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April 2026 is not just another milestone—it marks the moment when industrial instrumentation shifts from experimentation to execution.For years, the...
الصفحة الرئيسية » المنتجات » التحكم في مراقبة الطاقة » جهاز إرسال الجهد ثلاثي الأطوار مع RS485 مودبوس RS485

Instrava Curated Instruments — Precision Three Phase Voltage Measurement You Can Depend On
At Instrava, we go beyond simply supplying instruments. Through our Curated Instruments approach, each three phase voltage transmitter is carefully selected from trusted manufacturers—ensuring accuracy, durability, and consistent performance in complex electrical systems.
هذا three phase voltage transmitter with RS485 Modbus communication is designed for precise measurement and isolated signal transmission, providing reliable data for industrial automation, energy monitoring, and smart power systems.
مع Optimized Solutions philosophy, we help customers implement measurement technologies that improve efficiency, enhance system visibility, and support long-term operational stability.
Power Monitoring & Control Description
High-Precision Three Phase Voltage Transmitter for Power Systems
Engineered for industrial-grade performance, this three phase AC voltage transmitter measures multi-phase voltage signals and converts them into standard analog outputs (4–20mA / 0–10V) or digital signals via RS485 Modbus RTU.


Engineered for Harsh Environments & Smart Monitoring Networks
هذا RS485 Modbus three phase voltage transmitter is built to deliver stable performance under demanding industrial conditions while supporting digital transformation.
Power Monitoring & Control Parameter
| المعلمة | المواصفات |
|---|---|
| الدقة | ± 0.5% |
| وقت الاستجابة | ≤400ms |
| Input Voltage | 100V / 220V / 380V (Three Phase) |
| التردد | 45–65Hz |
| Overload Capacity | Continuous 1.2Un, Instantaneous 2Un/1min |
| استهلاك الطاقة | ≤5VA |
| مزود الطاقة | AC/DC 80–270V, DC 19–50V |
| Absorption Power | ≤0.5VA per phase |
| إشارة الإخراج | 4–20mA / 0–5V / 0–10V / 0–20mA |
| Output Load | Current ≤510Ω, Voltage ≥20kΩ |
| Output Ripple | ≤2× basic error |
| التواصل | RS485, Modbus RTU, 2-wire, up to 9600bps |
| درجة حرارة التشغيل | -40°C to 70°C |
| درجة حرارة التخزين | -40°C to 85°C |
| الرطوبة | ≤93%RH |
| Insulation | ≥2kVAC |
| التركيب | Panel / DIN Rail |
| الارتفاع | ≤2500m |
إنسترافا OEM/ODM
أدوات موثوقة. حلول تناسب تطبيقك.
تركز إنسترافا على تقديم حلول صناعية موثوقة من خلال المنتجات المنتقاة بعناية والتحسين القائم على التطبيقات والتخصيص المرن. نختار الأدوات التي أثبتت كفاءتها من الشركات المصنعة الموثوق بها لضمان جودة متسقة، ونعمل على تحسين الحلول بناءً على ظروف العمل الحقيقية لحل التحديات العملية، ونوفر تكوينات مصممة خصيصًا لتلبية احتياجات التطبيقات المحددة.
تساعد Instrava العملاء على تقليل المخاطر وتحسين الكفاءة وتحقيق نتائج يمكن الاعتماد عليها في البيئات الصناعية المعقدة من خلال الجمع بين الخبرة في الاختيار وفهم التطبيقات.

What is a three phase voltage transmitter and how does it work?
A three phase voltage transmitter is a device that measures the voltage of a three-phase electrical system and converts it into standardized output signals such as 4–20mA, 0–10V, or digital communication signals.
It continuously monitors all three phases (L1, L2, L3) and provides real-time data for control systems, enabling accurate voltage tracking and system protection.
Why is a three phase voltage transmitter important in power monitoring systems?
Three phase systems are widely used in industrial and data center environments due to their efficiency and stability. A voltage transmitter ensures continuous monitoring of voltage levels across all phases, helping detect imbalances, overvoltage, or undervoltage conditions.
This improves system reliability, protects equipment, and supports stable operation.
What are the typical output signals of a three phase voltage transmitter?
Three phase voltage transmitters typically provide:
Analog outputs are commonly used for PLC/DCS systems, while digital outputs enable integration with SCADA, BMS, or DCIM platforms.
Where are three phase voltage transmitters used?
تُستخدم على نطاق واسع في:
In these applications, they provide critical voltage data for monitoring, control, and optimization.
How does a three phase voltage transmitter improve system reliability?
By continuously monitoring voltage across all three phases, the transmitter can detect abnormalities such as phase imbalance, voltage dips, or surges.
This allows operators to take corrective actions before equipment is affected, reducing the risk of downtime and extending the lifespan of electrical assets.
What is the difference between a three phase voltage transmitter and a voltage meter?
A voltage meter typically displays voltage values locally and is used for basic measurement.
A three phase voltage transmitter, however, converts voltage data into standardized signals that can be transmitted to control and monitoring systems.
This makes transmitters more suitable for automated systems, remote monitoring, and data-driven environments such as AI data centers.
April 2026 is not just another milestone—it marks the moment when industrial instrumentation shifts from experimentation to execution.For years, the...
مبني على الاتساق وليس على الادعاءات
نحن متخصصون في التحليل والكشف الصناعي، مع فهم واضح لبيئات ومتطلبات التشغيل في العالم الحقيقي.
يتم تقييم كل أداة على أساس الأداء والثبات وملاءمة التطبيق - وليس فقط المواصفات أو الأسعار.
نحن نعمل مع مصنعين موثوق بهم لضمان استقرار الإمدادات، والجودة الثابتة، والتسليم الموثوق به.
ترتكز توصياتنا على فهم التطبيق، مما يساعد العملاء على تجنب المشكلات الشائعة وتحقيق نتائج موثوقة.
تم تصميم إنسترافا لتقليل عدم اليقين - بحيث يكون كل قرار تتخذه أكثر وضوحًا وأمانًا وموثوقية.
