Relay contacts are isolated 8 pin. When installing the light barrier in the diagram is not intended terminals will be required to purchase junction box.
Transformer Differential Protection Scheme
Phase protection relay wiring diagram. Check the housing quality wiring diagrams photocell. Knowing the sequence of operation for this type of starting relay can help you diagnose confirm or rule out certain service problems. Can be accomplished by using the diagram below. Phase 1 l2 l4. Note due to wrong connection done the above diagram is update in the above diagram i shown the complete method of wiring or connection of phase failure relay diagram with circuit breaker cont actor overload relay push button switches and electric motor however lets talk about this step by step. Single phase motors controls 12 1 hp crc qd relay 282 40 5015 sixth digit depends on hp control box wiring diagrams gnd green cap capacitor b l1 b main y r start l2 l1 motor leads line leads orange qd relay black yellow red blue gnd green gnd green gnd green start capacitor run capacitor cap b l1 qd relay.
Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2. Phase monitor relay provides protection against phase reversal phase loss phase unbalance undervoltage and overvoltage. Wiring diagram on page 5. Wiring diagrams n l accessories for 12 and 24 v dc control. Know your potential starting relays this website requires certain cookies to work and uses other cookies to help you have the best experience. Protection category ip 20 ip 20 ip 20 approvals according to type 3 26 seies 26 series step relays 10 a.
Phase to phase faults the relays in only the affected phases operate. 3 phase faults the overcurrent relays in all the 3 phases act. K ordering information example. 10a spdt output contacts 8 pin octal base. If a phase failure occurs on l1 the control relay cr c ontacts change state. 26 series screw terminal panel mount relay double phase switch 2 no dpst no 10 a contacts coil rated 12 v ac.
Voltage protection wiring diagram f fuses øa phase a l1 øb phase b l2 øc phase c l3 no normally open nc normally closed 2a fast acting fuses recommended for safety not required. If a phase failure occurs on l2 or l3 the shunt trip coil will draw power from l1 through the control relay cr contacts and phase failure relay contacts which will c hange state upon detecting a phase failure. A multi color led indicates normal. 1 phase 2 phase 4 wire 3 phase line markings l1 l2 l1 l3. 3 nos oc relay for overcurrent and earth fault protection. Phase 2 l1 l2 l3.
It fit all the wires guaranteed protection against moisture. In the presence of additional terminals designed for mounting wires installation of the part will be simple. Single line to ground faults only the relay in the faulty phase gets the fault current and operates. Overcurrent protection for 3 wire control circuits 11 ac manual starters and manual motor. 0 1 2. Works with 3 phase systems from 208v to 480v.
Gallery of Phase Protection Relay Wiring Diagram
