Tap Position Indicators : EE-601
Emco Electronics’ Tap Position Indicator Type EE-601 is used to indicate the tap position of the Power Transformer. Resistors are connected between each tap on the tap-changer. The connections from the minimum, maximum and wiper positions coming from the tap-changer are connected to the respective Min, Max and Com terminals marked on the Rear Panel of the TPI.

When the unit is powered on, the display indicates the current position of the Tap-changer. As the tap is increased, the display increases and decreases as the tap is decreased. Check the TPI by changing the tap from position 1 (min) to the max. position and confirm that it reads correctly.

When the wiper is open, the display indicates zero.

Features:-

Micro controller based architecture
Automatic detection of Number of Taps
1K Step Resistance or user defined
Test mode facility for testing displays
Potentiometer adjustment to compensate the lead resistance
Bright and clear 7 segment displays for long distance viewing
4-20 mA Input available (Optional)
95-260 V AC/DC Power Input
Robust & Rigid design, Plastic Casing for Safety

Remote Temperature Indicator: EE-602
Remote Temperature Indicators Emco Electronics’ ROTI / RWTI EE-602 are remote temperature indicators which indicate temperature proportional to resistance input. The temperature is indicated on a 3 digit 7 segment LED display . The 3 wires viz Min., Max., and Com. coming from 440E or 2K8 pot within the main analog type OTI / WTI are connected to Min., Max. and Com. T erminals on the unit as indicated on the rear panel. T est / Normal switch is used for testing the display.

Features:-

Microcontroller based architecture
Auto detection of 440E or 2.8K pot
Automatic self adjustment of 4-20mA Current
Test mode facility for testing displays
Bright and clear 7-segment displays for long distance viewing
4-20mA I/P, PT-100 Sensor I/P options available
4-20mA DC Current Output for SCADA (optional)

Automatic Voltage Regulating Relay : EE-301E
Emco Electronics’ Solid State Voltage Regulating Relay Type EE 301- E is used for regulating the secondary voltage of power transformer with on-load tap changer . The required dead-band settings are set by setting the L & R levels independently. The Time Delay setting on the front panel eliminates the relay operations for momentary fluctuations of the regulated voltage. Thus reducing the number of operations of the tap changer.

Features:-

LED indication for Raise UV and control Relay Operations
Lower pre signals
Digital readout for PT Supply and Dead band settings
Continuously adjustable Time delay settings
Automatic resetting after Voltage correction
Single pulse operation of Control Relays
Under voltage internal blocking

EMCO Electronics Transformer Monitoring System EE-101 is designed with high-end features for complete monitoring and control of Transformer and On Load Tap Changer. EE-101 is designed in 19” subrack for Rack mounting. 5.1” Graphics display with 16 Nos. of keys makes viewing and editing all parameters very easy. Actual status of Transformer at any instance can be known through Status LEDs. Programmable Inputs and Outputs make the customization of complete system a very easy task. International standard Communication protocols like IEC-61850 makes EE-101 a global product.

Features:-

* Monitoring and Control of Transformer Parameters like

> Voltage
> Current
> Tap Position
> Temperature
> Paralleling
> Life Consumption
> Freely programable Binary Input (BR, PRV, Lockout Relay Op. etc)
> Freely programmable Binary Output
> Freely programable Analog Input (DGA, H2 etc)
> Freely programmble Analog Output
> Modbus Protocol for Communication
> IEC61850 Protocol for Communication
> Data and Event logging
> Log Backup