Phase Sequence – This is when the three phases are not connected in the correct sequence. If a motor is started with an incorrect phase sequence it will cause them to start in reverse which may cause damage. ... Only Phase Failure Relays with Phase Asymmetry monitoring can detect this fault condition.
Features:
- Model XJ11, XJ3-D
- Protection function 1.over voltage protection, 2.under voltage protection ,
- 3. phase failure protection, 4.phase sequence protection
- Operation power 3-phase AC380v/220v, 50Hz/60 Hz
- The range of voltage protection Under voltage protection: 300-380v
- Overvoltage protection: 380-460v
- Delay time range actuating time of Under-voltage protection: 2-9s
- Actuating time of Overvoltage protection:1.5-4s
- Actuating time of phase failure and phase sequence
- Protection:2s/Max.Reset Automatically reset
- Contact capacity 5A AC380 v (resistance)
- Power consumption ?1w
- Insulation resistance ?100Mohm (20°C relative humidity 85% )
- Contact resistance ?0.03ohm
- Electrical life 1×105 times
- Ambient temperature -10C~+50C
- Ambient humidity 85% (20±5
- Dielectric strength No breakdown and flashover, under the condition of lasting to
- Operate power AC (50Hz )1500V for 1 minute.
- Installation type 1. 35mm track mounting, 2. screw mounting on the backboard
Package Includes:
1 x XJ11 Siemens Phase Failure and Phase Sequence Voltage Relay
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