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ꄲ RM7E Series Three-phase Unbalance Intelligent Phase-commuta
ting Switch
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ꁇ
RM7E Series Three-phase Unbalance Intelligent Phase-commutating Switch
넶PV：9
Created on：2018-09-05
RM7E Series Three-phase Unbalance Intelligent Phase-commutating Switch
Product introduction
Product Overview
● Installed at terminal of distribution network
● A number of single-phase loads are installed afterwards
● To bear and transfer single-phase loads
● To control the three-phase load unbalance
● Switching device which can break the fault current
Features
1. Its essence is “switching device”, it is in line with GBT 14048.3 standards, and it has passed CCC certificate, withstand overload current, and it is in line with GB 14048.2
● Breaking short-circuit current, breaking capacity of 35KA, which is in line with the requirements of
GB 14048.2.
● It has visible breakpoints, and it can prevent short circuit caused by lighting.
2. Switching with loads
● Phase A, B and C have mechanical locking function to prevent short circuit or breakdown between phases.
● Stable switching in 10 milliseconds, the discreteness is less than one millisecond.
● Long life, mechanical life is 100,000 times, which can meet the requirements of dynamically regulating single-phase load.
● Switching with load can be more than 12,500 times, which can meet the requirements of GB 14048.2 on electrical endurance.
3. Energy-saving, reducing loss of copper, iron and line
● Electromagnetic compatibility complies with GBT 14048.3 standards without operation failure or
abnormal action.
● Power loss is less than five watts, communication is widely applied to micro-power wireless meter
reading.
Service Conditions
1. Ambient temperature should be within -25℃~+75℃; Altitude should not exceed 2000m;
2. Relative air humidity: monthly mean temperature of the dampest month shall not exceed 25℃,
monthly mean max relative humidity of this month shall not exceed 90%, Please take special measures for the dew caused by temperature change.
3. External magnetic field around the installation position should not exceed
4. Times as much as earth magnetic field in any direction. Avoid strong electromagnetic interference
(such as high power motor or frequency converter). No explosive, corrosive gas, no rain or snow, dry and ventilated.
5. Class of pollution: 3; Installation category: lll.
Technical Parameters
Mounting Dimensions
PRODUCT