DD28 Meter is aplicable for single phase active energy measurement, it is designed to meet IEC60521 standard for indoor and outdoor installation
1. Case
1.1 base: Steel sheet
Weather proof steel sheet
1.2 meter cover: It is made of ABS material, flame resistand, in black colour with glass window. Meter cover can also be made of transparent glass, weather proof, and transparent plastic.
1.3 terminal block: It is made of phenolic resin, flame resistant, in black color, voltage link can be inside the meter base or outside the meter base.
Terminals are made of brass having two screws for tightening the external cables
1.4 terminal block cover
Short steel cover rubber underside the cover assures insulation between the cover and the terminal block
Short ABS cover non flammability of ABS, cover conforms to requirements of IEC60521
Extended steel cover rubber underside the cover ensures insulation between the cover and the terminal block, access is available at each side of the terminal cover for external cables
2. Driving element
Current electromagnet
The overload compensating set mounted on the laminated silicon steel core assures the excellent load curve performance
Voltage electromagnet
The design of voltage electromagnet permits to withstand the impulse voltage of 6kv
3. Braking element
Braking element is made of monopolar magnet, its adjustment range comforms to requirements of IEC60521
4 Frame
The meter frame is made of aluminum alloy with sufficient strength, it is painted for effective protection against corrosion
5 Moving element
Worm gear on the rotor shaft is made of brass or optionally plastic one,
Anti creeping pin is fitted to the rotor shaft to prevent running with no load
Anti reverse device can be mounted in the meter if it is required
Upper bearing
With excellent friction resistant property the upper bearing pin is of polished stainless steel to guide the rotating of the disc
Low bearing (optional )
Double jewel bearing
Magnetic bearing with metal enclosure
Magnetic bearing with transparent enclosure the bearing enclosure is made of transparent polycarbonate
6. Register
The register is of cyclometer type, with frame made of aluminum alloy, digit drums are made of polycarbonate, UV radiation resistant, the register is fixed on the meter frame by two screws it is adjustable to assure good mesh of worm with the rotor shaft
Unidirectional register is available
7, name plate
Printing ink used for name plate is UV radiation resistant one
Technology data
1. Current 3(9)A 5(15)A 10(30)A 15(45)A 5(20)A 10(40)A 20(80)A 30(100)A
2. Over load capacity 300% 400%
3. Voltage 110V 120V 220V 230V 240V
4. Frequency 50Hz 60Hz
5. Power loss in voltage circuit 1.3W/6VA 50Hz 1.1W/5.5VA 60Hz
6. Power loss in current circuit less than 0.6VA
7. Running with no load 0.8-1.1Un
8. Starting current 0.5% Ib
9. AC voltage test 50Hz 1min 2KV
10. Impulse voltage test 1.2/50Us 6KV
Zhiming Group Co., Ltd., located along the sea in south zhjiang, wenzhou, liushi. Established in 1991, our factory mainly produces single phase, three phases mechanical electronic type kwh meters; Ge brand meter base, panel meter, low voltage shunt capacitors; High voltage shunt capacitor electronic components and etc.
In March 2001, we had passed ISO9001. "zhiming" brand products are now widely accepted by most clients. On the basis of hi-tech and modern management, our company is robustly developing and glowing up, marketing shares are more and more increased. In order to ensure and improve the quality, we have equipped with modern testing apparatus and excellent production technology and therefore continuously provided, with low price and best quality, dd28 dd17 dd862, dt862 series kwh meters, dds450 single phase electronic meters, ddsy ordtsy 450 electric with prepay fee. Dtsf 450 multi tariff kilo watt hour meter. Ge meter base, amper meter and voltage meter, bsmj low voltage shunt capacitors, bmh high voltage shunt capacitor, power relay, cj19 contactor for switching capacitors, AC contactors, mini circut breaker MCCB. Besides at maximum to meet with domestic marketing, our products are also exported southeast Asia, Russia and etc. Our company devote to building an integrated enterprise combined with tech research, industrial production and trading, on basis of "best quality, satisfactory services, hard research".
Under our topic of "true attitude, creation and innovation, perfect services", we honestly welcome all clients to make mutual development.
