Control unit
Page 3/8
Sepam series 80 specification form












27D Positive sequence undervoltage
27R remanent undervoltage
46 Unbalance / negative sequence
47 Negative sequence overvoltage
50/51 Phase overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
81L Underfrequency
81H Overfrequency
Capacitor bank protections:















27 Undervoltage (phase-to-phase or phase-to-neutral)
27D Positive sequence undervoltage
27R remanent undervoltage
38/49T Temperature monitoring
46 Unbalance / negative sequence
47 Negative sequence overvoltage
49 RMS thermal overload for capacitors
50/51 Phase overcurrent
50N/51N Earth fault (or neutral)
50BF Breaker failure
51C Capacitor bank unbalance
59 Overvoltage (phase-to-phase or phase-to-neutral)
59N Neutral voltage displacement
81L Underfrequency
81H Overfrequency
Each protection device shall have wide setting ranges, in
particular for current protections, providing a choice of curve
types between definite time curve (DT), with time delay settings
from instantaneous to 300 s, and IDMT curves (SIT, VIT, LTI,
EIT, UIT, RI, IEC SIT / A, IEC VIT or LTI / B, IEC EIT / C, IEEE
moderately inverse, IEEE very inverse, IEEE extremely inverse,
IAC inverse, IAC very inverse, IAC extremely inverse) adjustable
either by time delay or TMS factor.
Protection device (for phase overcurrent, Earth fault and
Directionnal protections) shall give the possibility to create a
customized tripping curve
Large settings range for protection functions:
ANSI 50/51
Is set point
ANSI 50N/51N
Is0 set point
Tripping time delay
Timer hold
0,05 to 24 In
0,05 to 2,4 In
DT
IDMT
Inst.: 0,05s to 300s
0,1s to 12,5s at 10 Is
0,01 to 15 In0 (min 0,1 A)
0,01 to 1 In0 (min 0,1 A)
DT
IDMT
Inst.: 0,05s to 300s
0,1s to 12,5s at 10 Is0
The detection of the earth fault current shall be ensured from
0,1A primary current
Sepam series 80 specification form
REV
D
Protection and Control unit
Page 4/8
Sepam series 80 specification form
Phase overcurrent and earth fault protection shall have an
adjustable timer hold to allow restriking faults detection and
induction disk relay compatibility.
Earth fault protection shall integrate a harmonic 2 restraint,
which can be inhibited or activated.
Alternative overcurrent setting groups will be selectable by
logical conditions to adapt fast protection plan change as well as
remote setting facilities for thresholds and time delay
adjustments.
The unit shall allow for the use of upstream and downstream
logic discrimination in order to discriminate correctly when used
in a cascade scheme or closed loop applications.
Overload protection will be based on RMS current value
(minimum 13th harmonic) and will take into account the
ambient temperature.
Alternative overload setting groups will be selectable by logical
conditions to adapt operating mode change.
Adjustment of the overload tripping curves will be possible to
exactly fit the motor characteristics.
Setting shall be performed by the direct input of actual current
Values.
Protection tripping shall be indicated on the front of the device
by a LED and text indicating the cause of the fault.
The protection and control unit shall include voltage transformer
and current transformer circuit supervision (ANSI 74)
Each Protection and Control unit shall include the
Measurements needed for operation and commissioning, i.e. at
least the following:
Metering functions
RMS 3-phase current measurement
residual current measurement
phase current demand and maximum demand
measurement of fault current broken in each phase
 Measurement of voltage, frequency, power and energy. For
power and energy data, the unit shall measure real and
reactive values and takes into consideration the direction
energy flow. In addition, the protection and control unit shall
include 4 logic inputs allowing energy measurement by
means of impulses coming from an external meter.
additional measurements such as unbalance ratio, thermal
capacity used, ...
Sepam series 80 specification form
REV
D
Protection and Control unit
Page 5/8
Sepam series 80 specification form
Product shall provide a display of the phasor diagram (by
software or on the UMI)
The unit shall provide one of the measurement on an analog
output.
The Protection and Control unit shall include a back lit display
unit that indicates:
measurement values
operating messages (choice of language English or local)
device maintenance messages
Operator Interface
(front panel)
The display unit shall have as a minimum 3 lines for clear
annunciation of alarm conditions.
8 Signals LEDs will be available for alarms and status, including:
breaker position (opened/closed), relay self test, phase fault and
earth fault alarms. It shall be possible to customize the
assignment of the signal LEDs.
The display indication shall be in 2 languages
 Local for operations
 English for maintenance as a back up of local
The Protection and Control unit shall include a keypad to allow
to perform the following operations:
 display of metering and operating data, alarm messages
 clearing of alarms and resetting, acknowledgement
It shall be possible to remote the MMI to allow installation of the
Protection and Control unit in a different place than the MMI for
the most advantageous location for operation & monitoring.
For some applications, the possibility to view devices status on
an animated diagram and to control locally the closing and the
opening of the devices shall be possible
The Protection and Control unit shall include the logic inputs
and outputs resources required for control of the breaking
devices (circuit-breaker or contactor) and for interfacing with the
monitoring or logic process.
Control and monitoring
The unit shall have at least 5 relay outputs, with extension
capacity to a minimum of 42 opto-isolated logic inputs and 23
relay outputs
Extension of 3 modules of Inputs/outputs increases the number
of logic inputs and outputs, allowing :
 CB open and close control, whatever the type of shunt trip or
undervoltage release coil control
 ANSI 69 / Inhibit closing
 Remote tripping
Sepam series 80 specification form
REV
D
Protection and Control unit
Page 6/8
Sepam series 80 specification form
 Adaptation of predefined control and monitoring functions, or
programming specific control and monitoring functions
 storage of information (even during control power supply
outages).
 As an option, monitoring of the circuit breaker for
maintenance statistics purpose: operating time, charging
time, trip circuit supervision (covering power supply, wiring
and coil) cumulative total of tripping currents for 5 current
ranges, operation counter, pressure (for SF6 circuit
breakers)
 For motors, transformers, and generators, 8 to 16
temperature sensors inputs shall be available
Disturbance recording:
The relay shall be able to record one set of 500 cycles (at 50 Hz
or 60 Hz) at 12 points per cycle.
For other arrangements it shall be possible to adjust the
followings :


