Specifications- Power Supply: 85-260 Vac-dc with reversible polarities.
- Inputs: NT935 ETH has 4 RTD Pt100 inputs, while NT538 ETH has 8 RTD Pt100 inputs, both with 3-wire connections and cable compensation up to 500 m.
- Outputs: Both devices feature 2 alarm relays (ALARM-TRIP), 2 fan control relays (FAN1 and FAN2), and 1 fault relay. They support Ethernet output 10Base T/100Base-TX Modbus TCP slave.
Performance and Testing- Compliance with CE standards and protection against electromagnetic interference (EN61000-4-4).
- Dielectric strength of 1500 Vac for 1 minute between relays and sensors.
- Operating temperature range from -20°C to +60°C and humidity tolerance up to 90% non-condensing.
- Data storage capability for a minimum of 10 years.
Data Management and Display- Equipped with 2 displays for temperature, messages, and channel visualization.
- LED indicators for alarm and fan status.
- Temperature monitoring from 0°C to 240°C with programmable alarm thresholds.
- Features include sensor diagnostics, data storage diagnostics, and automatic channel scanning.
Additional Features- Options for tropicalization to withstand harsh climates.
- Available certifications for Canadian, American, and marine applications.
- Dedicated software (ETH MANAGER) for enhanced functionality.
Dimensions- NT935 ETH: 232 x 166 mm with a panel cut-out of 140 x 205 mm.
- NT538 ETH: 100 x 100 mm with a panel cut-out of 92 x 92 mm.
Technical Specifications and Features- Memory and Programming: The device features front keyboard access for programming, automatic exit from programming after 1 minute of inactivity, and error programming alerts. It supports automatic channel scanning, hottest channel selection, or manual scanning. It also stores maximum temperatures reached and alarm states.
- Dimensions: The device measures 100 x 100 mm with a depth of 131 mm, including terminals, and requires a panel cut-out of 92 x 92 mm.
ETH Manager Software- Functionality: This software allows monitoring, setting, and analyzing the thermal operation of electrical machines remotely. It supports up to 4 devices simultaneously and is suitable for electrical substations, photovoltaic systems, power stations, and industrial plants.
- Features: Provides temperature display, alarm activation, event recording, graphical representation, and programming panel. Available in high or low resolution.
CONV ETH- Connectivity: Enables Ethernet connectivity for Tecsystem units, allowing integration into monitoring systems and connection to Ethernet networks. It supports Modbus TCP slave functionality.
- Specifications: Operates with a power supply of 85-260 Vac-dc, includes RS485 Modbus RTU input, and Ethernet 10Base T / 100Base-TX output.
T154 Unit- Purpose: Designed for temperature control of MV dry type and cast resin transformers, featuring dual display and enhanced microcontroller capabilities.
- Inputs and Outputs: Includes 4 Pt100 inputs and 4 relay outputs for alarm, trip, fault signal, and fan control. It offers universal power supply from 24 to 240 Vac-dc.
NT935 AD Unit- Design: Specifically for dry type and cast resin transformers, featuring dual display, VOTING function, and enhanced data management.
- Outputs: Provides analog 4-20mA and digital RS485 Modbus RTU outputs. It includes 5 protection relays for alarm, trip, fan control, and fault signaling.
Technical Specifications- Power Supply: Rated values from 24 to 240 Vac-dc, with reversible polarities.
- Inputs: 4 RTD Pt100 inputs with 3 wires, protected against electromagnetic interference.
- Outputs: Includes 2 alarm relays (ALARM-TRIP), 2 fan control relays (FAN1 and FAN2), and 1 fault relay. Output contacts have a capacity of 10A-250 Vac.
- Tests and Performances: Assembled according to CE rules, with protection against electromagnetic noises (CEI-EN61000-4-4). Dielectric strength of 1500 Vac for 1 minute between relays and sensors, relays and power supply, and power supply and sensors. Accuracy is ± 1% full scale value ± 1 digit.
- Environmental Conditions: Operating temperature from -20°C to +60°C, with 90% non-condensing humidity.
- Housing: Self-extinguishing NORYL UL 94V0 with polycarbonate frontal film IP65.
- Data Storage: Minimum of 10 years.
