Overview of Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment

Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment is precision instruments designed for accurate measurement and reliable protection in high-voltage electrical systems. They safely step down high primary currents to standardized, low-level secondary outputs, enabling safe monitoring, metering, and control by connected devices. Essential for power transmission, distribution, and industrial applications, our transformers ensure system safety, efficiency, and stability.

Features of Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment

High Accuracy Class: Precision-engineered for dependable measurement in metering and protection circuits.

Robust Insulation: Advanced insulation materials (e.g., epoxy resin, oil-impregnated) ensure long-term reliability and safety under high dielectric stress.

Wide Current Range: Available in various ratios to accommodate diverse application requirements.

Low Power Loss: Optimized core design for minimal energy loss, enhancing overall system efficiency.

Excellent Linearity: Superior performance across a wide range of operating conditions.

Durable Construction: Built to withstand harsh environmental conditions, including moisture, pollution, and temperature fluctuations.

Specification of Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment

This product is a high voltage oil-immersed current transformer. It’s designed for outdoor electrical equipment. The transformer measures electric current. It steps down high current to safe, low levels. This allows meters and relays to work safely.

The transformer uses oil for insulation. The oil also cools the core and windings. The core is made from high-grade electrical steel. This ensures accurate measurements. The windings are copper. They are carefully insulated. The entire assembly sits inside a strong, sealed tank. The tank is usually aluminum. Aluminum resists rust. This is important for outdoor use.

Voltage ratings are high. Common primary voltages are 72.5kV, 123kV, 145kV, 170kV, and 245kV. These match common power system voltages. The secondary current is usually 5A or 1A. This is standard for meters and protection devices.

Accuracy is critical. The transformer meets strict accuracy classes. Common classes are 0.2 and 0.5. This means very small measurement errors. The accuracy holds over a wide range. It works from light load to heavy load. The transformer also handles short-circuit currents safely. It protects connected equipment.

The transformer has specific temperature limits. The top oil temperature shouldn’t exceed 105°C. The average winding temperature shouldn’t exceed 65°C rise over ambient. Ambient temperature is usually -40°C to +40°C. The transformer works reliably in these conditions.

It meets ANSI/IEEE standards. Key standards are C57.13 and IEEE C57.13.1. These cover performance and testing. Dielectric tests are performed. These include high voltage tests. They ensure insulation strength. Impulse tests check resistance to lightning strikes.

The transformer has defined burdens. Burden is the load it can drive. Standard burdens are B-0.1, B-0.2, B-0.5, B-1.0, B-2.0, and B-4.0. The correct burden ensures accuracy. Terminal markings are clear. H1 and H2 are primary terminals. X1 and X2 are secondary terminals. Polarity is marked correctly. This is vital for proper connection.

The transformer is built tough. It withstands outdoor weather. Rain, snow, wind, and sun won’t damage it. The sealed tank prevents moisture entry. Oil level is visible through a gauge. A pressure relief device is included. This provides safety.

Applications of Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment

Hot high voltage oil-immersed current transformers are vital for outdoor electrical systems. They measure large currents safely. They step down high currents to levels instruments can handle. This is crucial for accurate monitoring and control.

These transformers are built tough for outside use. They sit in substations. They connect to transmission lines. They work alongside circuit breakers and disconnect switches. Their oil insulation provides excellent protection against high voltage. This oil also helps cool the core and windings during operation.

Their main job is metering. They provide precise current readings for billing purposes. Power companies rely on this accuracy. They also feed protective relays. These relays watch for dangerous problems like short circuits. When a fault happens, the transformer signal tells the relay to trip breakers. This stops damage quickly. It protects expensive equipment. It keeps the grid stable.

Operators also use these transformers for system monitoring. They give real-time data on power flow. This helps manage the network efficiently. It prevents overloads. The oil-filled tank makes them reliable outdoors. It seals out moisture and dirt. This withstands harsh weather. Rain, snow, heat, and cold don’t stop them.

Installation is straightforward. They mount directly on high voltage equipment structures. Maintenance needs are low. They are designed for long service life. Their robust construction ensures dependable operation year after year. They are a key part of safe and efficient high voltage power distribution.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of Hot High Voltage Oil-Immersed Current Transformer for Outdoor Electrical Equipment

FAQ 1: What is a Hot High Voltage Oil-Immersed Current Transformer?
This device measures high electric currents in power systems. It steps down dangerous currents to safe levels. The transformer sits inside a tank filled with insulating oil. The oil handles heat and prevents electrical faults. Outdoor electrical equipment uses this type. It is built tough for harsh weather.

FAQ 2: Where is this transformer installed?
Install it outdoors near high-voltage equipment. Common places are substations, power lines, and switchyards. It connects to circuit breakers or disconnect switches. The oil-immersed design suits exposed locations. It handles rain, wind, and temperature changes well.

FAQ 3: Why use oil inside the transformer?
Oil cools the core and windings during operation. It stops overheating under heavy loads. Oil also insulates high-voltage parts. This prevents short circuits. Oil lasts longer than air or gas in outdoor settings. It keeps the transformer stable and safe.

FAQ 4: What safety features does it have?
The tank is sealed to block oil leaks. Pressure relief valves burst if internal pressure spikes. Oil level indicators show if oil drops too low. Grounding terminals prevent electric shocks. These features protect workers and equipment.

FAQ 5: How do I maintain this transformer?
Check oil levels monthly. Look for leaks or rust on the tank. Test oil purity yearly for contamination. Clean dirt off bushings and terminals. Follow the maker’s service schedule. Good maintenance avoids breakdowns and extends its life.