Rated current Table 1 | ||||||||
Rated frame current Inm A | Rated current ln A | |||||||
2000 | (400)630,800,1000,1250,1600,2000 | |||||||
3200 | 2000,2500,2900,3200 | |||||||
4000 | 3200,3600,4000 | |||||||
6300 | 4000,5000,6300 |
The rated short circuit breaking capability and short time withstand of the breakers, the arcing distance is “zero” (as the outside of the breaker is no arcing.)Table 2
Rated frame current Inm A | 2000 | 3200 | 4000 | 6300 | ||||
Rated limit short circuit breaking capability lcu(kA)O-CO |
400V | 80 | 80 | 100 | 120 | |||
690V | 50 | 50 | 75 | 85 | ||||
Rated working short circuit breaking capability n x lcu(KA)/COS∅ |
400V | 176/0.2 | 176/0.2 | 220/0.2 | 264/0.2 | |||
690V | 105/0.25 | 105/0.25 | 165/0.2 | 187/0.2 | ||||
Rated short time withstand lcw lcs(kA)O-CO-CO |
400V | 50 | 50 | 80 | 100 | |||
690V | 40 | 40 | 65 | 75 | ||||
Rated short time withstand lcw (kA)———”+0.4s,O-CO |
400V | 50 | 50 | 65/80(MCR) | 85/100(MCR) | |||
690V | 40 | 40 | 50/65(MCR) | 65/75(MCR) | ||||
Notice: The input and out put wire are the same for the breaking of the capability. |
The maximum destroy power is 360W for the breakers, and in the different temperature,and rated lasting current will change.Table 3
Ambient temperature℃ |
Rated current | |||||||
400A | 630A | 800A | 1000A | 1250A | 1600A | 2000A | ||
40 | 400A | 630A | 800A | 1000A | 1250A | 1600A | 2000A | |
50 | 400A | 630A | 800A | 1000A | 1250A | 1550A | 1900A | |
60 | 400A | 630A | 800A | 1000A | 1250A | 1550A | 1800A |
Intelligent over current controller protection feature and functions The setting and error.Table 4
Long delay | Short delay | Instantaneous | Earthed error | |||||
lr1 | lr2 | Error | lr3 | Error | lr4 | Error | ||
(0.4-1)In | (0.4-15)In | ±10% | ln-50kA(Inm=2000A) ln-75kA(Inm=3200A) |
±15% | lnm=2000~3200A (0.2-0.8)In (1200A,160A) |
±10% | ||
Notice:lf it has the three steps protection at the same time, the setting will not across. |
Long delay over current inverse time ooperation features I2TL, =(1.51lr1)2tL, and its action time(1.02-2.0) Ir1, has time error is ±15%. Table 5
1.05Ir1 | 1.3Ir1 | 1.5Ir1 Setting time S |
15 | 30 | 60 | 120 | 240 | 480 |
>2hno action | <1h action | 2.0Ir Setting time S | 8.4 | 16.9 | 33.7 | 67.5 | 135 | 270 |
Connected diagram of breakers for basing on the universal DP agreement
System function
Three remote:
■Remote control:it is the operating control,which is to control the each subordinate station breakers’restore,close and open by from the principal station.The operator chooses the relative object from the system interface,and uses the mouse to pres the remote button.The operator import the code,and it will send the orders “close”.”open”.The order will be sent to the subordin- ate station,ana operating follows the time order,and the subordinate station will send the result to the principal station about the remote control.
■Remote adjusts:it is the setting fixed value of the subordinate station.The operator chooses the relatve object rom the system interface,ano uses the mouse to press the remote button.The operator import the code,and it will send the orders “close”, “open”.The order will be sent to the subordinate station,and operating follows the time order,and the subordinate station will send the result to the princpal staon about the remote control.Then the principal station will ts protection fixed value.
