User Manual: Three-Phase Adjustable Over/Under Voltage Хамгаалагч

1. Танилцуулга

The SINOTIMER STVP series automatic over-voltage ба доод ботьtage protector is designed for three-phase 3*127V/220VAC power systems with a rated working current of 80A. This device provides essential protection for electrical equipment by instantaneously cutting off the power supply when over-voltage, боть доорtage, or over-current conditions are detected. Once the circuit voltage returns to normal, the protector automatically restores power, ensuring continuous operation and safeguarding your appliances from damage.

This protector integrates multiple protection functions including over-voltage, боть доорtage, over-current, three-phase current (voltage) imbalance, phase sequence (reverse phase), zero-break, and phase-break protection. It also features voltmeter and ammeter functions, and the ability to restore factory settings. The device offers comprehensive features, stable performance, and ease of operation.

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2. Үндсэн шинж чанарууд

• Хэт их ботьtage хамгаалалт
• Боть ботьtage хамгаалалт
• Хэт гүйдлийн хамгаалалт
• Автомат сэргээх
• Ботьtage display (separate ABC phase voltage хэмжилт)
• Ampere display (separate ABC phase ampere measurement)
• Гурван фазын ampere unbalance protection
• Phase sequence protection (reverse phase protection)
• Zero line break protection
• Фазын эвдрэлээс хамгаалах
• Fault inquiry function
• Rotation display of voltage and current for each phase
• Adjustable over-voltage protection value and recovery value
• Adjustable under-voltage protection value and recovery value
• Adjustable over-current protection value and action time
• Adjustable 3-phase ampere unbalance protection value and action time
• Adjustable delay time after power-on
• Adjustable fault recovery delay time
• Factory data reset function

3. Бүтээгдэхүүний техникийн үзүүлэлтүүд

4. Аюулгүй байдлын мэдээлэл

• Суурилуулалт, засвар үйлчилгээг зөвхөн мэргэшсэн цахилгаанчин гүйцэтгэнэ.
• Ensure the power supply is disconnected before any installation or wiring work.
• The device does not provide overload or short-circuit protection. It must be used in conjunction with appropriate external circuit breakers (e.g., C45, C65 mini circuit breakers) for comprehensive protection.
• Цахилгаан хангамжийг холбохоос өмнө бүх холболтууд найдвартай, зөв ​​​​байгаа эсэхийг шалгаарай.
• Do not operate the device in wet or hazardous environments.

5. Суурилуулалт

5.1 Физик хэмжээсүүд

5.2 Суурилуулалт

The protector is designed for 35mm DIN rail installation. Snap the device onto the DIN rail securely.

5.3 Холболтын схем

Connect the input and output terminals as shown in the diagram below. Ensure correct phase (L1, L2, L3) and neutral (N) connections. The input terminals are located at the top, and output terminals at the bottom.

6. Тохиргоо ба тохиргоо

Тохиргооны горимд орохын тулд товчлуурыг удаан дарна уу SET button for 3 seconds. Then, continuously press SET to cycle through the parameters. Use the ▲ болон ▼ buttons to adjust the values. When "ENd" appears, press SET again to save the data and exit the setting mode.

If no operation is performed within 10 seconds after pressing SET, the device will automatically exit the setting mode, and any unsaved changes will be lost.

6.1 Parameter Settings Table

6.2 Үйлдвэрийн тохиргоонд дахин оруулах

To reset the device to factory settings, press and hold the ▲ болон ▼ товчлууруудыг 3 секундын турш нэгэн зэрэг дарна.

7. Үйл ажиллагаа

Once installed and configured, the device will continuously monitor the three-phase power supply. The LCD screen will automatically rotate to display the real-time voltage and current for each phase (L1, L2, L3).

Хэт их боть гарсан тохиолдолдtage, боть доорtage, or over-current event, the protector will automatically trip and cut off the power supply to protect connected equipment. After the fault condition clears and the recovery delay time has passed, the device will automatically restore power.

8. Алдаа засах

8.1 Fault Inquiry

If a fault occurs, the device will display an error code (E0). You can press the ▲ button to query the last 5 fault records (E1-E5). The display will indicate:

• ">U" for overvoltage үйл явдал.
• "<U" for undervoltage үйл явдал.

8.2 Phase Sequence Error

If the LCD displays "ABC" character, it indicates a phase sequence error. To correct this, arbitrarily reverse any two of the three phase lines (L1, L2, L3) at the input.

9. Засвар үйлчилгээ

• Төхөөрөмжийг цэвэр, тоос, чийгээс хол байлга.
• Regularly check wiring connections for tightness and signs of wear or damage.
• Do not attempt to repair the device yourself. Refer to qualified personnel for service.

10. Баталгаат хугацаа ба дэмжлэг

For technical support, inquiries, or warranty claims, please contact the distributor: