PCS-9611S Fedder Relay [PDF]

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PCS S Series PCS-9611S Feeder Relay

PCS-9611S is a protection, control and monitoring unit for various primary equipments (such as overhead line, underground cable, capacitor and transformer etc.) on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. With its flexibility and the powerful PCS-Studio configuration tool, the PCS-9611S offers future-oriented system solutions with high investment security and low operating costs.

m a l - o p e r a t i o n a ff e c t e d b y i m p u l s e c u r r e n t w h i l e t h e transformer no-load energization. •

Selectable IEC, ANSI inverse-time characteristic curves, also the curve can be defined by users and the inverse-time drop-out curve selection is supported.

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Overvoltage and undervoltage protection support single phase and three phase operation criteria setting, phase voltage and phase-to-phase voltage measurement mode are selectable, which can be for various applications.

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Single-terminal fault location can accurately fix the fault position, the measure error is no more than 5%.

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Complete event recording function is provided: 64 latest protection operation reports, 1024 latest supervision records, 1024 latest control operation records, 1024 latest user operation records and 1024 latest records of time tagged sequence of event (SOE) can be recorded.

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Powerful GOOSE function supports up to 32 reception signals and 8 transmission signals. Simple busbar differential protection can be realized and shorten the cut-off time of busbar fault.

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Supports 6 current inputs and 5 voltage inputs, combined with flexible PLC logic, it is convenient to realize automatic transfer of standby power supply.

Functions Protection and Control •

The overcurrent protection in this relay provides a six-stage phase overcurrent protection with independent time delay characteristics. Each stage can be enabled or disabled independently by the logic settings respectively, and each stage of overcurrent protection can be set as either definite time (DT) or inverse definite minimum time (IDMT). All overcurrent element, directional element, voltage control element and harmonic blocking element settings apply to all three phases but are independent for each stage. Configuring the relevant settings can enable or disable the corresponding function.

Features •

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Fully integrates multi functions into one device and can realize the protection and monitoring function of line, capacitor, motor and transformer etc. Comprehensive functionality includes steady-state distance protection, overcurrent protection, zero-sequence overcurrent protection, REF protection, overvoltage protection, low voltage protection, thermal overload protection, unbalanced current protection, full current protection, etc. The breaker failure, reclosing, measuring, monitoring and control function are supported. The high sampling rate of recording is up to 9.6kHz. The overcurrent protection is combined with harmonic suppression and cold load pickup logic, which can prevent

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Six-stage phase overcurrent protection (50/51P, 67P)

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Zero sequence overcurrent protection (50/51G, 67G) The zero sequence overcurrent protection in this relay provides two groups of zero sequence overcurrent protections with independent time delay characteristics. Each stage can be enabled or disabled independently by the corresponding logic setting respectively. The No.1 group has six stages, and each stage can be controlled with the directional element, harmonic blocking element respectively. And each stage can be set as either definite time (DT) or inverse definite minimum time (IDMT). The No.2 group has six stages of pure zero sequence overcurrent protection without any control element.

www.nrec.com/en The zero sequence current of the No.1 group of zero sequence overcurrent protection can be derived from a dedicated zero sequence current transformer or be self-calculated, and the zero sequence current of the No.2 group of zero sequence overcurrent protection only can be led from another dedicated zero sequence current transformer. •

Sensitive earth fault protection (51SEF, 67SEF) This relay provides a six-stage sensitive earth fault protection with independent time delay characteristics. Each stage can be enabled or disabled independently by the corresponding logic setting respectively, and can be controlled by the directional element respectively. Each stage also can be set with inverse definite minimum time (IDMT) characteristic, and each stage can be configured for tripping or alarming.

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This protection can support all kinds of VT connection: three phase voltage (Ua, Ub, Uc), three phase-to-phase voltages (Uab, Ubc, Uca), two phase-to-phase voltages (Uab, Ubc), anyone of three phase voltages or anyone of three phase-to-phase voltages. This relay can support tw o v o l ta g e i n p u t m o d e s : p h a s e - to - p h a s e v o l ta g e o r phase voltage. And two methods are used to check the undervoltage condition: check all input voltages or check any input voltage. •

This relay provides a two-stage overvoltage protection with definite time delay characteristics. The two stages have same protection logics. Each stage can be used for tripping or alarming, and each stage of overcurrent protection can be set as either definite time (DT) or inverse definite minimum time (IDMT).

