INNO fiber optic na mga sensor ng temperatura ,mga sistema ng pagsubaybay sa temperatura.
- Two core types available: PT100 temperature controllers (for medium-low voltage, general scenarios) and fiber optic temperature controllers (for high voltage, malakas na EMI, high insulation requirements).
- Key technical specs: Operating temp -20℃~+55℃, kahalumigmigan <95% (25℃), measurement range -30℃~240℃ (PT100) / -100℃~300℃ (fiber optic), accuracy ±1%FS (PT100) / ±0.5%FS (fiber optic).
- Compliance with JB/T7631-2016, ISO9001:2016, IEC61000-4, and GB/T17626-2008 standards for reliability and safety.
- Core functions: Multi-point temperature monitoring, auto/manual fan control, over-temperature alarm/trip, RS485/232 communication, and 4~20mA analog output.
- Global application cases: Hospitals, mga data center, wind power stations, and manufacturing plants.
1. What is a Dry-Type Transformer Temperature Controller?
A dry-type transformer controller ng temperatura is a high-precision device designed to monitor and regulate the temperature of dry-type transformers. It tracks real-time temperatures of transformer windings, mga core ng bakal, and surrounding environments, preventing overheating caused by overloads or poor ventilation, and ensuring long-term stable operation.
1.1 Core Definition
Early dry-type transformers relied on mechanical thermometers for basic temperature reading, lacking automatic control capabilities. Modern controllers, gayunpaman, integrate electronic sensing, intelligent control, and communication functions. They serve as standard safety components for 2.5KV–35KV medium-voltage dry-type transformers, widely used in healthcare, mga data center, and renewable energy sectors.
1.2 Technical Standard Compliance
All controllers fully comply with industry and international standards, kasama ang:
- JB/T7631-2016 Electronic Temperature Controllers for Transformers
- ISO9001:2016 Sertipikasyon ng International Quality Management System
- IEC61000-4:1995 Electromagnetic Compatibility (EMC) Testing Standard
- GB/T17626-2008 Electromagnetic Compatibility Testing and Measurement Techniques
2. PT100 vs. Fiber Optic Dry-Type Transformer Temperature Controllers
![High precision fluorescent fiber optic temperature sensor]()
PT100 and fiber optic controllers differ in technical performance and scenario adaptability. Fiber optic models excel in strong EMI and high-insulation environments, while PT100 models suit general applications.
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Dimensyon ng Paghahambing
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PT100 Temperature Controller
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Fiber Optic Temperature Controller
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Core Principle
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Resistance-temperature 特性 of platinum resistor (PT100)
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Fluorescence lifetime-temperature correlation of fluorescent materials
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Kakayahang umangkop sa kapaligiran
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-20℃~+55℃; Halumigmig <95% (25℃)
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-20℃~+55℃ (extendable for some models); Halumigmig <95% (25℃)
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Power Supply
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AC 220V (+10%, -15%); 50/60Hz (±2Hz)
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AC 220V (+10%, -15%); 50/60Hz (±2Hz)
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Measurement Performance
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Saklaw: -30.0℃~240.0℃; Katumpakan: ±1%FS; Resolusyon: 0.1℃
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Saklaw: -100℃~300℃ (more stable at -30℃~250℃); Katumpakan: ±0.5%FS; Resolusyon: 0.1℃
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Output Capacity
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Fan: 9A/250VAC; Kontrolin: 5A/250VAC (lumalaban) / 5A/30VDC (lumalaban)
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Fan: 9A/250VAC; Kontrolin: 5A/250VAC (lumalaban) / 5A/30VDC (lumalaban)
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Pagkonsumo ng kuryente
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≤8W
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≤10W
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EMI Resistance & Pagkakabukod
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Reduced EMI via shielded cables; meets JB/T7631-2016 insulation standards
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EMI-immune (no electromagnetic induction); excellent insulation for high-insulation scenarios
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Mga Sitwasyon ng Application
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Medium-low voltage (≤10KV), general indoor/outdoor areas (office buildings, malls)
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Mataas na boltahe (≥10KV), malakas na EMI (mga substation, wind/solar farms), high-insulation (pangangalaga sa kalusugan, precision electronics)
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3. Advantages of FJINNO Dry-Type Transformer Temperature Controllers
FJINNO controllers stand out for their compliance with technical specs, scenario adaptability, and integrated functions, meeting diverse industry needs.
