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Huatuo groupKeep improving and focus on quality
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Huatuo groupKeep improving and focus on quality
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MHT-12 floor type metering box
Product Details
Product overview
Floor type metering box is a product that changes the high-voltage metering, switch and control box on the column into a cabinet structure, which is composed of ZW43 column circuit breaker, metering voltage transformer, metering current transformer, etc. The box body is made of stainless steel and is divided into inlet room, outlet room, instrument room and handle operation room.
Model meaning
| MHT | □ |
| Huatuo Group Floor Type Metering Box | Rated voltage: 12kV |
Working conditions
Ambient air temperature:-40 ℃ ~ 40 ℃;
Maximum daily temperature difference: 25 ℃;
Altitude: ≤ 1000m;
Pollution level: level IV;
No flammable, explosive hazard, chemical corrosion of the place;
This product is easy to install in the structure, beautiful appearance, the product occupies a small area, is the living area, industrial and mining enterprises and box-type change supporting the use of the perfect combination of products;
The high-voltage chamber cannot be opened when the equipment is charged, and the high-voltage chamber door can only be opened when the power is cut off, which is safe and reliable;
Installation of lighting in the incoming and outgoing rooms. Transparent observation windows are installed on the left and right sides above the instrument room to observe the inside of the incoming and outgoing rooms respectively. Personnel can directly open the door to check the bottom of the meter and operate the switches locally;
The transformer is vacuum-cast with fully enclosed epoxy resin, thus eliminating aging problems;
The demarcation switch part adopts ZW43 column circuit breaker and is equipped with protective current transformer, which realizes zero sequence, overcurrent and quick-break protection with intelligent controller, and can realize automatic removal of single-phase ground fault and automatic isolation of inter-phase short-circuit fault.
Technical parameters
|
Project |
Unit |
Parameter Value |
|
Rated voltage |
kV |
12 |
|
Rated frequency |
Hz |
50 |
|
Rated current |
A |
630 |
|
Rated power frequency 1min withstand voltage (relative to ground) |
kV |
42 |
|
Rated 1min withstand voltage (fracture) |
kV |
48 |
|
Peak rated lightning impulse withstand voltage (relative to ground) |
kV |
75 |
|
Peak value of rated lightning impulse withstand voltage (fracture) |
kV |
85 |
|
Short-time power frequency withstand voltage of auxiliary and control circuit |
kV |
2 |
|
Rated short-time withstand current and duration |
I/O |
20/4 |
|
Rated peak withstand current |
kA |
50 |
|
Degree of protection (enclosure) |
IP44 |
Key words:
MHT-12 floor type metering box
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