Electrical Asset Monitoring  T401 - Rugged Monitoring
                     T401
TRANSFORMER MONITOR
ROBUST  |  RELIABLE  |  RESPONSIVE
T401 MONITORING FUNCTIONS
Transformer Health Assessment
Real Time Monitoring and Advance Control - Remote Monitoring and Control
- Insulation Life Estimation
- Overload Capacity
- Bubbling Temperature
- Moisture in Insulation
Transformer Monitoring - Real time Alarm and Notifications
- Easy Integration
- Oil Temperature
- Winding Temperature
- Load Current
- OLTC Tap Position
- Liquid Level
- Tank Pressure
Bushing Monitoring Integration Dry Type TR Monitoring
- TanDelta (Power Factor)
- Capacitance
PD Monitoring Integration
- PD Amplitude Transformer Monitoring
- PD Discharge Rate Dissolved Gas analyzer Integration
- Single gas DGA
- Multi-gas DGA
- Moisture
Cooling Control
- Fan/Pump Status
- Fan Bank Motor Current Vault Monitoring
- Cooling Efficiency OLTC Monitoring
- Fan bank Exercise - Oil Temperature
- Oil Level
- OLTC Tap Position
- OLTC Motor Current
- Contact Wear
02 03
FUNCTIONALITY
RUGGED SOFTWARE
T401 SYSTEM
ARCHITECTURE
Hardwired (Analog/Digitals)
Serial RS-485 (Modbus / DNP3.0 / IEC60870-104)
Hardwired (Analog/Digitals)
FO available with T501
1 2 3 4 5 6 7
Sensors on Fiber Optic Transformer Sensor on Dissolved Bushing & Partial Discharge
Cooling Control
Transformer Temperature Control Cubicle OLTC/RTCC Gas Analyzers PD Monitor Monitor
Certifications
- ATEX
1. OTI,WTI, RTD, PRD, Breather, Buchholz - Lloyds
Relay, LLG/OLI, Pressure Sensor etc. 1 - CE / RoHs
2. Transformer Control Cubicle 62 1
3. OLTC and RTCC Panel 7
1
4. Cooling System and Control Cabinet Variants
5. Dissolved Gas Analyzer 4 - Offshore / Marine
6. Bushing Monitoring 1
3 5 - Ethernet Redundancy: PRP7. Partial Discharge Monitor - Enterprise Monitoring Software
4
04 05
ARCHITECTURE
KEY BENEFITS
T401 FEATURES
Comprehensive Features to Meet Market Demand - Desktop and Web Client
- Remote Configuration
- Advanced Visualization
- Data Logging, Reporting
- Supports Industry Standard Protocols
RELAY OUTPUTS - Customization available on request
- 08 x Form C Relay contacts - Secure access to data & Configuration
- NO-C-NC - Multiple Language Support
- Cooling control
POWER INPUT - Alerts / Alarms
- 24 / 48 Vdc
- Power Supply Unit /
  Adaptor provided as LOCAL DISPLAY
  Accessories - Industrial Grade LED
  (OPTIONAL) - Current Values of all Parameters
LED INDICATORS
- Power ON/OFF
- System Fault
- Alarm & Log
ANALOG OUTPUTS
- 04 x User Programmable USB PORT
- Current Output (4-20mA)
- Voltage Output (0-5V/0-10V) - Configuration & 
   Troubleshooting
- Data Export
- MicroSD Card 
ANALOG / DIGITAL INPUTS
- 08 x Configurable Inputs
- RTD (PT-100), Potentiometer
- AC Current (Clamp-On CT), DC current (4-20mA)
- Digital (Dry Contacts) SERIAL PORT (RS-485)
- AC/DC Voltage ETHERNET PORTS
- Data Input/ - 02 x configurable Ports (RJ-45/SFP)
   output Integration - Full Redundancy
- Modbus Protocol - PRP Protocol
- DNP3.0 Protocol - Modbus, DNP3.0, IEC60870-104 and IEC 61850
- IEC60870-104 Protocol
06 07
FEATURES
RUGGED SOFTWARE
TECHNICAL SPECIFICATIONS PRODUCT DRAWINGS
Input Power Requirement 24/48 VDC ± 10% 237.00mm
POWER SUPPLY
Power Consumption 20 Watts [9.33in]
175.10mm
# of Input Channels 08/04 Channels 4X M8X1.0 - [6.89in]
Input Channel Types Configurable from a range of input options, RTD, AC/DC current, ANALOG/DIGITAL AC/DC voltage, Potentiometer, Dry/Powered contact switch
INPUT MODULE
Accuracy of Channels ±0.5% full scale input range
Input Channel Sample Rate 1 Hz
# of Output Channels 04 Channels
ANALOG OUTPUT
MODULE Output format 4-20 mA or 0-5Vdc / 0-10Vdc (Configurable for any measured / calculated value)
OUTPUT RELAY # of Output Channels 08 Form C relays (5A)
MODULE User Programmable Yes, from Rugged Connect Software or webserver, if present