3.1 Full Specification Compliance & Mataas na Maaasahan
All core specs (kakayahang umangkop sa kapaligiran, katumpakan ng pagsukat, output capacity) meet JB/T7631-2016 and IEC standards. Production includes 72-hour aging tests, high-low temperature cycling tests, and EMC tests to ensure stability in extreme conditions.
3.2 Intelligent Functions & Flexible Control
- Multi-level temperature control: Auto fan activation based on preset thresholds (hal., 80℃ start, 60℃ stop) with manual override.
- Simulation testing & digital compensation: Corrects sensor errors for long-term accuracy.
- Customizable thresholds: Adjusts alarm/trip values and communication protocols for specific scenarios.
3.3 EMI Resistance & Kakayahang umangkop sa kapaligiran
- PT100 models: Shielded design reduces EMI interference.
- Fiber optic models: Fully EMI-immune, ideal for high-EMI environments.
- Enclosure protection: IP54 (IP65 for some fiber optic models) resists dust, kahalumigmigan, and mild chemical corrosion.
3.4 Komunikasyon & Pamamahala ng Data
- RS485/232 ports: Support Modbus-RTU protocol for integration with BMS or power monitoring platforms.
- 4~20mA analog output: 3/4 independent channels for real-time data transmission to third-party devices.
- “Black box” function: Stores 100+ historical temperature/fault records (non-volatile).
3.5 Scenario-Specific Customization
Tailors measurement ranges, control thresholds, and insulation levels for unique needs (hal., high-insulation versions for healthcare, EMI-enhanced designs for power stations). Supports integrated monitoring of transformer and ambient temperatures.
4. Core Functions of Dry-Type Transformer Temperature Controllers
Functions vary by type (PT100 vs. fiber optic) but cover monitoring, kontrol, komunikasyon, and protection.
4.1 PT100 Temperature Controller Functions
4.1.1 High-Precision Temperature Monitoring
- 3-phase cycle/max value display: Switches between A/B/C phase winding temps or locks the highest value (0.1℃ resolution).
- Multi-point monitoring: Supports windings, mga core ng bakal, and ambient temps (hanggang sa 6 mga sensor).
- Digital compensation: Automatically corrects sensor errors to maintain ±1%FS accuracy.
4.1.2 Intelligent Cooling & Protection
- Auto/manual fan control: Auto-start at set temps; manual override for maintenance.
- Fan periodic activation: Prevents bearing jamming (hal., bawat 7 araw).
- Over-temperature alarm/trip: Audible/visual alarm at 110℃; trip signal at 150℃ to cut transformer power.
4.1.3 Kaligtasan & Pamamahala ng Data
- “Black box” function: Stores historical data and faults.
- Fault alarm: Triggers alerts for sensor disconnection or power anomalies.
- Cabinet door alarm: Alerts for unauthorized access.
4.2 Fiber Optic Temperature Controller Functions
4.2.1 Wide-Range High-Precision Monitoring
- Saklaw ng pagsukat: -100℃~300℃ (optimal stability at -30℃~250℃) for high-voltage transformer windings.
- Pagsubaybay sa core ng bakal: Directly measures core temps to prevent insulation aging.
4.2.2 EMI Immunity & High Insulation
- Fully EMI-immune: No electromagnetic induction, ensuring accuracy in substations or wind farms.
- Enhanced insulation: No electrical connection between sensor and host, meeting healthcare/precision electronics requirements.
4.2.3 Shared Functions with PT100 Models
Includes auto fan control, over-temperature protection, RS485/232 communication, 4~20mA output, at “itim na kahon” storage for consistent operation logic.
