1. Introduction
This manual provides essential information for the safe and efficient operation of your Kemot PROavr-15k 15000 VA Automatic Three-Phase Voltage Stabilizer. This device is designed to maintain a stable output voltage, protecting connected equipment from fluctuations in the input power supply. Please read this manual thoroughly before installation and use, and retain it for future reference.

Figure 1: The Kemot PROavr-15k stabilizer protecting connected appliances from unstable voltage.
2. Consignes de sécurité
Respectez toujours les consignes de sécurité suivantes afin d'éviter toute blessure ou tout dommage à l'appareil et aux équipements connectés :
- Sécurité électrique : Installation and maintenance should only be performed by qualified personnel. Ensure the main power supply is disconnected before any wiring or service.
- Mise à la terre : The stabilizer must be properly grounded to prevent electric shock.
- Ventilation: Assurez une ventilation adéquate autour de l'appareil. Ne bloquez pas les ouvertures de ventilation.
- Environnement: Do not operate the stabilizer in environments with excessive dust, moisture, or corrosive gases. Avoid direct sunlight and high temperatures.
- Surcharge: Do not exceed the rated power capacity of the stabilizer (15000 VA). Overloading can cause damage and fire hazards.
- Contact avec un liquide : Keep liquids away from the stabilizer. In case of accidental spillage, immediately disconnect power and contact a service professional.
- Composants internes : Do not open the stabilizer casing. There are no user-serviceable parts inside. High voltagils sont présents.

Figure 2: Circuit breakers for power and bypass on the rear panel, indicating safety cut-off points.
3. Produit terminéview
The Kemot PROavr-15k is an automatic three-phase voltage stabilizer designed for industrial and commercial applications requiring stable power. It features a servo motor control for precise voltage regulation and multiple protection mechanisms.
Caractéristiques principales :
- Three-Phase Stabilization: Monitors and controls voltage on each phase independently.
- Haute précision : Maintains output voltage at 400 V with an accuracy of ±3%.
- Servomotor Control: Ensures rapid and accurate voltage correction.
- Protection complète : Includes overload, short circuit, over/under voltage, et protection contre la surchauffe.
- Écran LCD : Permet une surveillance en temps réel du volume d'entrée/sortietage, load, and frequency for each phase.
- Fonction de retard : Adjustable start delay (6 or 180 seconds) to protect equipment with high inrush currents.
- Mobilité: Equipped with four strong wheels for easy transport and positioning.

Figure 3: Front panel with LCD displays and indicators.

Figure 4: Durable wheels for easy transport.
4. Installation
Proper installation is critical for the safe and effective operation of the stabilizer.
4.1 Déballage et placement
- Carefully remove the stabilizer from its packaging. Inspect for any shipping damage.
- Place the unit on a flat, stable surface. Utilize the integrated wheels for easy positioning.
- Ensure there is sufficient clearance (at least 20 cm) around all sides for proper ventilation.
4.2 Connexions électriques
All electrical connections must be performed by a qualified electrician in accordance with local electrical codes.

Figure 5: Rear panel with AC Input and AC Output terminals.
- Connexion d'entrée : Connect the three-phase AC input power supply (L1, L2, L3, Neutral, Ground) to the 'AC INPUT' terminal block on the rear panel. Ensure correct phase sequence and secure connections.
- Connexion de sortie : Connect your three-phase load (L1, L2, L3, Neutral, Ground) to the 'AC OUTPUT' terminal block. Verify that the total load does not exceed 15000 VA.
- Mise à la terre : Ensure a robust ground connection is made to the designated grounding terminal.
- Disjoncteurs: Before connecting power, ensure all 'POWER ON' and 'BYPASS ON' circuit breakers are in the 'OFF' position.

Figure 6: Rear panel highlighting 400V output capability.
5. Mode d'emploi
5.1 Mise sous tension
- After all connections are secure, switch on the main power supply to the stabilizer.
- On the rear panel, switch the 'POWER ON' circuit breakers (A, B, C) to the 'ON' position.
- The LCD displays on the front panel will illuminate, showing input voltage, volume de sortietage, and load for each phase.
- The stabilizer will perform a self-test. Observe the 'WORKING' indicator lights (A, B, C) on the front panel. They should turn green, indicating normal operation.
5.2 Fonction de retard
The stabilizer features a start delay function to protect connected equipment from sudden power surges during startup.
- Locate the 'DELAY / UNDELAY' switch on the front panel.
- In 'DELAY' mode, the stabilizer will wait for either 6 seconds or 180 seconds (depending on internal setting) before providing stable output power. This is recommended for equipment sensitive to inrush currents.
- In 'UNDELAY' mode, the stabilizer provides output power almost immediately. Use this mode only if your connected equipment does not require a startup delay.

