T501

TMS with fibre-optic integration

T501; Real-time transformer monitoring device

T501

T501is a multi-channel data recording system for a wide range of analog and digital sensors/signals.

T501 can monitor the following transformer parameters:

  • Transformer oil temperature
  • Ambient temperature
  • Load current
  • Oil level indication
  • Cooling system status (fans/pumps)
  • Winding hot-spot temperature
  • Average winding temperature
  • Transformer ageing and loss of life
  • Overload capacity
  • Cooling control and fan bank exercise

The transformer monitoring system, T501, is designed to monitor the evaluation of essential transformer condition parameters, with the flexibility to use the following input signals/sensors:

  1. Up to 6 analog inputs with the combination of: RTD, potentiometer, CT, 4-20mA and VT inputs
  2. Up to 2 digital inputs for binary signals from transformers, e.g. fan/pump status
  3. Up to 24 fiber optic channels for temperature measurement of winding hot-spots
  4. Up to 8 programmable analog outputs (4-20mA or 0-5/10V) to send data to third-party systems
  5. Up to 8 relay outputs (Form C relays) to send an alarm signal to third-party systems
  6. Different communication options, e.g. serial (RS485), Ethernet (RJ-45) and fiber optic (SFP) ports

The T501 is a panel-mount unit that can be easily installed in the transformer control enclosure. The monitor is easily configured with the integrated software, Rugged Connect and web-client. Rugged Connect is a Windows-based software for data collection, analysis, visualisation and reporting. The T501 also comes with a web client that allows remote viewing, configuration and reporting via a web browser.

In addition, T501 can also send data to customer data loggers using the following protocols, which are supplied as an option separately with the unit:

  • Serial protocols: Modbus, DNP3.0, IEC 60870-5-101
  • Ethernet protocols (TCP / IP): Modbus, DNP3.0, IEC 60870-5-104, IEC61850

The T501 can also be integrated with other advanced sensors on the transformer, e.g. Dissolved Gas Analysers (DGAs), Partial Discharge Monitors (PDs), bushing monitors, and others. Integration with third-party monitoring systems can be done using standard communication protocols such as Modbus and DNP3.0.

Transformer Health Assessment

  • Remote monitoring and control
  • Estimated insulation lifetime
  • Overload capacity
  • Boiling temperature
  • Humidity in insulation
  • Real-time alarm and notifications
  • Easy integration

Transformer Monitoring
  • Oil temperature
  • Winding temperature
  • Load current
  • OLTC on-load tap-changer position
  • Liquid level
  • Vessel pressure

OLTC On-Load Tap-Changer Monitoring
  • Oil temperature
  • Oil level
  • OLTC position
  • Switch motor current
  • Wear contact
Direct Measurement Hot-Spot Winding
  • AT, BT & MT Winding
  • Nucleus hot-spot

Bushing Monitoring Integration
  • Leakage current
  • TanDelta
  • Power factor
  • Capacity

Partial Discharge Integration (PDM)
  • PD amplitude
  • PD discharge rate 
  • PD tendency

Cooling Control
  • Pump/fan status
  • Fan bank motor current
  • Cooling efficiency
  • Operation of the loading bank

Integration of Dissolved Gas Analyser (DGA)
  • DGA single-gas
  • MDGA multi-gas
  • Humidity

Certificates
  • ATEX
  • Lloyds
  • CE/RoHs
  • EAC & GOST certificate (Russian)

Varieties
  • Offshore
  • Ethernet redundancy: PRP
  • Enterprise monitoring software

Power supplyInput Power Requirement24 - 48 V DC
Power Consumption20 Watt
Analog/digital input moduleNumber of input channelsup to 8 channels
Input typesConfigurable from a wide range of input options, RTD, AC/DC Current, AC/DC Voltage, Potentiometer, No-load/powered contact switch
Channel accuracy± 0,5% full-scale input range
Input Channel Sample Rate10 Hz
Fiber optic modulesMeasurement range-80 °C ... +300 °C (cryogenic 4 °K range optional)
Resolution0,1 °C
Accuracy± 1,0 °C (± 0,2 °C in relative temperature)
Scan rate200 ms/channel (Optional: Faster scanning rates available)
Number of channels2 ... 24 channels
Analog output moduleNumber of output channels8 channels
Output channel format4 - 20 mA o 0 - 5 V DC / 0 - 10 V DC (Configurable for any measured/calculated value)
Output relay moduleNumber of outout channels8 Form C-Relay (5 A)
Programmable by userYes, from Rugged Connect Software
Data storage & configurationData Storage Capacity4 or 8 GB, Industrial Grade micro-SD, extendable to 2TB
Logging rateUser Configurable, 1 sec interval on USB
System fault indication1 System Fault Relay, with Local LED light
Config portUSB (to use with Rugged connect Windows software)
CommunicationSerial communication1 RS-485 (RS-232 optional converter)
CANBUS communication1 CANBUS port
Ethernet communication2 Ethernet Ports, configurable to RJ-45 or SFP (Gigabit Optical)
RedundancySupport PRP Redundancy
Supported protocol

Modbus, DNP 3.0, IEC 60870-104, IEC 61850, CANBUS

Other protocols provided on request

EMC type testingConducted & Radiated EmissionsICES-003 (2016), CISPR32 (2015), CISPR11 (2015)
ESD and EM Field ImmunityIEC 61000-4-2, C37.90-3, IEC 61000-4-3, C37.90.2
Fast Transient & Surge ImmunityIEC 61000-4-4, IEC 61000-4-5, C37.90.2
Magnetic Field ImmunityIEC 61000-4-8, IEC 61000-4-10
Immunity from Conducted DisturbancesIEC 6000-4-6, IEC 61000-4-16
Ripple, Dips & Damped OscillatoryIEC 61000-4-17, IEC 61000-4-18, IEC61000-4-29
SafetyIEC 60255-26 Certificate & CE
Environmental & mechanical conditionsOperating temperature-40 °C ... +72 °C
Operating humidity95% non condensing
Storage temperature-40 °C ... +85°C
DimensionsW 26,7 cm x H 7,2 cm x D 18,7 cm
WeightApp. 1.5 to 2.0 Kg. (based on number of configuration)
Protection classIP20

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