1. Introducció
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, minvartage, 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. Informació de seguretat
ADVERTÈNCIA: Perill de descàrrega elèctrica. La instal·lació i el manteniment només els ha de dur a terme personal qualificat.
- Desconnecteu sempre l'alimentació abans d'instal·lar o fer el manteniment del dispositiu.
- Assegureu-vos de connectar a terra correctament d'acord amb els codis elèctrics locals.
- Comproveu que totes les connexions estiguin segures abans d'aplicar energia.
- No feu funcionar el dispositiu si sembla que està danyat.
3. Variants de producte
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. Configuració i instal·lació
The GRV8-05 relay is designed for 1-MODULE DIN rail mounting.
4.1 Muntatge
- Assegureu-vos que la font d'alimentació estigui desconnectada.
- Snap the relay onto a standard 35mm DIN rail.
4.2 Cablejat
Refer to the specific wiring diagram for your model (3-wire or 4-wire system). Ensure all connections are tight and correct.
4.3 Configuració inicial
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. Funcionament
The GRV8-05 relay provides protection functions including overvoltage, minvartage, phase asymmetry, phase sequence, and phase failure, with an adjustable delay time.
5.1 Controls i indicadors del tauler frontal
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 i Undervoltage Funció: 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. Manteniment
The GEYA GRV8-05 Voltage Protection Relay is designed for long-term, maintenance-free operation under normal conditions. However, periodic checks are recommended:
- Inspecció visual: Inspeccioneu regularment el dispositiu per detectar qualsevol signe de danys físics, decoloració o connexions soltes.
- Estanquitat del terminal: Ensure all wiring terminals remain tight to prevent overheating or intermittent operation.
- Condicions ambientals: Verifiqueu que l'entorn operatiu es mantingui dins dels rangs de temperatura i humitat especificats.
- Neteja: If necessary, gently clean the exterior of the device with a dry, soft cloth. Do not use solvents or abrasive cleaners.
7. Solució De Problemes
If the relay is not functioning as expected, consider the following:
- 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: Comproveu la línia voltage. Adjust U> or U< settings if necessary.
- Phase Asymmetry: Consulteu el 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.
- Incorrect Delay Time: Check the Tt knob setting.
- Funcionament intermitent: Inspeccioneu totes les connexions del cablejat per detectar si hi ha fluïdesa o corrosió.
If the issue persists after basic troubleshooting, contact qualified technical support.
8. Especificacions
| Característica | Especificació |
|---|---|
| Nom de marca | GEYA |
| Número de model | GRV8-05 Voltage Relleu |
| Teoria | Voltage relleu |
| Font d'alimentació | AC |
| Voltage (M460) | 220V-460VAC (Phase-Phase) |
| Voltage (M265) | 127V-265VAC (Phase-Neutral) |
| Freqüència nominal | 50/60Hz |
| Output Contact (GRV8-05) | 1SPDT (10A) |
| Output Contact (GRV8-05D) | 2SPDT (8A) |
| Overvoltage Threshold (U>) | 2% to 20% of Un |
| Undervoltage Threshold (U<) | -20% to -2% of Un |
| Asymmetry Threshold (Asy) | 8% |
| Delay Time (Tt) | De 0.1s a 10s |
| Voltage Precisió de la mesura | <1% |
| Muntatge | 1 MÒDULS, carril DIN |
| Dimensions (aprox.) | 18 mm (amplada) x 95 mm (alçada) x 64 mm (profunditat) |
| Funció de protecció | Segellat |
| Certificació | CE, RoHS, CB |
9. Garantia i Suport
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. Consells d'usuari
- Optimal Settings: 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.
- Temps de retard: Utilize the adjustable delay time (Tt) to prevent immediate tripping during momentary voltage dips or surges, which can be common in some industrial environments.
- Comprovacions periòdiques: Periodically test the functionality of the relay if your application allows, to ensure it responds correctly to simulated fault conditions.
