# Hitachi Energy IMB Current Transformer (36–800 kV)

> current-transformer - Oil-paper insulated tank-type current-transformer family for high-voltage revenue metering, protective relaying, system control and power-flow indication.

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## Overview

- **Brand:** ABB / Hitachi Energy
- **Product family:** IMB oil-minimum current transformers
- **Category:** Grid Equipment & Power Quality / instrument-transformers-and-metering

## Manufacturer-stated technical envelope

- **Maximum system voltage:** ≤ 800 kV
- **Primary : secondary options:** Order-code configured
- **Secondary current:** Order-code configured
- **Thermal rating factor:** Order-code configured
- **Metering accuracy:** Order-code configured
- **Relay accuracy:** Order-code configured

## Standards

- IEC 61869 - exact applicable part and order-code ratings must be confirmed with Hitachi Energy

## Official sources

- https://www.hitachienergy.com/in/en/products-and-solutions/instrument-transformers/current-transformers-and-sensors/imb-36-800-kv

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer portfolio/family source. Confirm the exact order code, guaranteed ratings and project-specific options against the current OEM datasheet before procurement or an SLD study.

The stated values are family or catalogue-option limits. Select the exact order code and verify project-specific duties before procurement or release of an SLD design.