■Remote testi:it tests the network working parameter of the subordinate station througnprincpal station.The subsidiary of com- munication can send the working parameter to the upper:the current of the A,B,C,N phase,the voltage of the UAB,UBC,
UCA.
Remote communication:
■The principal checks the subordinate station for the type,close,breaking state,each protection fixed value,working state,and malfunction information state.And the subordinate will send the paramelers are type,state(make or break),malfunction inform -ation,alarm information,and several protections setting fixed value.
Other functions of the system:
■Besides four remote functions,the system has several management functions:accident alarm (information screen,picture
pull,accident dial,sound alarm),note affair,and so on.
■Fault memory:it can memory these parameter.the curent of the A,B,C,N phase,the voltage of the UAB,UBC,UCA,type of the malfunction,operation time of the malfunction,and put them into the databank.
■The factual current,voltage of the subsidiary station show as stick pictures and absolute value by the computer.And the workng state willbe shown as factual curve.
L type intelligent controller
■It adopts the setting way of coding switch and stirswich,and hasoveloacd long delay.short circuit short delay,instantaneous, earthed leakage four steps protection features,malfunction state,load curent light standard indication.But it dose not have the digital indication
Operation characteristic
The cycle times of the operation MCCB Table 7
Rated frame degree current A | Operating cycle total times |
2000 | 10000 |
3200 | 5000 |
Power and working voltage of shunt release,under voltage release,voltage
operating mechanism,closing electromagnetic,intelligent controller for the breakers Table 8
Needed power Rated working voltage | AC(50Hz) | AC(50Hz) | ||||
Name | 220V | 380V | 110V | 220V | ||
Shunt release | 24VA | 36VA | 24W | 24W | ||
Under-voltage release | 24VA | 36VA |   |   | ||
Closing electromagnetic | 24VA | 36VA | 24W | 24W | ||
Motor operation mechanism | Rated frame
degree current |
2000A | 85VA | 85VA | 85W | 85W |
3200A | 110VA | 110VA | 100W | 100W | ||
Power voltage of the intelligent controller | A.C.220V,A.C.380V,D.C.220V,D.C.110V |
Under voltage release characteristics of the breakers
Table 9
Type | Under voltage delay release | Under voltage instantaneous release | |
Release tripping time | Delay1.3.5s | nstantaneous | |
Release action voltage valaue |
(35%-70%)Ue | Can break | |
≤35%Ue | Can not close | ||
(85%-110%)Ue | Reliable close | ||
In 1/2 delay time,and power voltage return 85% | Keep not break |
Notice:The time precision is±10%
Auxiliary contacts features: The type of ht contacts:4 NO(normal open),4 NC(normal close),or 6 NO,6 NC.
conventional thermal current is 6A.Abnormal make-break capability: Table 10
Using sort |
ON | OFF | Operating cycle time and frequency of the make-break | ||||||
I/le | U/Ue | COSOand T0.95 | I/le | U/Ue | COSOand T0.95 | Operating cycle time | Operating cycle time per minute | Operating cycle time | |
AC-15 | 10 | 1.1 | 0.3 | 10 | 1.1 | 0.3 | 10 | 6(or same
as the main circuit) |
0.05 |
DC-13 | 1.1 | 1.1 | 6Pe | 1.1 | 1.1 | 6Pe |
Make-break capability in the normal condition of the auxiliary contacts Table 11
Using sort | Make | Break | ||||
/le | U/Ue | COSOand T0.95 | I/le | U/Ue | COSOand T0.95 | |
AC-15 | 10 | 1 | 0.3 | 1 | 1 | 0.3 |
DC-13 | 1 | 1 | 6Pe | 1 | 1 | 6Pe |
Notice:when Pe ≥50W,the upper imit of T0.95 will same as 6Pe ≤300ms.
Break off locked device
The break offlocked device could lock the OFF buton of the breaker(draw-out or fixed type)on the pressed position,making the breaker not to be closed.