Negative sequence overcurrent protection (50/51Q)

This protection can support all kinds of VT connection: three phase voltage (Ua, Ub, Uc), three phase-to-phase voltages

This relay provides a two-stage negative sequence overcurrent protection with independent time delay characteristics. Each stage can be enabled or disabled by scheme logic settings independently. Each stage also can be set with inverse definite minimum time (IDMT) characteristic. •

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(Uab, Ubc, Uca), two phase-to-phase voltages (Uab, Ubc), anyone of three phase voltages or anyone of three phase-to-phase voltages. This relay can support two voltage input modes: phase-to-phase voltage or phase voltage. And two methods are used to check the overvoltage condition: check all input voltages or check any input voltage.

Switch onto fault protection (SOTF) Switch onto fault overcurrent protection and zero sequence accelerated overcurrent protection are equipped in this relay. Acceleration before or after tripping can be configured. Acceleration after tripping includes accelerated tripping for manual switching-onto-fault or automatic reclosing-onto-fault. The current settings and delays of these two accelerated tripping protections can be configured independently.

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Zero sequence overvoltage protection (59G)

Undercurrent protection (37)

On a healthy three-phase power system, the addition of each of the three-phase to earth voltages is nominally zero. However, when an earth fault occurs on the primary system, the balance is upset and a residual voltage is produced. Hence, a zero sequence overvoltage protection can be used to offer earth fault protection on such a system.

This relay provides a one-stage undercurrent protection for monitoring a motor or a capacitor. If the circuit breaker of the protected equipment is closed and the current is less than the predefined setting, the undercurrent protection will operate.

This relay provides a two-stage zero sequence overvoltage protection with definite time (DT) delay or inverse definite minimum time (IDMT) characteristics. The two stages have same protection logics.

Cold load pickup logic (CLP)

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The cold load pickup (CLP) logic which is included within this relay serves to either inhibit the selected protective elements for an appointed duration, or to raise the settings of the selected protective elements. Therefore, it allows the protection settings to be set closer to the load profile by

Undervoltage protection (27P) This relay provides a two-stage undervoltage protection with definite time delay characteristics. The two stages have same protection logics. Each stage can be used for tripping or alarming. If the system voltage is lost, the undervoltage protection is blocked. The circuit breaker state is taken into account in the undervoltage protection logic. When the circuit breaker is opened, the undervoltage protection is not in service.

Negative sequence overvoltage protection (59Q) On a healthy three-phase power system, the negative sequence voltage is nominally zero. However, when an unbalance situation occurs on the primary system, the negative sequence voltage is produced. This relay provides a two-stage negative sequence overvoltage protection with definite time (DT) delay or inverse definite minimum time (IDMT) characteristics. The negative sequence voltage is self-calculated.

automatically increasing them following circuit energization. The CLP logic thus provides stability, whilst maintaining protection during starting. •

Overvoltage protection (59P)

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Unbalance current/voltage protection (60C/V) This relay provides a two-stage unbalance current protection, each stage of unbalance current protection also supports for tripping and alarming. The two stages have the same logics. This relay provides a two-stage unbalance voltage protection, each stage of unbalance voltage protection also supports for tripping and alarming. The two stages have the same logics.

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PCS S Series •

Reverse power protection (32R)

Monitoring and Measurement

The aim of the reverse power protection is to detect the inverse flow of energy and to ensure that the motor does not feed the fault which has appeared on the network.

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CT circuit failure supervision

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VT circuit failure supervision

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System frequency supervision

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Fault phase selection

Under-frequency protection (81U)

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Fault location

The feeder relay includes under-frequency protection to facilitate load shedding and subsequent restoration. It provides a six-stage under-frequency protection with independent definite time delay characteristics in this relay, and the six stages have same protection logics.

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Self diagnostic

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Energy measurement (active and reactive energy measurements for incoming and outgoing)

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Event recorder including 1024 change-of-binary-input events, 1024 supervision events, 1024 control logs and 1024 device logs

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Disturbance recorder including 64 disturbance records with waveforms (The format is compatible with COMTRADE.)

