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Transformer Specialized Oven
BACK
Standards:
Applications:
Product Information:
The Transformer Specialized Oven is an industrial-grade constant temperature heating equipment specially designed for insulation drying and curing treatment of power transformers, current transformers, reactors, and other electrical equipment during manufacturing and maintenance processes.
Product Applications
Insulation Drying:
Used to remove moisture from transformer coils and insulation materials.
Varnish Impregnation Curing:
Used for heating, drying, and curing transformer coils after insulation varnish impregnation.
Thermal Assembly Process:
Used for preheating iron cores or specific components during thermal assembly operations.
Technical Parameters
| Parameter | Specification |
|---|---|
| Overall Dimensions (W×D×H) | W1560 × D1580 × H2200 mm |
| Inner Chamber Dimensions (W×D×H) | W1300 × D1400 × H1800 mm |
| Temperature Range | Room temperature to 250℃ (Adjustable) |
| Power | 18 kW |
| Power Supply | 380V, Three-phase five-wire system |
| Temperature Uniformity | ±3℃ (No-load test) |
| Air Circulation Method | Two-side circulating high-volume forced horizontal air circulation |
| Heating Method | Imported U-shaped stainless steel heating tubes with heat dissipation fins |
| Explosion-proof Device | An explosion-proof pressure relief door is installed at the rear of the equipment. When the internal pressure reaches a certain level, the door automatically opens and the equipment power supply is cut off. |
| Thermal Insulation | 100 mm thick high-temperature resistant aluminum silicate fiber cotton insulation; high-temperature resistant silicone sealing strips are added around the door edges |
| External Material | The outer shell is made of 1.2 mm cold-rolled steel sheet with high-temperature powder coating treatment (not ordinary spray painting) |
| Inner Chamber Material | 1.5 mm thick galvanized steel sheet |
| Control Protection Functions | PID self-tuning, automatic constant temperature control, automatic timing, over-temperature power-off alarm after reaching the set temperature, over-temperature power cut-off, emergency stop switch, leakage protection circuit breaker, motor overload protection, and other safety functions |
| Temperature Control System | Four units share one electrical control cabinet. Two units connected in parallel are equipped with one paper chart recorder (two recorders in total). |
Product Features
Precise Temperature Control:
Adopts a microcomputer-based intelligent PID control algorithm to achieve accurate temperature regulation.
High Temperature Uniformity:
The unique air duct design ensures extremely small temperature differences throughout the chamber.
Safety and Explosion Protection:
Equipped with over-temperature alarm, moisture exhaust system, and explosion-proof pressure relief door.
Strong Load Capacity:
The bottom rail trolley design facilitates convenient loading and unloading of heavy transformers.
FAQ
Q1: How long does it usually take to dry a transformer in this oven?
A1:The drying time mainly depends on the transformer capacity and insulation material. Generally, the drying process takes approximately 12 to 48 hours.
Q2: How does the oven ensure uniform heating of all parts of a large transformer?
A2:The equipment adopts a high-volume, powerful double-direction circulating air duct system to ensure uniform heat distribution. The overall temperature difference inside the chamber can be controlled within ±3℃.
Q3: How are moisture and volatile gases generated during the drying process handled?
A3:The top of the oven is equipped with an automatic/manual moisture exhaust valve and exhaust fan, which can periodically discharge moisture and volatile gases from the chamber to the workshop exterior.
Q4: What safety protection measures are provided to prevent overheating?
A4:The equipment is equipped with an independent over-temperature protection device separate from the main control system. Once overheating occurs, the heating power supply will be automatically cut off, and an audible and visual alarm will be activated.
