京仪北方公司

DD90 DD90L型单相长寿命电能表

Single-Phase Watt-hour Meter

结构特点

Structure Characteristics
◆ Light load, phase can be modified to standstill.
◆ Using creeping proof hole, modification is not need when
starting or creeping.
◆ Magnetic bearing is used, no abrasion in the axis direction, graphite bearing used in redial direction for self-lubrication
and no resonance, little abrasion and friction, long life and
stable assured.
◆ The coil is poured by rosin with moisture-proof and shock-
resistance.
◆ The font printed in the Model DD90L was specially treated
and would be ultraviolet radiation-resistance and fade-proof.
◆ The shell of Model DD90L was treated to class Ⅱprotection
isolation.
◆ The meters are manufactured in accordance with the standard of GB/T15283-1994(idtIEC60521:1988).

性能特点及应用标准
DD90L 型单相感应式电能表采用国外先进的长寿命技术和工艺，低功耗、高过载、高稳定性，使用寿命长（MTTF=25 年）。DD90 型为亚长寿命单相感应式电能表（MTTF=15 年）。
Features Characteristics & Standard Adopted
The DD90L single-phase watt-hour meter is a kind of advanced induction meter using the long life technique . It has the advantage of long life (MTTF = 25 years), low power loss, high overload and stable . Model DD90 is a sub long life single-phase watt-hour
meter (MTTF = 15 years).



◆ 轻载、相位连续可调，方便稳定； ◆ 起动、潜动采用防潜孔技术，无需调整； ◆ 采用磁推轴承，轴向无摩擦，径向为石墨轴承，自润滑，无谐振，摩擦损耗极小，保证了长寿命和稳定性； ◆ 电压线圈用树脂浇注，防潮气，耐高压冲击； ◆ DD90L 型采用烫印字符，抗紫外线辐射不褪色； ◆ DD90L 型表壳采用绝缘密闭Ⅱ类防护。 ◆ 产品符合标准GB/T15283-1994（idtIEC60521：1988）。