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Clock synchronization using IRIG-B, PPS (Pulse-Per- Second), PPM (Pulse-Per-Minute) , SNTP and IEEE1588

This relay provides a two-stage reverse power protection with definite time delay characteristic. •

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Over-frequency protection (81O) The feeder relay provides a six-stage over-frequency protection with independent definite time delay characteristics, and the six stages have same protection logics.

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Frequency rate-of-change protection (81R) This relay provides a six-stage rate-of-change of frequency protection with independent definite time delay characteristic, and the six stages have same protection logics.

Communication

Automatic reclosing (79)

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Up to four 10Base-T/100Base-TX copper Ethernet ports using IEC 61850, DNP3.0 or IEC 60870-5-103 over TCP/IP

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Up to four 100Base-FX optical Ethernet ports using IEC 61850, DNP3.0 or IEC 60870-5-103 over TCP/IP

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Two RS-485 serial ports using IEC 60870-5-103

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One RS-485 serial port for clock synchronization

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Support GOOSE communication module using IEC 61850-8-1 GOOSE

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Full compatibility between IEC 61850 Editions 1 and 2

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Redundancy protocols PRP and HSR

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One front RJ-45 port for debugging

This relay can support up to 4-shot 3-pole auto-recloser. This relay will initiate the auto-recloser for fault clearance by the predefined protective elements. An auto-reclosing cycle can be internally initiated by operation of a protection element or externally by a separate protection device, provided the circuit breaker is closed until the instant of protection operation. At the end of the dead time of each shot, if all the auto-reclosing conditions are satisfied, a circuit breaker close signal is given. This relay provides three check modes for the automatic reclosing function: synchronism check mode (25), dead check mode and non-check mode. •

Manual closing function This relay supports manual closing function (local or remote closing). The manual closing can be initiated a local input signal (through a binary input or the control panel) or remote closing signal from a supervision and control system (SAS, SCADA). Three check modes described below can be selected for the manual closing function: synchronism check mode (25), dead check mode and non-check mode.

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Front Panel

1

3

1

6

6

2

2 4

4

5

7

7

3

5

1.

Front-panel status indication and control of switches

4.

2.

Easy-to-use keypad aids simple navigation and set-point adjustment

Programmable operator pushbuttons with user-configurable labels

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RJ45 Interface

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Push buttons for open/close, switch for selection between local and remote control, and user's login and logout authority management

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Up to 18 (6U, 1/2)/15 (6U, 1/3) programmable target LEDs with user-configurable labels.

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Target reset

Rear Panel

V

V

VI

VI I

I II

III

IV

II

IV

VII

VII

VIII

VIII

Copper Ethernet port

I.

Current and voltage analog inputs

V.

II.

Binary inputs

VI. Fiber-optic Ethernet port

III. Binary outputs

VII. RS-232 or RS-485 serial port

IV. Power supply and binary I/O

VIII. Debug port

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PCS S Series Installation Dimensions

The device includes two kinds of case sizes

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Case size (mm)

H1

H2

D

D1

W1

W2

6U, 1/3 x 19''

266

253

240

230.5

160.4

147.4

6U, 1/2 x 19''

266

253

240

230.5

221.4

208.4

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Flush Mounting

Case size (mm)

H3

H4

D2

D3

W3

W4

W5

6U, 1/3 x 19''

190.5

258.3

11.5

228.5

171.4

188.4

155.4

6U, 1/2 x 19''

190.5

258.3

11.5

228.5

232.4

249.4

216.4

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PCS S Series Semi-flush Mounting

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Case size (mm)

H3

H4

D4

D5

W3

W4

W5

6U, 1/3 x 19''

190.5

258.3

82

158

171.4

188.4

155.4

6U, 1/2 x 19''

190.5

258.3

82

158

232.4

249.4

216.4

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Surface mounting

Case size (mm)

H5

D6

D7

D8

W6

6U, 1/3 x 19''

255

4~10

230.5—D6

9.5

151.4

6U, 1/2 x 19''

255

4~10

230.5—D6

9.5

212.4

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PCS S Series Side-by-side Rack or Flush Mounting

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Specifications Electrical Specifications AC Current Input Phase rotation

ABC or ACB

Nominal frequency (fn)

50Hz, 60Hz

Rated current (In)

1A/5A (settable)

Linear to

0.05In ~ 40In

Thermal withstand -continuously -for 10s -for 1s -for half a cycle

4In 30In 100In 250In

Burden