- Additional Features: Digital linearity of sensor signal, self-diagnostic circuit, and options for tropicalization and railway applications EN50121-5 conformity.
Displaying and Data Management- Equipped with 2 displays (13 mm, 3 digits) for temperatures, messages, and channels.
- LED indicators for alarm states and fan statuses.
- Temperature monitoring range from 0°C to 240°C.
- Alarm thresholds for channels and fans, with diagnostic features for sensors and data storage.
- Programming access via front keyboard, with automatic exit after 1 minute of inactivity.
- Features include automatic channel scanning, hottest channel detection, manual scanning, and alarm reset.
Dimensions- 100 x 100 mm DIN IEC 61554, depth 131 mm including terminals.
- Panel cut-out of 92 x 92 mm.
Options- Basic version without RS485 and 4.20mA outputs.
- ETH version with Ethernet output.
Electrical Connections- The NT935IR-AD control unit, paired with TIR409 infrared sensors, allows non-contact temperature control, suitable for medium or high voltage windings.
- Designed to operate in high electromagnetic fields, ensuring reliability and security.
- Compact size with laser pointer for correct positioning.
- Equipped with 3 inputs for winding temperature control and an additional input.
- Output relays available for ALARM, TRIP, FAN1/FAN2, and FAULT.
- Features include Voting and Intellifan functions, RS485 Modbus RTU, and 4-20mA analog output for remote data management.
- Available with special coating for resistance to harsh weather conditions.
Overview: The document provides technical specifications and functionalities of various electronic control units designed for temperature monitoring and fan control in transformer systems. These units are equipped with multiple inputs and outputs, diagnostic features, and are compliant with CE standards.
Specifications:- Power Supply: Universal input from 24 to 240 Vac-dc, with reversible polarities.
- Inputs: Configurable for RTD Pt100 sensors, with protection against electromagnetic interference and cable compensation up to 500 meters.
- Outputs: Include alarm, trip, and fan control relays, with options for Modbus RTU and Ethernet outputs.
- Temperature Monitoring: Ranges from -20°C to 220°C, with programmable alarm thresholds.
Functionalities:- Alarm and Trip Functions: Multiple thresholds for alarms and trips, with audible and visual indicators.
- Fan Control: ON-OFF thresholds for fan operation, with forced ventilation options.
- Diagnostics: Sensor and data storage diagnostics, with automatic error display and reset options.
- Data Management: Includes data storage for up to 10 years, with maximum temperature and alarm history.
Design and Construction:- Dimensions: Various sizes specified for different models, with panel cut-out dimensions provided.
- Housing: Made from polycarbonate or steel, with IP50 or IP65 protection ratings.
- Compliance: Built in accordance with CE and EN61000-4-4 standards, with dielectric strength testing.
Additional Features:- Programming and Display: Front panel access for programming, with automatic exit after inactivity.
- Options: Tropicalization for harsh climates, and different versions with or without digital outputs.
Overview: The document provides technical specifications and functionalities of various electronic microcontroller-based units designed for temperature monitoring in electric motors, transformers, diesel generators, and biogas systems. These units offer flexibility, multiple input channels, and various output options for diverse applications.
NT538 AD Unit:- Designed for temperature monitoring of electric motors and transformers.
- Features 8 input channels for Pt100 sensors and multiple programming options.
- Outputs include Analog 4-20mA and Digital RS485 Modbus.
- Equipped with 5 relay outputs for alarms, faults, and fan control.
- Universal power supply (24 to 240 Vac-dc) and optional certifications for American, Canadian, and marine markets.
- Options for tropicalization to withstand harsh climates.
T512 Unit:- Intended for motor temperature control with up to 12 independent channels.
- Includes 12 Pt100 inputs and 5 output relays, plus a fault relay.
- RS485 Modbus RTU output for remote control.
- Features a 20-character LCD display for easy programming and data viewing.
- Universal power supply and optional tropicalization.
MM453 AD Unit:- Suitable for temperature control of diesel generators and biogas systems.
- Monitors bearings, exhaust gas, lubricating oil, and cooling liquid.
- Offers Analog 4-20mA and Digital RS485 Modbus outputs.
- Customizable for up to 24 measuring points with various sensor types.
