Power Grid Series Current Transformer

What Is Current Transformer ？

The ZHIMING LMZ-0.66 Series Power Grid Series Current Transformer is an indoor low-voltage instrument transformer designed for current measurement and electrical energy metering in AC circuits with a rated voltage up to 0.66kV and rated frequency of 50Hz. Manufactured using unsaturated epoxy resin casting with a fixed installation method, this LMZ-0.66 Current Transformer complies with IEC 61869 standards and is widely deployed in power distribution panels, switchgear, and metering cabinets. Its compact, resin-cast construction ensures reliable insulation performance and long service life in indoor electrical environments.

Code And Implication of the Current Transformer

Working Conditions of the Current Transformer

Parametry produktu

Parametr	Specyfikacja
Napięcie znamionowe	≤ 0.66kV
Częstotliwość znamionowa	50Hz
Insulation Type	Unsaturated epoxy resin cast
Installation Method	Indoor, fixed mounting
Applicable Standards	IEC 61869
Current Ratio (typical)	150/5A (customizable per order)
Accuracy Class	0.2S (customizable per order)
Rated Burden	10VA (customizable per order)

Why Choose ZHIMING's Current Transformer ?

Resin-Cast Insulation & Indoor Reliability

The LMZ-0.66 Current Transformer is fully encapsulated in unsaturated epoxy resin, providing excellent insulation, moisture resistance, and mechanical protection. This construction makes it an ideal Low Voltage Current Transformer for indoor switchgear and distribution panels where dust and moderate humidity are present.

Customizable Current Ratios & Accuracy

With flexible current ratio options (e.g., 150/5A) and accuracy classes up to 0.2S, the Power Grid Series Current Transformer can be configured to match your specific metering and protection requirements. Rated burden and bus width are also customizable at order.

IEC 61869 Compliance

Manufactured in accordance with IEC 61869-1 and IEC 61869-2, this LMZ-0.66 transformer meets international performance and safety benchmarks for instrument transformers, supporting your equipment's certification and market access requirements.

Cost-Effective Fixed Installation

With a simple fixed mounting design, minimal maintenance needs, and competitive factory pricing (MOQ 100 pieces, 7–15 day stock), the Power Grid Series Current Transformer delivers long-term value for panel builders, switchgear manufacturers, and electrical contractors.

FAQ

What is the LMZ-0.66 Current Transformer primarily used for?

The LMZ-0.66 Power Grid Series Current Transformer is designed for indoor current measurement and electrical energy metering in 50Hz AC circuits with a rated voltage up to 0.66kV. It is typically installed in power distribution cabinets, switchgear, and metering panels.

What current ratios are available for this Low Voltage Current Transformer?

Current ratios are customizable per order. The standard example ratio is 150/5A, but the manufacturer can configure other ratios to meet specific application needs. When ordering, specify the required current ratio, rated output (VA), and accuracy class.

What accuracy class does the LMZ-0.66 support?

The LMZ-0.66 Current Transformer supports accuracy classes including 0.2S for precision metering applications. The exact class is specified at the time of ordering based on your measurement requirements.

Can this transformer be installed outdoors?

No. The LMZ-0.66 Series is rated for indoor installation only, with an ambient temperature range of -5°C to +40°C, humidity ≤80%, and altitude up to 1000m. The atmosphere must be free from serious impurities and corrosive gases.

What information do I need to provide when ordering this Current Transformer?

When placing an order for the LMZ-0.66, provide the following: (1) product model and bus width, (2) current ratio, (3) rated output in VA, and (4) accuracy class. For example: LMZ-0.66, bus width 30mm, current ratio 150/5A, 10VA, Class 0.2S. Custom requirements should be discussed directly with the manufacturer.