Left View of GWPR200-FS Fault Separation Relay

Right View of GWPR200-FS Fault Separation Relay

Terminal Diagram of GWPR200-FS Fault Separation Relay

GWPR200-FS Fault Separation Relay

Functions(ANSI) 59 27 59N 81O 81U 60

Product Desc

The GWPR200-FS Fault Separation Relay is suitable for the load side or small power source side of 33 kV, 22 kV, 11 kV and lower-voltage power systems. When specified grid fault or abnormal operating conditions are detected, the relay rapidly issues a trip command to separate the local power system or small power source from the utility grid, helping prevent the disturbance from further affecting the local system. It is widely used in hydroelectric, thermal, photovoltaic, gas turbine and captive power plants. It can be installed in a panel or locally in a switchgear cabinet. The device employs a high-speed 32-bit microcontroller with an integrated DSP and floating-point unit (FPU), integrating protection, measurement, energy metering, communication, fault recording and time synchronisation functions. It features a large LCD display and a user-friendly operating menu. Each protection and separation function is modular, functionally independent and flexibly configurable.

Communication Functions (listed by hierarchy):
• 2 Ethernet ports (supporting IEC 60870-5-103, optional)
• 1 RS-485 communication port (supporting Modbus RTU)

Time Synchronisation Interfaces: Supports protocol-based time synchronisation, SNTP time synchronisation and IRIG-B time synchronisation.

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+8617621210051

+86-17621210051

Accuracy

≤ 0.2%

Quick Response

≤ 100ms

Reliable Protection

Comprehensive Protection

Quality Assurance

ISO 9001 Certified

Technical Support

24/7 Expert Support

Fast Delivery

Global Shipping

Warranty

2-Year Warranty

1. Product Introduction

The GWPR200-FS is a fault separation relay primarily used on the load side or small power source side of 33 kV, 22 kV, 11 kV and lower-voltage power systems. When specified grid fault or abnormal operating conditions are detected, the relay can rapidly separate the local power system or small power source from the utility grid. The device integrates protection, measurement, energy metering and communication functions. It employs a high-speed 32-bit microcontroller with an integrated DSP and floating-point unit (FPU) to execute protection logic and calculations. The device offers flexible installation and can be installed centrally in a panel or locally in a switchgear cabinet according to site conditions. All output relays use independent channels, and separation trips, trip signals, alarm signals and other dedicated outputs can be individually configured. It also features comprehensive self-supervision and operation recording functions for reliable operation.

2. Product Functions

(ANSI 59) Overvoltage Separation Stage I/II/III (Trip)
(ANSI 27) Undervoltage Separation Stage I/II/III (Trip)
(ANSI 59N) Zero-Sequence Overvoltage Separation Stage I/II (Trip)
(ANSI 81O) Overfrequency Separation Stage I/II/III (Trip)
(ANSI 81U) Underfrequency Separation Stage I/II/III/IV/V (Trip)
(ANSI 60) VT Circuit Failure Alarm
External Intertrip 1/2 (Trip)

Measurement & Control Functions:

Voltage: Ua, Ub, Uc, Uab, Ubc, Uca, 3U0, U0z, Ux
Current: Ia, Ib, Ic
Power: P, Q, cos φ
Frequency: f
Energy: EP+, EP−, EQ+, EQ−
14 binary inputs
8 relay outputs
Sequence of Events (SOE) records

Recording Functions:

Protection events: Records the event time, operating value and operated function; up to 128 records
Alarm events: Records the event time, operating value and alarm function; up to 128 records
Binary input events: Records status changes; up to 128 records
Operation records: Records relay operations, including setting modifications and protection function enable/disable operations; up to 128 records
Self-supervision events: Records events generated by device self-supervision; up to 16 records
Fault recording events: Records waveforms associated with protection/separation operations; up to 32 records

3. Application Scenarios

Voltage Levels: Suitable for fault separation on the load side or small power source side of 33 kV, 22 kV, 11 kV and lower-voltage power systems.
Applications: Widely used in hydroelectric, thermal, photovoltaic, gas turbine and captive power plants.
Installation Methods: Can be installed in a panel or locally in a switchgear cabinet.
Applicable Systems: Suitable for both unearthed neutral systems and earthed neutral systems (configurable through the corresponding protection settings/control words).

Typical Operating Conditions:

Separation of a local power system or small power source from the utility grid when specified grid fault or abnormal operating conditions are detected
Separation during frequency abnormalities (underfrequency/overfrequency)
Separation during voltage abnormalities (undervoltage/overvoltage/zero-sequence overvoltage)
VT circuit failure alarm and blocking of undervoltage separation
External intertrip (trip)

Frequently Asked Questions (FAQ)

Q:What voltage levels and applications is the GWPR200-FS Fault Separation Relay suitable for? Can it be used at 33 kV/22 kV/11 kV? How should a fault separation relay be selected?

A1: It is suitable for fault separation on the load side or small power source side of 33 kV, 22 kV, 11 kV and lower-voltage power systems. It is widely used in hydroelectric, thermal, photovoltaic, gas turbine and captive power plants. It can be installed in a panel or locally in a switchgear cabinet.

Q:What communication protocols does the GWPR200-FS Fault Separation Relay support? How are IEC 60870-5-103 and Modbus RTU interfaces configured?

A2: The standard configuration includes 1 RS-485 communication port supporting Modbus RTU; 2 Ethernet ports supporting IEC 60870-5-103 are optional. Time synchronisation supports protocol-based time synchronisation, SNTP and IRIG-B.

Q:What protection and separation functions does the GWPR200-FS provide? What are the corresponding ANSI codes?