- Universal power supply and optional tropicalization.
Technical Specifications:- Power supply: 24-240 Vac-dc with reversible polarities.
- Inputs: RTD Pt100 sensors with electromagnetic interference protection.
- Outputs: Multiple relay outputs for alarms and faults, with Modbus RTU RS485.
- Environmental: Operating temperature from -20°C to +60°C, humidity up to 90% non-condensing.
- Compliance: Assembled according to CE rules, with protection against electromagnetic noises.
Options and Features:- Basic versions available without digital or analog outputs.
- Options for tropicalization and railway applications conformity.
- Features like Voting and Fail Safe functions, alarm reset, and data management capabilities.
Technical Specifications OverviewPower Supply: The devices support a universal power supply ranging from 24 to 240 Vac-dc with reversible polarities.
Inputs: Configurable inputs range from 1 to 24, supporting RTD Pt100, Pt1000 sensors, and TcK thermocouples. The devices allow for different cards to be mounted in the same unit and feature removable rear terminals. Input channels are protected against electromagnetic interference, with cable compensation for RTD sensors up to 500 meters and TcK sensors up to 100 meters.
Outputs: The units are equipped with multiple alarm relays and a fault relay for sensor or operational anomalies. Output capabilities include 4-20 mA and RS485 ModBus RTU outputs.
Tests and Performances: Devices are assembled in accordance with CE standards, offering protection against electromagnetic interference and dielectric strength of 1500 Vac for one minute. They operate within a temperature range of -20°C to +60°C and a humidity level of 90% non-condensing. The devices feature a self-diagnosis circuit and optional tropicalization for harsh climates.
Displaying and Data Management: Equipped with LCD displays and LEDs for relay status indication, the devices support temperature monitoring with specific ranges for different sensor types. They offer memory for maximum and minimum temperatures and alarm thresholds.
Dimensions and Options: The devices come in various sizes with specific panel cut-out dimensions. Options include basic versions without certain outputs and versions with RS485 or 4-20 mA outputs.
Specific Models:- MM453: Supports multiple inputs and outputs, suitable for complex monitoring needs.
- T412: A single input unit for monitoring a single hot spot, equipped with alarm and fault relays.
- NT133-3: Designed for temperature control of HV and MV oil power transformers, featuring redundant control and Modbus RS485 output for remote control.
Overview: The document provides technical specifications and descriptions for the TPL503 system, which includes the BB211 control unit and TPL503 sensor, designed for the protection and monitoring of hermetically sealed oil transformers. It replaces traditional electromechanical devices with electronic sensors to monitor temperature, pressure, and oil level.
Key Components:- BB211 Control Unit: Protects transformer temperature, transmits data for predictive maintenance, and features alarm contacts. It includes LEDs for temperature, pressure, and level alarms, and stores maximum and minimum parameter values.
- TPL503 Sensor: Offers a 360° view of the oil, simplifies filling, and connects to the control unit via a 4-pin cable. It is tested for tightness and operates within a temperature range of -40°C to +200°C.
Technical Specifications:- Power Supply: 85-260 Vac-dc, 50/60 Hz.
- Inputs and Outputs: Digital input for TPL503, alarm relays, and Modbus RTU RS485 output.
- Environmental Conditions: Operating temperature from -20°C to +60°C, humidity up to 90% non-condensing.
- Measured Values: Oil temperature range from -40°C to +120°C, pressure from -400 to 500 mbar, and level in three modes (FULL, ALARM, TRIP).
Additional Features:- Remote programming and diagnostics for TPL parameters.
- Data storage for up to 10 years.
- Self-diagnostic circuit and optional tropicalization.
Installation and Connectivity: The system supports DIN rail mounting and connects to SCADA systems, PLCs, and gateways via RS485 Modbus RTU. It can also integrate into Ethernet networks.
Control Panels: Custom solutions are available, designed to minimize electromagnetic interference, with services including technical specification drafting, schematic diagram definition, and electrical testing.
Temperature Sensors: Various RTD Pt100 sensors are described, with specifications for temperature range, accuracy, and cable types, suitable for different applications and environments.
Technical Specifications for Pt100 Probes and Extension Cables- Compliance with CEI 20.35 standards.
