Product overview

GZDW DC power supply cabinet is used in large, medium and small power plants and substations, as the DC power supply required for high-voltage switch opening and closing, relay protection, automatic control, accident lighting, light and audio signals under normal operation and accident conditions, and can also be used in metallurgy, railways, mines, petrochemical, post and telecommunications, communications, medical and health, banks, hotels, high-rise buildings, computer networks and other industries. The microcomputer controlled DC power supply cabinet can be used for the DC power supply of power plants, substations and other industries that are unattended and remotely monitored.

This product conforms to standard JB/T5774-2000 General Technical Conditions and Safety Requirements for DC Power Supply Equipment of Power System.

Model and meaning

Normal service condition

● Altitude: no more than 2000m;

● Ambient temperature: -5℃ ~ +40℃;

● Relative humidity: no more than 90% (at 20±5°C );

Note: When ordering of this product is beyond the above conditions, please consult with our company.

Main function

● Complete specifications: This series of products has ten models and hundreds of specifications, which can fully meet the demand of large, medium and small power plants, substations and various industries for DC power supply;

● Reliable operation: AC dual circuit is included in automatic switching, and the product is equipped with two floating charging devices for mutual backup, which makes the system switching convenient;

● Stable operation: the product has good anti-interference performance, high precision and small ripple coefficient;

● Long battery life: the product can charge and float the battery in strict accordance with the battery charging curve to avoid overcharge or undercharge. The microcomputer controlled type has the battery detecting function;

● Multiple protection: the product can track and detect all working points, combine software and hardware protection, and the insulation detection device can check the bus insulation at any time;

● Sports communication: the microcomputer controlled DC power supply cabinet can communicate with the upper computer to achieve centralized monitoring and unattended operation.

Output DC voltage rating	24V	48V	110V	220V
Adjustment range of floating charge voltage	21-28	43-57	99-130	198-260
Adjustment range of equalizing charging voltage	27-31	54-62	125-140	198-286
Adjustment range of main charging voltage	21-36	43-70	99-162	187-310

Product model	Serial number description	Specification	Scope of application
GZDW230-□/□	Single battery pack, single bus section, two double-line output charging devices, no step-down circuit	10	Power plant or large substation
GZDW231-□/□	Single battery pack, single bus, two double-line output charging devices, no step-down circuit	10	Power plant or large substation
GZDW232-□/□	Single battery pack, dual bus section, two sets of double-line output floating charging devices	20	12kV-220kV substation and small and medium-sized power plants
GZDW233-□/□	Single battery pack, double bus, two double-line output floating charging devices	20
GZDW234-□/□	Single battery pack, double bus section, two sets of three-wire output floating charging devices	20
GZDW235-□/□	Single battery pack, double bus, two three-wire output floating charging devices	20
GZDW240-□/□	Double battery packs, single bus section, two sets of double-line output floating charging devices, no step-down circuit	10	Important power plants or large substations
GZDW241-□/□	Double battery packs, double buses, two sets of double-line output floating charging devices	12	12kV-220kV substation and small and medium-sized power plants
GZDW242-□/□	Single battery pack, double bus section, three sets of double-line output floating charging devices	10	Important power plants or large substations
GZDW243-□/□	Double battery packs, two buses, two sets of three-wire output floating charging devices	12	12kV-220kV substation and small and medium-sized power plants

Product model	Serial number description	Battery output voltage (V)	Rated current of controlled bus (S) (A)	Impulse current of closing bus(A)	Cabinet panel data
GZDW2-20/220	20	220	5	60	2
GZDW2-38/220	38	220	5	100	2
GZDW2-50/220	50	220	8	120	2
GZDW2-65/220	65	220	10	120	2
GZDW2-80/220	80	220	10	240	2
GZDW2-100/220	100	220	10	240	2
GZDW2-150/220	150	220	15	480	3-4
GZDW2-200/220	200	220	20	480	3-4
GZDW2-300/220	300	220	30	600	3-4
GZDW2-20/110	20	220	5	60	2
GZDW2-38/110	38	220	5	100	2
GZDW2-50/110	50	220	8	120	2
GZDW2-65/110	65	220	10	120	2
GZDW2-80/110	80	220	10	240	2
GZDW2-100/110	100	220	10	240	2
GZDW2-150/110	150	220	15	480	3-4
GZDW2-200/110	200	220	20	480	3-4
GZDW2-300/110	300	220	30	600	3-4