he heat resistance grade of H class insulation three phase pad transformer is 180℃. This insulating material is elastic, not prone to aging, resistant to shrinkage and compression, and can maintain good electrical and mechanical properties at high temperatures.
Introduction:
H class insulation three phase pad transformer is a kind of power distribution equipment using high temperature resistant insulation materials, usually used in outdoor box-type substations or indoor power distribution systems. Its core features are oil-free, fireproof, and environmentally friendly, and it is suitable for commercial centers, data centers, hospitals, mines and other places with high requirements for safety and reliability.

Technical parameters:
The rated capacity range is relatively large. H class insulation three phase pad transformer can from 30kva to 2500kva. Higher capacity can be customized.
The rated voltage is generally, and the high voltage is manifested as 10/20/35kV. The low-voltage voltage is generally 400/220/230V.
The insulation class is H grade and it can withstand high temperatures up to 180℃.
The cooling method can be natural cooling or forced air cooling.
The short-circuit impedance is 4% to 6%.
The noise level generally needs to be below 55dB.

Main features:
1. High insulation grade (H class)
H class insulation three phase pad transformer can withstand a high temperature of 180℃ and operate normally even in harsh environments.
Compared with F-class (155℃), it has stronger temperature resistance and better overload capacity.
2. Safe and environmentally friendly
Oil-free design, no risk of fire or explosion, meeting fire protection standards.
It does not contain harmful substances such as PCB and is recyclable.
3. Strong protective performance
Pad-Mounted usually adopts a fully sealed stainless steel or anti-corrosion coated box body, with a protection level of IP65, which is moisture-proof, dust-proof and anti-corrosion.
Built-in temperature control system and forced air cooling device.
4. High efficiency and energy saving
Low-loss design, with no-load loss and load loss exceeding national standards.
It can be matched with an intelligent monitoring system to monitor parameters such as temperature and load in real time.
5. Easy installation
The box-type structure design makes transportation convenient and installation very easy.

Packaging and transportation:
International transportation
The packaging must comply with the local standards of the shipping country to avoid unsuccessful customs clearance due to packaging issues. In serious cases, it could lead to a return shipment.
Extreme weather
In case of bad weather, enhanced protection is needed. In high-temperature weather, avoid direct exposure of the transformer to the sun.
Extra-large and overweight equipment
When the equipment is large or overweight, it is necessary to inform the transportation company and coordinate with the relevant personnel of the road administration. All necessary procedures need to be completed properly to ensure the safety of transportation.