5. Global Application Cases of FJINNO Controllers
FJINNO controllers are deployed in 30+ mga bansa, with cases demonstrating spec-scenario alignment.
5.1 Munich University Hospital, Alemanya (High-Insulation Healthcare Scenario)
- Background: 2x 10KV/800KVA transformers powering surgical equipment (high insulation, EMI-sensitive).
- Solusyon: Fiber optic controllers (IP54, EMI-immune, high insulation) integrated with hospital BMS; core temp monitoring + cabinet alarm.
- kinalabasan: 3 years of stable operation (±0.5℃ accuracy); no EMI-related issues; ambient temp controlled at 22℃~25℃.
5.2 Texas Data Center, USA (High-Voltage EMI Scenario)
- Background: 12x 20KV/1250KVA transformers in 35℃ ambient temps (server EMI).
- Solusyon: Fiber optic controllers (wide range, EMI-immune) kasama “itim na kahon” and 4~20mA output for data center monitoring.
- kinalabasan: Winding temps <80℃; zero over-temperature alarms; AWS certification obtained.
5.3 Xinjiang Wind Farm, Tsina (Outdoor Extreme Environment)
- Background: 35KV transformers in outdoor containers (-30℃, wind turbine EMI, alikabok).
- Solusyon: Fiber optic controllers (IP65, low-temp startup module) connected to wind farm O&M platform via RS485.
- kinalabasan: Stable startup in low temps; <±0.3℃ measurement error; unmanned O&M achieved.
5.4 São Paulo Automotive Plant, Brazil (Medium-Voltage Fluctuating Loads)
- Background: 10KV/1000KVA transformers with variable loads (peak daytime, low nighttime).
- Solusyon: PT100 controllers (periodic fan activation, digital compensation) with time-specific thresholds; integrated with plant power systems.
- kinalabasan: Winding temp fluctuation reduced from ±15℃ to ±5℃; 30% less fan idle time; 5-year extended transformer lifespan.
6. When to Choose a Dry-Type Transformer Temperature Controller
Selection depends on transformer specs, mga kondisyon sa kapaligiran, and application needs.
6.1 Voltage Level & Load Characteristics
- Medium-low voltage (≤10KV), general loads: PT100 models (cost-effective, meets basic EMI needs).
- Mataas na boltahe (≥10KV), full-load operation: Fiber optic models (wide range, high accuracy for winding temps).
6.2 Environmental EMI & Insulation Requirements
- Malakas na EMI (mga substation, nababagong enerhiya): Fiber optic models (EMI-immune).
- High insulation (pangangalaga sa kalusugan, precision electronics): Fiber optic models (enhanced insulation).
- General environments (offices, malls): PT100 models (optimal cost-performance).
6.3 Pagsubaybay & Control Needs
- Multi-point monitoring: Choose expandable models (supports windings, mga core, ambient).
- Malayong pagmamanman: Select models with RS485/232 and 4~20mA output for platform integration.
- Extreme environments: IP65 fiber optic models (resists low temps, alikabok, kahalumigmigan).
7. Installation Steps for Dry-Type Transformer Temperature Controllers
Installation follows GB 50150 Electrical Equipment Handover Test Standards and product manuals. Ensure the transformer is de-energized and grounded before starting.
7.1 Pre-Installation Preparation
- Equipment verification: Confirm controller model matches transformer voltage; check specs (kakayahang umangkop sa kapaligiran, output capacity).
- Tool preparation: Screwdrivers, wire strippers, crimpers, multimeters, insulation tape, drills, mga antas, and high-temp tape (for PT100 sensors).
- Site assessment: Identify controller location (near transformer for wiring) and sensor positions (winding midpoints, core clamps); keep PT100 sensors ≥30cm from high-voltage coils.
7.2 Pag-install ng Sensor
7.2.1 PT100 Sensor Installation
- Clean winding surfaces; attach PT100 probes to midpoints of 3-phase windings with high-temp tape (≥180℃).