- 4 pairs of 20AWG with shielding.
- External diameter: 12 mm.
- Operating temperature: -35°C to +90°C.
- Dielectric strength test: 2000 Vca for 60 seconds.
- Extension cable diameter: 5.2 mm ± 0.2.
- Operating temperature: -40°C to +200°C.
- Dielectric strength test: 5000 Vca for 60 seconds.
SCS-R Junction Box Features- Dimensions: 187 x 128 x 58 mm (including cable glands).
- Protection: IP55.
- Material: Polyamide UL 94V0.
- Terminal board wiring section: 0.25 to 1.5 mm².
- Flame resistance: UL 94V0.
- Operating temperature: -20°C to +120°C.
The SCS-R box is designed for quick, safe, and economical installation of temperature sensors for cast resin transformers. It comes standard with 3 PT100 sensors, each with a 2.5 m cable.
SCS-R 6/8 Junction Box Features- SCS-R 6 dimensions: 197 x 143 x 67 mm.
- SCS-R 8 dimensions: 224 x 169 x 81 mm.
- Protection: IP66.
- Material: Die-cast aluminum.
- Terminal board wiring section: 0.25 to 1.5 mm².
- Flame resistance: UL 94V0.
- Operating temperature: -40°C to +120°C.
The aluminum version includes 6 PT100 sensors, each with a 2.5 m cable.
PT73-220 Device Features- Input Voltage: 230 Vac +/-10% 50Hz.
- Delay time: 1 to 5 seconds.
- Dimensions: 40 x 79 mm, depth 90 mm.
- Polyamide housing UL 94V2.
- Protection fuses: 2.5 Amps (delayed).
- Operating temperature: -20°C to +60°C.
The PT73-220 provides additional protection against surges and fluctuations in 230 Vac power supply, with a turn-on delay to cut peak voltage.
SIM PTC and SIM PT100 Features- Electrical features include multiple output lines and simulators for temperature ranges.
- Mechanical features: Dimensions 106 x 90 mm, height 83 mm.
- Housing: PPO UL 94V0 self-extinguishing.
- Operating temperature: -20°C to +60°C.
- Humidity: 90% non-condensing.
Fan Cooling SystemsThe on-board ventilation system maintains optimal transformer temperature, crucial for safety during overloads. Key considerations include air inlet positioning, ambient temperature, humidity, and absence of dust and gases. TECSYSTEM's NT935 ED16 and NT538 ED16 series offer programmable ventilation management and the INTELLIFAN function to optimize thermal control.
VRT200 and VRT600 Devices- Power supply: 85-250 Vac 50/60 Hz.
- Inputs and outputs for remote control and fault detection.
- Dielectric strength: 1500 Vac for 1 minute.
- Operating temperature: -20°C to +60°C.
- Humidity: 90% non-condensing.
- Self-extinguishing housing NORYL UL 94V0.
- Dimensions: 100 x 100 mm, depth 131 mm.
These devices offer features like alarm LEDs, manual motor control, and programming access for motor protection setup.
Fan Series TTG Specifications- Models include TTG240, TTG300, and TTG360 with varying dimensions and performance metrics.
- Voltage/Current: 230 V / 0.34-0.37 A.
- Input power: 43-51 W.
- Speed: 2200-2540 RPM.
- Air flow: 208-280 M³/H.
- Insulation class: F.
Technical Specifications
The document provides technical specifications for the TG series fans, including models TG180, TG360, TG500, TGA1000, and TGO1000. Key parameters include dimensions (Ø, A, B in mm), voltage/current (V/A), input power (W), frequency (Hz), speed (RPM), and air flow (m³/h). All models comply with the ErP regulation and have insulation class B. Special versions are available on demand, including 60 Hz, IP44, and UL versions. Power supply cables are included.
Suggested Applications
The document suggests typical applications for different fan models, categorized under bars (BARRA) with varying dimensions and hypothetical transformer power ranges. Each bar model includes three fans, with specifications for air flow and transformer power. Special versions are available on demand for bars 400-600-800 and 1200-1800-3600.
Additional Information
TECSYSTEM S.r.l. reserves the right to modify technical specifications without notice. The company is based in Italy with international presence in Brazil, Egypt, and China.