A3: The relay provides Overvoltage Separation Stage I/II/III (ANSI 59), Undervoltage Separation Stage I/II/III (ANSI 27), Zero-Sequence Overvoltage Separation Stage I/II (ANSI 59N), Overfrequency Separation Stage I/II/III (ANSI 81O), Underfrequency Separation Stage I/II/III/IV/V (ANSI 81U), VT Circuit Failure Alarm (ANSI 60), and External Intertrip 1/2. Each function is modular, functionally independent and flexibly configurable.

Q:What are the operating conditions of undervoltage separation? How is the voltage-present condition determined? How is the undervoltage separation setting calculated?

Any one of the three-phase line voltages Uab, Ubc or Uca ≤ the Stage I Undervoltage Separation setting. After all line voltages are greater than or equal to the voltage-present setting and remain so for 500 ms, Stage I Undervoltage Separation is enabled. After Stage I operates, the Stage I enabling condition becomes invalid after a 3 s delay and the Stage I function resets. The undervoltage condition must persist for at least the Stage I operating delay. The operating principles of Stage II/III are the same as Stage I. The operating delay of Stage III is calculated as t = t₂ + K × (U − Uset₂), where K = (t₃ − t₂)/(Uset₃ − Uset₂).

Q:How is VT circuit failure detected? What is the difference between the criteria for unearthed and earthed neutral systems? How does VT circuit failure block undervoltage separation?

For the applicable VT circuit failure criterion, |U0z − 3U0| ≥ 4 V in an unearthed neutral system and |U0z − 3U0| ≥ 8 V in an earthed neutral system. For a three-phase VT circuit failure, when all three busbar line voltages Uab, Ubc and Uca ≤ 0.15Un and Ux ≥ 0.7Un, the relay identifies a three-phase VT circuit failure (Un is the VT rated secondary voltage). The neutral earthing mode can be selected through the corresponding protection setting/control word. When VT circuit failure supervision is enabled, the relay immediately blocks undervoltage separation upon detecting a VT circuit failure. For a V-V-connected VT circuit, this criterion cannot reliably distinguish a VT circuit failure; therefore, VT circuit failure supervision should not be enabled.

Q:What are the operating conditions of overvoltage separation, zero-sequence overvoltage separation, overfrequency separation and underfrequency separation?

Overvoltage separation: any one of Uab, Ubc or Uca ≥ the overvoltage separation setting, with the condition persisting for at least the configured delay. Zero-sequence overvoltage separation: 3U0 ≥ the zero-sequence overvoltage separation setting, with the condition persisting for at least the configured delay. Overfrequency separation: f ≥ the overfrequency separation setting, with the condition persisting for at least the configured delay. Underfrequency separation: f ≤ the underfrequency separation setting, with the condition persisting for at least the configured delay.

Q:How do External Intertrip 1/2 operate? How are the outputs and signal relays configured?

When External Intertrip 1 is enabled and the corresponding binary input is asserted, the relay immediately operates trip outputs 4J (307/308), 5J (309/310) and 6J (311/312), and also operates trip signal relay 7J (313/314). The trip signal relay returns only after manual reset, the corresponding panel trip indication illuminates, and the LCD displays the operated function. External Intertrip 2 operates according to the same principle.

Q:How are the relay trip outputs and signal relays configured? What is the difference between trip and alarm signals?

Separation/protection trip outputs are 4J (307/308), 5J (309/310) and 6J (311/312); the trip signal relay is 7J (313/314); the alarm signal relay is 8J (315/316). The signal relays, corresponding LCD indications and panel indications must be manually reset.

Q:What time synchronisation methods does the GWPR200-FS support?

It supports protocol-based time synchronisation, SNTP time synchronisation and IRIG-B time synchronisation.

Q:What recording functions does the GWPR200-FS provide? How many records can be stored?

Protection events: up to 128 records; alarm events: up to 128 records; binary input events: up to 128 records; operation records: up to 128 records; self-supervision events: up to 16 records; fault recording events: up to 32 records.

Q:What are the auxiliary power supply and rated electrical parameters of the GWPR200-FS?

Auxiliary AC power supply: AC 100–264 V, 50 Hz ±0.5 Hz, harmonic distortion ≤15%; auxiliary DC power supply: DC 100–264 V, ripple factor ≤5%. Rated AC current input: 1 A or 5 A (specified when ordering); rated AC voltage input: 100 V; frequency measurement range: 45–65 Hz.

Q:What are the operating temperature, humidity, EMC and insulation requirements?

Operating temperature: −40°C to +70°C; storage and transport temperature: −40°C to +80°C; relative humidity: 5%–90% without internal condensation. EMC performance meets the requirements of GB/T 14598.26-2015 and other relevant standards. Insulation and mechanical performance meet the applicable relevant standards.

Q:How are settings and control words modified? What is the password?

After modifying parameters, enter password 1000 when exiting the relevant parameter-setting interface to save the changes.

Q:hat is the purpose of the relay power-failure signal output?

The relay provides one normally closed power-failure output (DO board terminals 317/318), which outputs a signal when the relay loses its auxiliary power supply, allowing operating personnel or the station monitoring system to supervise the relay power supply status.

Q:What information should be specified when ordering the GWPR200-FS Fault Separation Relay?

Specify the product model, product name and quantity; rated current input (1 A or 5 A); auxiliary/control power supply voltage (AC/DC 220 V, DC 110 V or customised DC 48 V); binary input voltage (AC/DC 220 V, DC 110 V or dry contact input); delivery address and required delivery date; and any project-specific technical requirements.