ZGSBH15-Z(H) Series Amorphous Alloy Distribution Transformer (10 kV, 20 kV)

A combined‑type transformer (also known as an American‑style pad‑mounted substation) integrates the transformer core, high‑voltage load switch, protective fuses, and other components into a single sealed oil‑filled enclosure. It is equipped with a full suite of operational monitoring instruments, including pressure gauges, pressure relief valves, oil level indicators, and oil temperature gauges. Featuring reliable power supply, rational design, rapid and flexible installation, convenient operation, compact size, and low cost, the American‑style pad‑mounted substation is suitable for both outdoor and indoor applications and is widely used in municipal projects, grid modernization and upgrades, industrial parks, residential communities, commercial centers, and high‑rise buildings.

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Box-type Substation Series

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Product Description

　　Overview

　　A combined‑type transformer (also known as an American‑style pad‑mounted substation) integrates the transformer core, high‑voltage load switch, protective fuses, and other components into a single sealed oil‑filled tank. It is equipped with a full suite of operational monitoring instruments, including pressure gauges, pressure relief valves, oil level indicators, and oil temperature gauges. Featuring reliable power supply, rational design, rapid and flexible installation, convenient operation, compact size, and low cost, this type of substation is suitable for both outdoor and indoor applications and is widely used in municipal projects, grid modernization and upgrades, industrial parks, residential communities, commercial centers, and high‑rise buildings.

　　Product Features and Functions

　　1. Fully sealed, fully insulated design with no required clearance distances, ensuring reliable personal safety.

　　2. Compact in size and with a streamlined structure, it occupies only about one-third the footprint of conventional domestic transformer substations of the same capacity.

　　3. It can be used both in ring networks and at terminal points, with convenient and rapid switching, enhancing power supply flexibility and accelerating service delivery.

　　4. Energy-saving, low losses, low noise, low temperature rise, and strong overload capacity, among others.

　　5. The cable joint can handle a load current of 200 A and, in emergency situations, can be operated as a load switch, while also possessing the characteristics of an isolating switch—easy and flexible to operate.

　　6. Equipped with dual-fuse protection, ensuring safe and reliable operation.

　　7. The enclosure features an anti-corrosion design and a special paint finish, making it suitable for a wide range of harsh environments, such as highly polluted areas prone to heavy rainfall.

　　Technical Performance Parameters

　　ZGSBH15-Z(H) Series Amorphous Alloy Distribution Transformer (10 kV Class)

Rated Capacity Rated Power (KVA)	Rated voltage (kV)		Connection Group	No-load Electric current (%)	Loss (W)		Impedance Voltage (%)	Reference external dimensions (mm)			Reference weight (kg)
Rated Capacity Rated Power (KVA)	High pressure	Low pressure	Connection Group	No-load Electric current (%)	No-load	Load	Impedance Voltage (%)	long	wide	High	Body of the vessel	Heavy oil	Total weight
30	6.0 ±2×2.5% or 10 ±2×2.5% or 10.5 ±2×2.5%	0.4	Dyn11	1.5	33	630	4.0	2000	1250	2000	180	350	1365
50				1.2	43	910		2000	1250	2000	260	395	1455
63				1.1	50	1090		2000	1250	2000	310	440	1580
80				1.0	60	1310		2000	1500	2000	360	490	1530
100				0.9	75	1580		2000	1500	2000	400	535	1605
125				0.8	85	1890		2000	1500	2000	500	565	1735
160				0.6	100	2310		2000	1500	2000	580	600	1845
200				0.6	120	2730		2000	1550	2000	600	650	1960
250				0.6	140	3200		2000	1550	2000	780	700	2090
315				0.5	170	3830		2000	1650	2000	910	760	2325
400				0.5	200	4520		2000	1650	2000	1000	780	2695
500				0.5	240	5410		2000	1750	2000	1300	850	2830
630				0.3	320	6200	4.5	2000	1750	2000	1500	880	3060
800				0.3	380	7500		2000	1800	2000	1850	950	3860
1000				0.3	450	10300		2000	1800	2000	2080	980	4235

　　ZGSBH15-Z(H) Series Amorphous Alloy Distribution Transformer (20 kV Class)

Rated Capacity (kVA)	Rated voltage (kV)		Connection Group	No-load Electric current (%)	Loss (W)		Impedance Voltage (%)	Reference external dimensions (mm)			Reference weight (kg)
Rated Capacity (kVA)	High pressure	Low pressure	Connection Group	No-load Electric current (%)	No-load	Load	Impedance Voltage (%)	long	wide	High	Body of the vessel	Heavy oil	Total weight
30	20 ±2×2.5%	0.4	Dyn11	1.5	40	690	5.5	2000	1350	2000	200	360	1395
50				1.2	55	1010		2000	1350	2000	290	415	1485
63				1.1	65	1200		2000	1350	2000	350	460	1610
80				1.0	75	1440		2000	1600	2000	400	510	1730
100				0.9	90	1730		2000	1600	2000	440	555	1825
125				0.8	100	2080		2000	1600	2000	550	585	1935
160				0.6	120	2540		2000	1600	2000	630	620	1965
200				0.6	145	3000		2000	1750	2000	650	670	2045
250				0.6	165	3520		2000	1750	2000	830	720	2130
315				0.5	200	4210		2000	1750	2250	960	780	2455
400				0.5	240	4970		2000	1750	2250	1080	800	2725
500				0.5	290	5940		2000	1850	2250	1390	820	2940
630				0.3	370	6820	6	2000	1850	2500	1600	880	3200
800				0.3	450	8250		2000	1950	2500	1960	995	3980
1000				0.3	530	11330		2000	1950	2500	2180	1035	4385