ODM SG/ZSG/SBK Series Three-Phase Dry-Type (Rectifier) Transformer Supplier, Manufacturers

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ODM SG/ZSG/SBK Series Three-Phase Dry-Type (Rectifier) Transformer Supplier, Manufacturers

The SG series three-phase dry-type transformers are widely used in CNC systems, suitable for various three-phase power supply applications with AC 50~60Hz and input/output voltages not exceeding 500V. Customization options include input/output voltage levels, connection groups, number and position of tapping taps (usually ±5%), distribution of winding capacities, configuration of secondary single phase windings, integration of rectifier circuits, and requirements for external enclosures. All designs can be meticulously manufactured according to user specifications. The ZSG series three-phase dry-type rectifier transformers are designed for rectifier equipment, used for charging, voltage regulation, and DC power supply after rectification.

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Product Description

Type & Meaning

SG Type Dry-type Transformer Designation

S	Three-phase
G	Dry-type Transformer
□	Rated Capacity (kVA)
□	Voltage Class (kV)

Z	Rectifier
S	Three-phase
G	Dry-type Transformer
□	Rated Capacity (kVA)
□	Voltage Class (kV)

SBK Control Dry-type Transformer Designation

S	Three-phase
BK	Dry-type Transformer
□	Rated Capacity (kVA)
□	Voltage Class (kV)

Product Display

SG Three Phase Dry Rectifier Transformer

Outline and Installation Dimensions

The outline and installation dimension drawings of SG, ZSG, and SBK are shown in the following table and Figures 1, 2, and 3:

Outline and Mounting Dimensions Schematic 1

Model	Output Voltage		Connection Group Number	Overall Dimensions (mm)						Mounting Dimensions				K×J
	Input	Output		Open Type			Protected Type			Open Type		Protected Type
	Input	Output		Bmax	Dmax	Emax	Bmax	Dmax	Emax	A±5	C±5	A±5	C±5
SG, ZSG, SBK-0.15KVA	660 400 380 200	380 220 110 36	Y/yn(oY/Yo) Y/d(Y/△) D/y(△/Y) Y/d(△/△)	200	105	140	260	180	160	125	77			8×18
SG, ZSG, SBK-0.3KVA				180	110	180	260	180	160	75	70
SG, ZSG, SBK-0.5KVA				180	115	180	260	200	120	75	75
SG, ZSG, SBK-0.75KVA				230	130	200	260	250	260	110	85
SG, ZSG, SBK-1KVA				230	140	200	315	200	260	110	90
SG, ZSG, SBK-1.5KVA				230	155	200	355	290	280	110	105			10×12
SG, ZSG, SBK-2KVA				270	165	250	355	290	280	180	130
SG, ZSG, SBK-2.5KVA				270	175	250	370	290	300	180	140
SG, ZSG, SBK-3KVA				270	185	250	370	290	300	180	150
SG, ZSG, SBK-4KVA				300	180	285	510	400	550	200	140	420	220
SG, ZSG, SBK-5KVA				300	200	285	510	400	550	200	155	420	220
SG, ZSG, SBK-10KVA				370	210	240	560	430	600	265	160	470	230
SG, ZSG, SBK-15KVA				420	245	390	600	440	620	310	180	580	240
SG, ZSG, SBK-20KVA				540	320	450	650	440	650	340	185	770	300	Φ12
SG, ZSG, SBK-30KVA				540	380	480	870	500	780	340	210
SG, ZSG, SBK-40KVA				750	350	520	960	550	810	420	170	870	350
SG, ZSG, SBK-50KVA				750	350	520	960	550	810	420	180	870	350
SG, ZSG, SBK-60KVA				800	450	650	1000	810	810	420	195	900	350
SG, ZSG, SBK-80KVA				800	450	650	1000	810	810	420	205	900	350
SG, ZSG, SBK-100KVA				860	450	650	1050	810	810	420	220	960	350
SG, ZSG, SBK-125KVA				860	500	700
SG, ZSG, SBK-160KVA	950	600	800
SG, ZSG, SBK-200KVA	1000	680	850
SG, ZSG, SBK-250KVA	1050	700	850

Note:

1. Dimensions not specified in blanks are to be determined per user requirements and are for reference only. Products with output current exceeding 3000A are custom-positioned, with dimensions corresponding to their specifications.

2. The rated input and output voltages listed in the table can be freely combined as required.

3. The voltages and dimensions listed in the table can be negotiated and determined according to user requirements.

Outline and Mounting Dimensions Schematic 2

Frequently Asked Questions

What are the primary differences between SG, ZSG, and SBK transformers?

SG represents standard three-phase dry-type transformers, ZSG is engineered specifically as a rectifier transformer system, and SBK functions primarily as an industrial control dry-type transformer.

Can the input and output voltages be customized for specific grid requirements?

Yes. The standard listed input (660V, 400V, 380V, 200V) and output (380V, 220V, 110V, 36V) configurations can be combined freely or fully customized to meet site-specific engineering requirements.

What is the difference between Open Type and Protected Type enclosures?

Open Type units are designed for installation within enclosed electrical control cabinets without independent shielding. Protected Type units include an external enclosure that safeguards internal windings against environmental contaminants and contact hazards.

How are dimensions determined for high-capacity applications over 3000A?

For applications where the operating output current exceeds 3000A, products are custom-engineered. Dimensions, cooling clearances, and terminal placements will be determined directly based on the project specification sheet.

What standard connection group configurations are supported?

These series support standard vector wiring schemes including Y/yn (oY/Yo), Y/d (Y/△), D/y (△/Y), and Y/d (△/△) to match varying phase balance and harmonic requirements.

ODM SG/ZSG/SBK Series Three-Phase Dry-Type (Rectifier) Transformer Supplier, Manufacturers

Product Description

Type & Meaning

Product Display

Outline and Installation Dimensions

Frequently Asked Questions

What are the primary differences between SG, ZSG, and SBK transformers?

Can the input and output voltages be customized for specific grid requirements?

What is the difference between Open Type and Protected Type enclosures?

How are dimensions determined for high-capacity applications over 3000A?

What standard connection group configurations are supported?

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