Dry-type Transformer Model List

Dry-type transformer: It relies on air convection for cooling, and is generally used for local lighting and electronic circuits.

Transformers such as mechanical equipment, in the power system, general steam turbine transformers, boiler transformers, ash removal transformers, dust removal transformers, desulfurization transformers, etc. are all dry-type transformers, with transformation ratios of 6000V/400V and 10KV/400V, used for rated voltages of 380V Load.

1500 kVA Transformer Dry Type Distribution 2500 kVA Transformer

Simply put, a dry-type transformer refers to a transformer whose core and windings are not immersed in insulating oil.

Compared with oil-type transformers, because dry-type transformers do not have oil, there are no problems such as fire, explosion, pollution, etc. Therefore, electrical codes and regulations do not require dry-type transformers to be placed in a separate room.

Especially with the new series, the loss and noise have been reduced to a new level, creating conditions for the transformer and low-voltage panel to be placed in the same power distribution room.

Other alphabetical order and meaning of dry-type transformer product model:

For example, (SCB10-1000KVA/10KV/0.4KV):

S means that this transformer is a three-phase transformer, if S is changed to D, it means that this transformer is single-phase.

The meaning of C means that the windings of this transformer are resin casting solids.

B means foil winding, if it is R, it means winding winding, if it is L, it means aluminum winding, if it is Z, it means on-load voltage regulation (copper is not marked).
The meaning of 10 is the design serial number, also called the technical serial number.
1000KVA means the rated capacity of this transformer (1000kVA).
10KV means primary rated voltage, and 0.4KV means secondary rated voltage.

Dry-type transformer model

①Divided from the insulating medium: SCB series epoxy resin cast dry-type transformers, the insulating material is epoxy resin; SGB series H-class insulating non-encapsulated dry-type transformers, the insulating material is Nomak paper DuPont paint.

②From the core material: silicon steel sheet iron core dry-type transformer SCB, SGB series; amorphous alloy iron core series dry-type transformer: SCBH, SGB series.

③From the energy-saving sequence: SCB9 SCB10 SCB11 SCB13 SCBH15, SGB9 SGB10 SGB11 SGB13 SGBH15 series, etc.

Dry-type transformer; for example, (SCB10-1000KVA/10KV/0.4KV): S means that the transformer is a three-phase transformer, and if S is changed to D, it means that the transformer is single-phase. The meaning of C means that the windings of this transformer are resin casting solids. B means foil winding, if it is R, it means winding winding, if it is L, it means aluminum winding, if it is Z, it means on-load voltage regulation (copper is not marked).

The meaning of 10 is the design serial number, also called the technical serial number. 1000KVA means the rated capacity of this transformer (1000kVA). 10KV means primary rated voltage, and 0.4KV means secondary rated voltage.

Other alphabetical order and meaning of power transformer product model:

1) Winding coupling method, meaning points: ** (not marked); self-coupling (O means).
(2) Phase number, meaning points: single-phase (D); three-phase (S). Electrician: www.dgjs123.com
(3) Insulating medium outside the winding, meaning points; transformer oil (not marked); air (G): gas (Q); molded solid casting type (C): wrapping type (CR): flame-retardant liquid (R).
(4) Types of cooling devices, meaning points; natural circulation cooling device (not marked): air cooler (F): water cooler (S).
(5) Oil circulation mode, meaning: natural circulation (not marked); forced oil circulation (P).
(6) Number of windings, meaning points; double winding (not marked); three winding (S); double split winding (F).
(7) Voltage regulation method, meaning points; no excitation voltage regulation (not marked): load regulation and suppression (Z).
(8) Coil wire material, meaning points: copper (not marked); copper foil (B); aluminum (L) aluminum foil (LB).
(9) Core material, meaning; electrical steel sheet (not marked); amorphous alloy (H). (10) Special purpose or special structure, meaning points; sealed (M); for series connection (C); for starting (Q); for lightning protection (B); for capacity adjustment (T); high impedance (K) Ground station traction (QY); low noise (Z); cable lead out (L); isolation (G); capacitor compensation (RB); oil field power lighting (Y); factory transformer (CY); full Insulation (J); Synchronous motor excitation (LC).

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