- Mount core sensors on core clamps (avoid direct contact with silicon steel sheets); secure with cable ties.
- Route sensor wires along transformer frames (labeled for phase); keep away from high-voltage coils.
7.2.2 Fiber Optic Sensor Installation
- Verify pre-drilled channels in windings (matching probe diameter).
- Insert probes into windings (1/2 winding thickness depth); seal roots with high-temp adhesive to prevent loosening.
- Route fiber cables in dedicated trays (bend radius ≥5cm); connect to controller and seal for dust protection.
7.3 Controller Host Installation
- Mounting location: Install on walls or in control cabinets (1.2~1.5m height for accessibility); avoid direct sunlight, ulan, or heat sources.
- Fixing: Secure brackets with expansion bolts; mount the host and level with a level tool.
- Outdoor protection: Add rain shields (IP≥54) for outdoor installations; ensure ventilation.
7.4 Pag-configure ng mga kable
- Power wiring: Connect AC 220V (L/N/PE terminals); verify voltage (187V~242V) with a multimeter.
- Sensor wiring: PT100 wires to A/B/C terminals (polarity-sensitive); fiber optic probes to dedicated ports (tighten nuts).
- Control/communication wiring: Fan wires to “FAN” mga terminal; alarm wires to “ALM”; trip wires to “TRIP”; RS485 (A/B terminals, shield grounded at host end); 4~20mA wires to analog output terminals (labeled clearly).
7.5 Pre-Power Check
- Circuit testing: Use a multimeter to check for short circuits in power/sensor/control loops.
- Visual inspection: Confirm no loose terminals, damaged wires, or debris in the host.
- Paglilinis: Remove dust from the host and sensors.
7.6 Commissioning & Acceptance
- Power-on self-test: Turn on power; confirm no fault codes; check temp readings match ambient.
- Function testing:
- Simulated heating: Use a heat gun to test PT100 accuracy (±1%FS); use a calibrated temperature source for fiber optic models (±0.5%FS).
- Control test: Verify fan activation at 80℃ and shutdown at 60℃; test alarm at 110℃ and trip at 150℃.
- Communication test: Check data transmission via RS485/4~20mA to monitoring platforms.
- Acceptance: Document commissioning data; sign off after confirming all specs/functions meet requirements.
8. Why Choose FJINNO Dry-Type Transformer Temperature Controllers?
FJINNO is a preferred choice for global buyers due to compliance, adaptability, at suporta.
8.1 Full Standard Compliance & Technical Reliability
All products pass third-party testing for JB/T7631-2016, IEC61000-4, and ISO9001 standards, ensuring consistent performance in global markets.
8.2 Scenario-Tailored Product Portfolio
Covers PT100 (general use) and fiber optic (specialized use) mga modelo. Customizes functions for healthcare, mga data center, and renewable energy to avoid over-specification or under-performance.
8.3 Global Support & Fast Delivery
- Inventory: Stock of standard models for 48-hour domestic delivery and 72-hour international delivery.
- Teknikal na suporta: Free pre-installation consultation, remote commissioning, and on-site support via 15 global service centers.
- Dokumentasyon: English manuals, spec sheets, and compliance certificates for import clearance.
8.4 Kaligtasan & Data Security
- Multiple protections: Over-temperature trip, door alarm, and fault self-test reduce operational risks.
- Data integrity: “Black box” and encrypted communication prevent data loss or tampering.
Disclaimer
This document is for reference only and does not constitute a binding agreement. Mga teknikal na pagtutukoy, functions, and application details are subject to change without prior notice. For accurate, up-to-date information, please refer to the official contract signed with FJINNO and the latest technical documents provided by FJINNO’s sales manager. FJINNO shall not be liable for any discrepancies between this guide and actual product performance caused by unauthorized modifications or improper use.
Sensor ng temperatura ng fiber optic, Intelligent na sistema ng pagsubaybay, Ibinahagi ang tagagawa ng fiber optic sa China
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