Data Storage Capacity 4 or 8 GB, Industrial Grade micro-SD, extendable to 2TB
267.54mm
DATA STORAGE & Logging Rate User Configurable, 1 sec interval on USB [10.53in]
CONFIGURATION System Fault Indication 1 System Fault Relay, with Local LED light
Config port USB (to use with Rugged connect windows software)
Serial Communication 01 x RS-485 (RS-232 optional converter)
Ethernet Communication 02 Ethernet Ports, configurable to RJ-45 or SFP (Gigabit Optical)
COMMUNICATION Redundancy Support PRP Redundancy
Protocol Supported Modbus, DNP3.0, IEC60870-104, IEC61850,Other protocols provided on request
Conducted & Radiated Emissions ICES-003 (2016), CISPR32 (2015), CISPR11 (2015)
ESD and EM Field Immunity IEC61000-4-2, C37.90-3, IEC61000-4-3, C37.90.2 Weight : 2 Kilograms
Fast Transient & Surge Immunity IEC61000-4-4, IEC61000-4-5, C37.90.2 
EMC TYPE TESTING Magnetic Field Immunity IEC61000-4-8, IEC61000-4-10
Immunity from Conducted Disturbances IEC61000-4-6, IEC61000-4-16 ORDERING CODE
Ripple, Dips & Damped Oscillatory IEC61000-4-17, IEC61000-4-18, IEC61000-4-29 Model Number Number of Analog Outputs
Safety IEC60255-26 and CE Certified Based on Input Channel Configuration 0 = No Analog Outputs
4 = 4 Analog Outputs
Operating Temperature -40 to 72 °C
T 4 0 1 - E A R M Memory Size
Operating Humidity 95% Non Condensing 4 = 4 GB
ENVIRONMENTAL 8 = 8 GB
AND MECHANICAL Storage Temperature -40 to 85 °C
Ethernet Protocols
Dimensions W26.7 cm x H7.2 cm x D18.7 cm (10.5’’ x 2.8” x 7.4”) 0 = No Ethernet Number of Relay Outputs
0 = No Relay Outputs
Weight App. 1.5 to 2.0 Kg. (based on number of configuration) 1  = Ethernet Board RJ45
2 = Ethernet Board RJ45 & SFP 8 = 8 Relay Outputs 
08 09
SPECIFICATIONS
65.00mm
[2.56in]
187.54mm
[7.38in]
187.54mm
[7.38in]
65.00mm
[2.56in]
96.10mm
[3.78in]
DS0026R05_T401 TnD_EN_A4 DRAWINGS
RUGGED MONITORING
Certification
ISO9001
ISO14000
ISO 45001 (OHSAS 18000)
ISO17025 Certification
NIST Certification
ATEX Certification
Website Rugged Monitoring Services
www.ruggedmonitoring.com Rugged Monitoring provides 
customization of sensors, monitors 
& software. In addition we offer 
Visit us to see more on-site commissioning services, 
Solutions maintenance contracts and technical 
https://www.ruggedmonitoring.com/fibre-optic-temperature-solutions support to all customers worldwide.
Blogs
https://www.ruggedmonitoring.com/blogs/1
Video
https://www.ruggedmonitoring.com/fiber-optic-videos About Rugged Monitoring
Application Notes Industry leading team of fiber optic 
https://www.ruggedmonitoring.com/downloads/application-notes/1 experts with 100+ years of combined 
Software
https://www.ruggedmonitoring.com/downloads/dcsoftware experience committed to delivering 
Technical Drawings customizable solutions for challenging 
https://www.ruggedmonitoring.com/downloads/dctechnicaldrawings applications. We offer a range of reliable, 
Product Manuals high performance, customizable sensors 
https://www.ruggedmonitoring.com/downloads/dcproductmanual and monitoring solutions that are 
Ebook immune to external influence.
https://www.ruggedmonitoring.com/fiber-optic-technical-ebooks
Social Media Contact Us
https://www.linkedin.com/company/ruggedmon/ Address
https://www.facebook.com/ruggedmon 1415 Frank-Carrel, Suite 230,
https://www.instagram.com/ruggedmon/ Quebec, QC - G1N 4N7,
CANADA
https://www.youtube.com/c/ruggedmonitoring
https://twitter.com/ruggedmon Contact Details
Phone: +1-418-767-0111
https://in.pinterest.com/ruggedmonitoring/ Email: [email protected]
https://www.xing.com/companies/ruggedmonitoring
2018 Rugged Monitoring Company. All rights reserved. Information subject to change without notice. All trademarks are 
properties of their respective companies, as noted herein.
10
RUGGED MONITORING