11 415v 100kva dry type distribution transformer

Qianlai Electric specializes in manufacturing various types of power transformers, box-type substations, and electrical switchgear. With over 10 years of production experience, its products are exported to regions such as Africa, Central Asia, Southeast Asia, and South America.Relying on reasonable prices, excellent quality, and our familiarity with the technical requirements of power bureaus in various countries, we have won the trust of customers from all over the world.

Our 11 415v 100kva dry type distribution transformer have smaller partial discharge, low noise and strong heat dissipation capacity. Under forced air cooling conditions, it can operate continuously under 140% rated load. It is also equipped with an intelligent temperature controller, which features fault alarm, over-temperature alarm, over-temperature trip and blackout switch functions. It can be connected to computers via the RS485 serial interface for centralized monitoring and control.

How 11 415v 100kva dry type distribution transformer Operate Safely Under High Temperature Conditions

11 415v 100kva dry type distribution transformer are widely used in urban distribution networks, high-rise buildings and other scenarios due to their characteristics such as flame retardancy and maintenance-free operation. Their temperature protection settings are based on the insulation class as the core, and the typical parameters are shown in the following table:

Insulation class	Fan start temperature	Fan stop temperature	Over-temperature alarm temperature	Over-temperature trip temperature
F class	95℃	75℃	110℃	130℃
H class	105℃	85℃	130℃	150℃

Fan control logic: By setting a temperature difference control strategy of “starting at 95℃ / stopping at 75℃” (Class F), it can not only avoid frequent start-stop of the fan affecting the equipment life, but also start forced cooling before the winding temperature approaches the critical value, ensuring that the insulation system is in a safe range.

Trip threshold setting: The trip temperature of 130℃ (Class F) corresponds to the thermal aging critical value of its insulation material. When the temperature exceeds this threshold, the winding insulation life will decay exponentially. Emergency trip is the last line of defense to prevent thermal breakdown accidents.

Application tips: In actual operation, the alarm value can be fine-tuned within the range of ±10℃ according to factors such as load characteristics (such as the proportion of impact load) and ventilation conditions, but the adjustment of the trip threshold needs to be verified by insulation life assessment.

11 415v 100kva dry type distribution transformer Technical Parameter

Rated capacity	100kva
Rated voltage	6KV/10KV/33KV/35KV/40.5KV
model	SCB(10)-750/10/33/0.4KV or SCB(11)-750/10/33/0.4KV or SCB(12)-750/10/33/0.4KV or SCB(13)-750/10/33/0.4KV or SCB(14)-750/10/33/0.4KV or as per requirement
type	Dry type (cast resin)
No. of phase	3
Tapping range	±2X2.5%
Vector Group	Dyn11/Yyn0/as per requirement
Winding material	Copper/Aluminum
Core material	GRGO
Cooling method	AN/AF
standard	GB 1094/IEC 60076
Winding Temperature Rise	F insulation class(105K) H insulation class(125K)
No load loss	400±15% W or as per requirement
Load loss	1570±15% W or as per requirement
Short circuit impedance	4%
shell	Cold-Rolled Steel Sheet(IP20/IP23)/Stainless Steel