Asian Power

Protection Relay

HighPROTEC MCDTV4

Transformer Differential Protection

The MCDTV4 is a transformer protection device with phase and earth differential protection and with a large backup protection package. The device is specially designed to protect medium and large HV / MV / LV  transformers in distribution and substation systems. The MCDTV4 is additional equipped with grid coupling
functions for Distributed Energy Resources, especially for generator power plants.

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Overview

The transformer differential protection relay MCDTV4 offers an all-in-one solution for HV, MV and LV transformers and it offers much more than just a differential protection package. Furthermore it can detect critical operation states based on voltage measurement (e.g. Overexcitation). The MCDTV4 provides in addition to that an Interconnection package. This can be used for mains protection at the point of common coupling (e.g. for directional reactive power undervoltage protection). The integrated backup protection package enables the MCDTV4 to act as backup protection (e.g. for downstream breakers). Additional features like demand management are available without extra charge. The protection functions of the MCDTV4 have been adapted to comply with the requirements of the VDE‑AR‑N‑4110:2018. The MCDTV4 is available in 384 variants, that cover all combinations of properties that you might need or not need for your application. Each variant is uniquely specified by a typecode of form MCDTV4-2xxxxx (i.e. 5 digits/letters following the ‘-2’). Check the Order Form (depicted below, or in the brochure DOK-FLY-MCDTV4-2E or in the user manual MCDTV4-3.6-EN-MAN) for a complete overview.

Features

  • Comprehensive Frequency Protection Package
  • Recorders
  • Logic equations for protection
  • Interconnection Package
  • Backup Protection
  • PC Tools
  • Commissioning Support
  • Communication Options
  • IT Security
  • Time Synchronisation

Details

Current Inputs

8 (1 A and 5 A) with automatic CT Disconnect

Voltage Inputs

4 (0 … 800 V) or 4 (0 … 300 V)

Digital Inputs

Switching thresholds adjustable via software

Analog Inputs (Type B)

0 … 20mA / 4 … 20mA / 0 … 10V

Analog Outputs (Type B)

0 … 20mA / 4 … 20mA / 0 … 10V

Power Supply

24 VDC – 270 VDC / 48 VAC – 230 VAC (−20/+10%)

Terminals

All terminals plug type

Mounting

Door Mounting

Type of enclosure

IP54

Dimensions of housing (W x H x D)

19“ Flush Mounting:
212.7 mm × 173 mm × 208 mm
8.374 in. × 6.811 in. × 8.189 in
Door Mounting:
212.7 mm × 183 mm × 208 mm
8.374 in. × 7.205 in. × 8.189 in

Weight (max. components)

approx. 4.7 kg / 10.36 lb

Product Certification

A Manufacturer’s Certificate of Origin, also known as a Manufacturer’s Statement of Origin, is a specified document certifying the country of origin.








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