EMR Tap Changers Private Limited

Features a high-speed snap-action design that ensures reliable and consistent operation.

Fully compliant with IEC 60214-1 standards, ensuring international compatibility.

Available in both single-phase and three-phase configurations, supporting through-currents up to 4000 A*.

Rated insulation level up to Um = 300 kV, with special designs available for higher ratings.

Offers high operational safety using specialized switching mechanisms.

Built with a compact, robust, and modern design to deliver long-term, maintenance-free performance.

Incorporates a modular structure, allowing customization as per user-specific transformer designs.

Field design is optimized using smooth surfaces, soft edges, and advanced materials for safety and durability.

Multiple drive options are available, including:

• Manual Drive

• Motor Drive

• “Hands on Wheel” operation for user-friendly control.

Designed for easy and seamless installation in transformer units.

Type: OCTC

Current Ratings:

• Three-pole: 350 A, 500 A, 600 A

• Single-pole: 350 A, 500 A, 600 A, 800 A, 1000 A, 1200 A, 1500 A, 1800 A, 2000 A

Voltage Levels: 72.5 kV, 123 kV, 170 kV, 245 kV, 300 kV

Vector Options: Y (Star), D (Delta)

BIL Ratings (kV/kVp):

• 140/350 (72.5 kV)

• 230/550 (123 kV)

• 325/750 (170 kV)

• 395/950 (245 kV)

• 460/1050 (300 kV)

Maximum Rated Step Voltage: 6600 Volts

Maximum Operating Positions (Linear): 9 positions

Manual Voltage Regulation: Allows voltage adjustment only when the transformer is de-energized.

Simple Construction: Mechanically simple design, resulting in low cost and easy maintenance.

High Reliability: No moving parts during load operation ensures long life and minimal wear.

Used in Distribution Transformers: Commonly used in small to medium-sized transformers.

Tap Range: Typically available in ±2.5%, ±5%, or custom tap steps.

Safety Compliant: Built to comply with IEC and IS standards for insulation and switching performance.