GWPR100-AIP Low-Voltage Anti-Islanding Protection Relay
Product Desc
- The GWPR100-AIP low-voltage anti-islanding protection relay is mainly applied to medium- and small-sized 400 V distributed photovoltaic grid-connected cabinets. It integrates protection, measurement & control, communication and event recording functions. The device can be mounted in switch cabinets in a distributed manner or centrally panel-mounted, and is suitable for anti-islanding and comprehensive protection of low-voltage PV grid-connected systems.
- Equipped with one RS485 port adopting the Modbus-RTU protocol. Communication address, baud rate and parity bit are configurable. It can connect to a supervisory host system to upload measured analogs, binary status, events and protection settings.
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
Protection Functions
- (ANSI 51/50) Over-current Protection (Stage I/II/III)
- (ANSI 51N) Zero-sequence Over-current Protection
- (ANSI 59) Over-voltage Protection (Stage I/II/III)
- (ANSI 27) Under-voltage Protection (Stage I/II/III)
- (ANSI 81O) Over-frequency Protection (Stage I/II/III)
- (ANSI 81U) Under-frequency Protection (Stage I/II/III/IV/V)
- (ANSI 81df/dt) Rate-of-Change-of-Frequency Protection
- (ANSI 32R) Reverse Power Protection
- (ANSI-IN) External Trip Protection
- (ANSI 25-A) Auto-closing upon Voltage Recovery
- (ANSI 25-P) Auto-closing upon Power Recovery
- (ANSI H) Harmonic Detection Protection
Measurement & Control Functions
- Analog Quantity Measurement: Measures primary-side and secondary-side three-phase voltages, three-phase currents, active power, reactive power, power factor and system frequency.
- Energy Metering: Forward active energy, reverse active energy, forward reactive energy and reverse reactive energy. Energy presetting is supported.
- Binary Input Acquisition: 10-channel passive binary inputs for circuit-breaker position status and various external signals.
- Relay Outputs: 4 independent relay outputs including trip output, close output, fault signal output and alarm signal output. Relay output hold-off time is configurable.
Event Recording Functions
- The latest 128 entries of protection events, alarm events, remote-signal events and operation records are cyclically stored. The latest 16 self-check events are cyclically stored. All events are time-stamped with analog quantities captured at the fault instant for post-fault analysis and traceback.
Human-Machine Interface (HMI)
- Six status indicator LEDs: Run, Communication, Trip, Alarm, Circuit-breaker Open Position, Circuit-breaker Closed Position.
- LCD display with Chinese-language menu, featuring a tree-structured key-operated menu. Supports setting query & configuration, event review, local debugging and time setting.
- Supports 8 setting groups with non-volatile storage for operation-mode switching under diverse field conditions.
Hardware & Environmental Characteristics
- Operating temperature: -20 ℃ ~ +60 ℃; maximum relative humidity 90%, non-condensing.
- Universal AC/DC power supply: AC/DC 100 V-264 V.
- High-level electromagnetic compatibility (EMC) performance, meeting stringent requirements for direct installation inside switchgear cubicles.