Trigger from 0 to 99 cycles before event
Sampling rate at 12 or 36 pts per cycle
The content of the record will be as a minimum




4 current channels
4 voltage channels

The event format shall be COMTRADE 97
logical states recorded
Date and time
In case of external and/or internal auxiliary supply failure,
alarms, event logs and oscillography data shall be recorded and
stored (battery, condensator….)
The unit shall provide time-tagging of minimum 200 events
within an accuracy of 1ms.
The Protection and Control unit will be supplied with 2
Communication ports providing RS 485 type, up to
38 400 baud speed, Modbus Protocol.
Fiber Optic shall be an option.
Relay vendor solutions will allow to connect to ethernet gateway.
The response time for a control order will be less than 15 ms.
(time from order sent to the unit up to order acknowledgement)
Communication
The Protection and Control unit will communicate the metering
data, enable the remote readings of the protection settings, the
remote setting of protection and the transfer of the disturbance
recorded data.
Sepam series 80 specification form
REV
D
Protection and Control unit
Page 7/8
Sepam series 80 specification form
Remote control orders shall be carried out in 2 modes :
 Direct mode
 "SBO" (select before operate) mode
Products shall be synchronized by an external pulse at logic
input or via the communication link
Appropriate software (using standard Windows NT or XP
operating system) will allow to collect:
 all metering and operating data, alarm messages
 breaker diagnostics data (cumulative tripping current,
operating counter…)
 protection and parameter settings, logic status of inputs,
outputs and signal LEDs. (download to/from the relay). At
least 2 level passwords shall protect from nuisance action.
Software
 Disturbance recording: single or multi curve display, 2
pointers for differential measurement, zooming, printing.
A RS232 connection port shall be available in the front of
the relay, and shall be used for point to point PC based local
communication using the appropriate software supplied by the
relay vendor
Software shall be connected to a set of relays, themselves
connected to a communication network via Ethernet connection,
RS485 serial connection or telephone-line connection
Predefined control and monitoring functions shall be adapted by
using a boolean editor including timers, counters
Control Logic
For some needs (complex applications like specific automatic
transfer functions, motor starting sequences….), a ladderlanguage programming software shall be used to program
specific control and monitoring functions
Upgradability and servicing
Sepam series 80 specification form
REV
D
It shall be possible to upgrade internal firmware after delivery
from the vendor.
It should be possible to withdraw the unit without prior current
circuit short-circuiting.
In case of product servicing, it will be possible to transfer
customer applications and event log on the new product without
any additional downloading.
Protection and Control unit
Page 8/8