Due to its massive voltage and current capacity, the High Tension Potential Transformer, commonly referred to as an HT Potential Transformer, is suitable for various residential and industrial applications. Its main use is in the electricity sector, though it is also present in transportation, telecommunications, and various other areas. It consists of two groups of coils that generate a magnetic field when current flows through them. The resulting magnetic field induces the voltage in the coils and produces an alternating current within them. For safety and measurement purposes, it allows for accurate conversion of higher voltage levels to lower ones.
Types of HT Potential Transformer:
As HT potential transformer suppliers in Sharjah, we offer various types as given below:
- Electromagnetic HT Potential Transformers: This is the most used type of HT potential transformer. They are just like a standard power transformer except that they use the principle of electromagnetic induction to induce a voltage from the high voltage cable to be placed in the secondary winding and fed out to measuring instruments or protective relays.
- Capacitive HT Potential Transformers: These are used where electromagnetic PTs are too large and expensive in EHV systems. The capacitive voltage divider is used to reduce the high voltage to a low level which is then connected to a common electromagnetic transformer. This results in making CPTs economical for EHV systems. They also are less prone to Ferro resonance, a condition that can sometimes cause voltage instability in some high-voltage networks.
- Inductive HT Potential Transformers: These PTs work on the principle of an inductive voltage divider. They use an inductive voltage divider to reduce the voltage of the high-voltage circuit to a level that can be measured. Inductive PTs are not as common as electromagnetic PTs or capacitive PTs, but they can be used in special applications where their characteristics provide advantages. Inductive HT potential transformers are highly important components of high-voltage electrical systems because they allow safe and accurate voltage measurement for various purposes, including monitoring, protection, control, and metering.
Technical Specifications of HT Potential Transformer:
We have attached a technical datasheet containing specifications of each type and detailed information!
Specifications |
Electromagnetic HT Potential Transformer |
Capacitive HT Potential Transformer |
Inductive HT Potential Transformer |
Primary Voltage |
3.3 kV - 765 kV |
110 kV - 765 kV |
3.3 kV - 33 kV |
Secondary Voltage |
110V, 120V |
110V, 120V |
110V, 120V |
Voltage Ratio |
10000/110V |
220000/110V |
10000/110V |
Accuracy Class |
0.2, 0.5, 1, 3 |
0.5, 1, 3 |
0.2, 0.5, 1, 3 |
Frequency |
50HZ |
50 HZ |
50 HZ |
Connection |
Wye, Delta |
Wye |
Wye, Delta |
Features |
Robust |
Economical |
Precision Measurement |
Applications |
Electrical Systems |
Industrial |
Power Distribution Systems |
Features of HT Potential Transformer:
Being HT potential transformer manufacturers in Sharjah, we use advanced technology and methods during the manufacturing process. Here are some features of it.
- High Voltage Level: It can operate with a higher potential level than typical transformers, thereby making it particularly suitable for industrial applications that significantly require electrical power, such as the mining and oil & gas industries.
- Wide Range of Types: Our range includes a wide variety of High Voltage Potential Transformers, HT Current Transformers, and Potential Transformers.
- Suitable for Any Location: These can be installed in extreme conditions, such as at sea level or beneath lakes, where other transformers would fail to work properly due to problems with corrosion or heat transfer.
- No Moving Parts: The potential transformer contains no moving parts to deteriorate due to the potential vibrations caused by heavy machinery moving around the operational area.
Benefits of HT Potential Transformer:
As HT potential transformer suppliers in Dubai, we supply this transformer with the following benefits.
- Safety: They allow safe measurement of high voltages without any contact with the conductors at the high voltage level. This eliminates the threat of electric shock to personnel.
- Accuracy: They provide accurate voltage values, which is essential in monitoring a power system, ensuring that equipment is running properly, and protecting the grid.
- Galvanic Isolation: HT Potential Transformers provide electrical insulation between the high-voltage circuit and measuring devices, thus making them safer.
- Relay Protection: They provide the voltage signals meant for the protection of relays. The relays measure the voltage and can trip circuit breakers to disconnect faults, thus protecting the system from damage.
Applications of HT Potential Transformer:
Our HT/High tension Potential Transformers are used in power systems to offer accurate and reliable measurements of high voltages for various applications, as discussed below.
- High Voltage Transmission Lines: Used with ammeters and wattmeters to measure voltage, current, and power in high-voltage transmission lines. They energize protective relays when a fault occurs on a high-voltage line.
- Control Circuits: Our HT potential transformers are used to supply voltage signals to control circuits. The control circuits consist of automatic voltage regulators, reactive power compensators, and other numerous control systems.
- Device Testing: They are applied in testing high-voltage devices, such as transformers and circuit breakers. They measure voltage and current during the tests.
- High Voltage Power Systems: These transformers isolate the communication systems from high-voltage power systems to avoid interference with communication signals.
- Electrical Devices: They are used in research to measure high voltages and currents in laboratory experiments and to calibrate a range of electrical devices.
As acknowledged HT potential transformer manufacturers in Dubai and suppliers in Dubai, Sahara Transformers has established itself as a leading brand in the transformer sector. Over the past few years, the company has experienced growth and outperformed all rivals. We have gained expertise in producing and providing various types of high-performance transformers. Our HT potential transformer in Dubai is highly valued by customers for its quality and characteristics.