GEYA GRV8-05 Voltage Protection Relay User Manual

1. Bubuka

The GEYA GRV8-05 series is a sophisticated 3-phase voltage monitoring relay designed to protect equipment and personnel from various electrical anomalies. It provides comprehensive protection against overvoltage, undervoltage, phase asymmetry, phase sequence errors, and phase failure, incorporating an adjustable delay time function. This manual provides essential information for the safe and effective installation, operation, and maintenance of your GRV8-05 relay.

2. Émbaran Kasalametan

PERHATOSAN: Bahaya kejutan listrik. Pamasangan sareng ngalayanan ngan ukur kedah dilakukeun ku tanaga anu mumpuni.

• Sok pegatkeun sambungan kakuatan sateuacan masang atanapi ngalayanan alat.
• Pastikeun groundingna bener numutkeun kode listrik lokal.
• Pastikeun sadaya sambungan aman sateuacan nerapkeun kakuatan.
• Entong jalankeun alat upami katingalina ruksak.

3. Varian produk

The GRV8-05 series offers different models based on voltage range and output contact configuration:

• GRV8-05 M460: 10A, 1SPDT output contact. Designed for 3-phase 3-wire systems with Phase-Phase (P-P) voltage range: 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460VAC.
• GRV8-05 M265: 10A, 1SPDT output contact. Designed for 3-phase 4-wire systems with Phase-Neutral (P-N) voltage range: 127V, 132V, 138V, 220V, 230V, 240V, 254V, 265VAC.
• GRV8-05D M460: 8A, 2SPDT output contacts. Designed for 3-phase 3-wire systems with Phase-Phase (P-P) voltage range: 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460VAC.
• GRV8-05D M265: 8A, 2SPDT output contacts. Designed for 3-phase 4-wire systems with Phase-Neutral (P-N) voltage range: 127V, 132V, 138V, 220V, 230V, 240V, 254V, 265VAC.

4. Setup jeung Instalasi

The GRV8-05 relay is designed for 1-MODULE DIN rail mounting.

4.1 Pamasangan

1. Pastikeun catu daya dipegatkeun.
2. Snap the relay onto a standard 35mm DIN rail.

4.2 Kabel

Refer to the specific wiring diagram for your model (3-wire or 4-wire system). Ensure all connections are tight and correct.

4.3 Konfigurasi Awal

The device controls its own supply voltage using True RMS measurement. Set the rated operating voltage using the knob on the front panel. The GRV8-05 allows setting 8-level rated operating voltages.

5. Operasi

The GRV8-05 relay provides protection functions including overvoltage, undervoltage, phase asymmetry, phase sequence, and phase failure, with an adjustable delay time.

5.1 Kontrol Panel hareup jeung Indikator

The front panel typically features:

• Un Knob: To set the rated operating voltage.
• U> Knob: To set the overvoltage threshold (2% to 20% above Un).
• U< Knob: To set the undervoltage threshold (-20% to -2% below Un).
• Asy Knob: To set the phase asymmetry threshold (8%).
• Tt Knob: To set the delay time (0.1s to 10s).
• LED Un (Green): Indicates the status of the supply voltage.
• LED R (Red): Indicates the relay output status.

5.2 Function Diagrams

The relay operates based on the configured parameters. The following diagrams illustrate the behavior of the relay under different fault conditions:

• Phase Failure and Phase Sequence Function: The relay monitors the presence and correct sequence of all three phases. If a phase is lost or the sequence is incorrect, the relay will trip after the set delay time.
• Overvoltage sareng Undervoltage Fungsi: The relay continuously monitors the voltage levels. If the voltage exceeds the upper threshold (U>) or drops below the lower threshold (U<) for the set delay time (To/Tu), the relay will trip.
• Asymmetry Function: The relay monitors the voltage balance between phases. If the asymmetry exceeds the set threshold (Asy) for the set delay time (Ta), the relay will trip.

6. Pangropéa

The GEYA GRV8-05 Voltage Protection Relay is designed for long-term, maintenance-free operation under normal conditions. However, periodic checks are recommended:

• Inspeksi Visual: Regularly inspect the device for any signs of physical damage, discoloration, or loose connections.
• Kakuatan Terminal: Ensure all wiring terminals remain tight to prevent overheating or intermittent operation.
• Kaayaan Lingkungan: Pastikeun yén lingkungan operasi tetep dina kisaran suhu sareng kalembaban anu ditangtukeun.
• beberesih: If necessary, gently clean the exterior of the device with a dry, soft cloth. Do not use solvents or abrasive cleaners.

7. Cara ngungkulan

Upami relay henteu jalan sapertos anu dipiharep, pertimbangkeun hal-hal ieu:

• No Power (LED Un Off): Check the main power supply to the relay. Ensure all phases are present and correctly connected.
• Relay Tripped (LED R Off, or flashing):
  • Overvoltage/Undervoltage: Pariksa garis voltage. Adjust U> or U< settings if necessary.
  • Phase Asymmetry: Pariksa voltage balance across phases. Ensure loads are balanced. Adjust Asy setting if necessary.
  • Phase Sequence/Failure: Verify the phase sequence is correct and all phases are present. Correct any wiring errors.
• Waktu Reureuh Anu Salah: Check the Tt knob setting.
• Operasi intermittent: Pariksa sadaya sambungan kabel naha aya anu kendur atanapi korosi.

If the issue persists after basic troubleshooting, contact qualified technical support.

8. Spésifikasi

9. Garansi jeung Rojongan

GEYA products are manufactured to high-quality standards and are certified to required industry standards, including CE, CB, and RoHS. For specific warranty terms and conditions, please refer to your purchase documentation or contact GEYA customer support. Technical assistance is available through authorized distributors or the manufacturer's official channels.

10. Tips pamaké

• Setélan Optimal: When setting the over/undervoltage and asymmetry thresholds, consider the typical voltage fluctuations in your electrical system to avoid nuisance tripping while ensuring adequate protection.
• Waktu reureuh: Utilize the adjustable delay time (Tt) to prevent immediate tripping during momentary voltage dips or surges, which can be common in some industrial environments.
• Cék biasa: Periodically test the functionality of the relay if your application allows, to ensure it responds correctly to simulated fault conditions.