Figure 7: LCD displays and Delay/Undelay switch.
5.3 Mode contournement
The bypass function allows the input power to directly feed the load, bypassing the stabilization circuit. This is useful for maintenance or in situations where stabilization is not required.
- To activate bypass mode, first switch off the 'POWER ON' circuit breakers (A, B, C).
- Then, switch the 'BYPASS ON' circuit breakers (A, B, C) to the 'ON' position.
- Ensure the load can handle the raw input voltage before engaging bypass mode.
6. Entretien
Regular maintenance ensures optimal performance and longevity of your stabilizer.
- Nettoyage: Nettoyez régulièrement l'extérieur de l'appareil avec un chiffon doux et sec. N'utilisez pas de nettoyants liquides ni de solvants.
- Ventilation: Ensure ventilation openings are free from dust and obstructions. Use compressed air to clear dust if necessary.
- Relations: Periodically check all electrical connections for tightness. Loose connections can cause overheating and poor performance.
- Inspection: Visually inspect the unit for any signs of damage, wear, or unusual conditions.
- Service professionnel: For any internal issues or complex repairs, contact qualified service personnel.
7. Dépannage
Cette section aborde les problèmes courants que vous pourriez rencontrer. Pour tout problème non mentionné ici, veuillez contacter le support technique.
| Problème | Cause possible | Solution |
|---|---|---|
| Pas de volume de sortietage / Unit does not power on | No input power; Circuit breakers OFF; Internal fault | Check main power supply; Ensure 'POWER ON' breakers are ON; Contact service if fault persists. |
| Volume de sortietage instable | Vol d'entréetage outside stabilization range; Overload; Internal fault | Vérifier le volume d'entréetage range; Reduce load; Contact service. |
| 'PHASE FAILURE' indicator lit | Incorrect phase connection; Missing phase; Phase imbalance | Verify all three phases are correctly connected and present; Contact electrician. |
| Surchauffe / Arrêt de l'appareil | Blocked ventilation; Overload; High ambient temperature | Ensure clear ventilation; Reduce load; Operate within specified temperature range. |
8. Spécifications
Technical specifications for the Kemot PROavr-15k 15000 VA Automatic Three-Phase Voltage Stabilisateur.
| Paramètre | Valeur |
|---|---|
| Puissance nominale | 15000 VA |
| Vol d'entréetaget gamme | 225 - 450 V |
| Volume de sortietage | 400 V |
| Stabilization Precision | ±3% |
| Phases | Three-phase (1 / 3 phases) |
| Efficacité | 98% |
| Stabilization Control | Servomoteur |
| Type de transformateur | CRGO toroïdal |
| Afficher | Écran LCD |
| Fréquence de fonctionnement | 50 / 60 Hz |
| Start Delay Switch | 6 / 180 s |
| Matériau du boîtier | Acier |
| Température de fonctionnement | 0 – 40°C |
| Humidité relative | 10 – 102 % |
| Température de stockage | -15°C – 45°C |
| Protections | Overload, short circuit, high/low voltage, surchauffe |
| Activation du refroidissement | At 30% of rated power |
| Cooling Deactivation | At 20% of rated power |
| Dimensions (L x l x H) | 545 x 230 x 397 mm (21.46 x 9.06 x 15.63 pouces) |
| Poids | 42 kg (92.6 lb) |

Figure 8: Stabilization precision of ±3%.

Figure 9 : Volumetage regulation curve demonstrating AVR functionality.
9. Garantie et assistance
9.1 Informations sur la garantie
This Kemot PROavr-15k voltage stabilizer is covered by a Garantie constructeur d'un an from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, misuse, accidents, unauthorized repairs, or acts of nature.
Veuillez conserver votre preuve d'achat pour les réclamations au titre de la garantie.
9.2 Assistance technique
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact your retailer or the manufacturer, LECHPOL ELECTRONICS LESZEK Spółka komandytowa. Refer to the contact information provided with your purchase documentation.





