Product Description
A High Voltage Metering Box, also known as a High Voltage Electricity Metering Cabinet or HV Metering Panel, is an essential component in the electrical infrastructure, particularly in industrial and utility applications where high voltage electrical power distribution and monitoring are required. It is designed to safely house and facilitate the measurement of electrical parameters such as voltage, current, power factor, and energy consumption in high voltage electrical systems.
The main voltage and current transformer wires are extended for connection via conductive rods inside the porcelain casing. These transformers are mounted on a pallet, which is then lifted onto the tank lid using support rods, immersed in transformer oil. Additionally, the high-voltage and secondary lead bushings are fitted onto the tank cover, and an oil drain plug with a grounding bolt is secured to the side of the tank.
Functions
1. Metering Equipment: They contain specialized meters and transducers capable of accurately measuring high voltage (typically above 1,000 volts) and high current electrical flows. These may include digital multifunction meters, current transformers (CTs), and potential transformers (PTs) to step down the voltage and current to safer levels for measurement.
2. Isolation and Protection: The metering box often includes isolation switches or disconnectors and protection devices like fuses or circuit breakers to protect the measuring instruments from overloads and short circuits.
3. Data Communication: Modern high voltage metering boxes may be equipped with communication interfaces (like Modbus, Ethernet, or wireless options) for remote monitoring and data collection. This allows utilities and facility managers to track energy usage, detect anomalies, and optimize the electrical system's performance.
Advantages
1. Safety: Designed with insulated and earthed enclosures to protect against accidental contact with live parts.
2. Accuracy: Utilizes precision meters to ensure the readings reflect actual energy usage without significant errors.
3. Accessibility: Provided with secure yet accessible compartments for easy meter reading and maintenance.
4. Customizability: Configurable to accommodate various voltage and current ratings, and can be integrated with communication devices for remote monitoring.
5. Environmental Protection: Weatherproof and resistant to dust and moisture, ensuring reliable operation in outdoor and harsh environments.
Applications
High voltage metering box helps monitor the energy usage, ensuring efficient energy management and facilitating accurate billing by utilities for Industrial Plants, Commercial Buildings, Utility Substations, Renewable Energy Plants, Data Centers, Infrastructure Projects including Highways, railways, and airports.
Service Environment
1. Ambient temperature: -25°C to +40°C
2. Altitude: ≤1000 meters.
3. Max. air relative humidity90%(±25ºC);
4. Max. Ground ramp degree 3°;
5. The earthquake: the horizontal acceleration≤0.3m/s2 , the vertical acceleration≤0.15m/s2
6. The installation site shall be free from explosion danger, fire, chemical corrosion and violent vibration;
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
Please check below quick links for other product types.
Product Parameters
The rated voltage can be customized as customers' requirements. For instant communication, please click here.
| Rated Voltage Ratio (V) |
Rated Current Ratio (A) |
Voltage Transformer Rated Output (VA) |
Current Transformer Rated Output (VA) |
Rated Insulation (KV) |
| 3000/100 |
5-300/5 |
20 |
25 |
10 |
10 |
3.6/24/75 |
| 6000/100 |
5-300/5 |
20 |
25 |
10 |
10 |
7.2/32/75 |
| 6300/110 |
5-300/5 |
20 |
25 |
10 |
10 |
7.2/32/75 |
| 10000/100 |
5-300/5 |
25 |
25 |
10 |
10 |
12/42/75 |
Detailed Photos
- Electricity Meter: Measures the amount of electricity consumed.
- Main Breaker or Fuse: This is a safety device that can cut off the electrical supply to the premises in case of overloads or short circuits.
- Terminal Blocks or Lugs: Used for connecting the incoming power lines from the utility grid to the meter and from the meter to the service entrance conductors that lead into the property.
- Service Entrance Conductors: These are the wires that carry electricity from the meter to the main electrical panel within the building.
- Grounding Terminal: Connects the meter box and the electrical system to a grounding electrode, ensuring that any stray electrical current is safely directed into the ground.
- Seal, junction box, weatherproof cover, mounting brackets.
Packaging & Shipping
Company Profile
Qinghao Transformer is a reliable and specialized power transmission and distribution equipment manufacturer for over 20 years with a registered capital of USD8,000,000.
Except for ISO9001, ISO14001, ISO45001 certificates, we are also TUV audited suppliers with AAA enterprise and AAA products honors. All products comply with GB and IEC related standards, which mainly include oil immersed distribution transformer, dry-type transformer, amorphous alloy transformers, combined transformer substations, circuit breaker, cable branch box, high low voltage switchgear cabinet distribution equipment.
With the concept of "World-class transformers, smart solutions", Qinghao Transformer is devoting to provide high-quality power for customers.
Let us cooperate with a brighter future!
FAQ
Q: Are you a Manufacturer or Trading company?
A: We are the original factory with approved export license.
Q: What's your warranty terms?
A: We offer 24 months warranty time.
Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.
Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.
Q: How can I trust you?
A: We are TUV aduited supplier with many patent certificates, type test reports, CQC, CE, KEMA, ISO certificates. We can provide on site services for many areas like South America, Indonesia, etc.
Certificates
Business Partners
){kind=link}