Locking relay ydb-100, 100V

brand ：JOSEF Joseph
name ： Electrically latching relay
model ：YDB-100;YDB-100DG
Rated voltage ：48、110、220V
Contact capacity ：250V5A
Power consumption AC ≤0.5VA Direct ≤6W
Action time ≤30ms
YDB-100 Electrically latching relay
YDB-100G Electrically latching relay
1 application
Lockout relay YDB-100、100V
Used in power plants and substations , It is used as the locking element of high-voltage bus earthing switch , To prevent closing the grounding knife switch when the high-voltage bus is energized .
2 Main performance
2 1 It is composed of imported integrated circuits and components . With advanced principles 、 Stable performance 、 High reliability 、 High accuracy of action value 、 Small discrete value 、 Wide setting range 、 Fast movement and return 、 Good return coefficient 、 The burden of transformer is small 、 Resistant to vibration 、 Anti interference and high insulation level .
2 2 The relay commissioning is simple 、 convenient , No adjustment is required on site .
2 3 Adopt the shell of electromagnetic relay , It is convenient for the renewal of electromagnetic relay .
3 working principle The main component of this relay is the integrated operational amplifier . The integrated operational amplifier has greater than 104 Open loop amplification and minimal offset voltage 、 electric current , It constitutes a static relay protection JIA device .
AC voltage UA. UB. UC The AC voltage required by the relay is converted by the AC voltage converter UA、Ub and UC;-UA、Ub
and IJc Add by adder , Re menstruation 150HZ Band stop and 50HZ Band pass filter 50HZ Harmonics other than ; Then through rectification 、 Filtering becomes
The DC voltage is sent to the setting circuit ; The setting circuit changes the setting value by changing the amplification factor of the operational amplifier ; Set the output voltage of the circuit
uz Then send it to the level detector and compare the voltage UB Compare ; And then drive , Acting on the outlet relay J.
Make Ua=Ub=Uc=UO
The output voltage of the adder is UD
Under normal operating conditions ,UD=-UA+Ub+UC, UD=2UΦ
A In case of phase break or two-phase break UD=UΦ
B、c In case of phase break UD√3UΦ
So in normal operation 、 Under the condition of single-phase disconnection and two-phase disconnection , Relay action , Latching output , It is not allowed to close the grounding knife switch .
High voltage bus is dead , Relay return , Locking release , It is allowed to close the grounding knife switch .
4 Technical conditions
4 1 Environmental reference conditions
ambient temperature ：20±2℃
Relative humidity ：45%-75%
Atmospheric pressure ：86-106Kpa
4 2 Normal service conditions
ambient temperature ：-10℃-+50℃
Ambient relative humidity ： No more than 90%
Atmospheric pressure ：80-IIOKpa
Extreme temperature during storage and transportation ： 25℃-+70℃
4 3 Rated parameters
Rated AC voltage ：100／√3v
Rated frequency ：50HZ
Rated voltage of DC power supply ：220V;110V;48V
4 4 Characteristic parameters
Action value in case of three-phase positive sequence symmetry ：5v
Return coefficient ： Not less than 0 9
Action time and return time ： No more than 30mS
notes ： The action value can also be set according to user requirements .
4 5 Allowable fluctuation range of auxiliary power supply voltage ：0 8-1. 15 Times the rated voltage .
4 6 High power consumption ：
AC voltage circuit ： stay 100/√3v Next , No more than 0 5VA.
DC circuit ： Rated voltage 220VDC Under the circumstances , No more than 6W.
4 7 Large contact capacity ：
Cut off load capacity ： Direct 250V following ,t=5ms, Perceptual load 50w, Resistive load I50W;
communication 250V following , load 1200VA;
Allow long-term on current ：5A.
4 8 AC voltage circuit overload capacity ：1 2 It can work continuously under times of rated voltage .
4 9 Insulation resistance ： In line with the Department of energy SD18987《 General specification for static relay protection and safety automatic devices 》.
4 10 Dielectric Strength ： The locking screw of each outgoing terminal to the shell can withstand power frequency voltage 2000V, The same group of contacts can withstand power frequency voltage IOOOV, No breakdown after one minute .
4 11 Anti interference performance ： In line with the country GB616285《 Electrical interference test of static relay and protection device 》 standard .
4 12 Electrical life ： The contact is 10000 times under rated load .
4 13 Mechanical life ： The contact is three million times in the no-load state .
5 Structure type code and corresponding back view terminal wiring
Structure type code ：AK-II,AQ-II (AK-II The embedded plus base is AQ-11),AP-II. Dimensions 、 See the structural drawing for the installation opening size .
6 Use
6 1 Before using the relay, check whether the relay is damaged during transportation and storage , The relay screw fasteners shall be free from looseness .
6 2 The wiring shall comply with article 5 Bar wiring
6 3 Characteristic parameter test ：
Connect according to the following figure , Test under normal conditions of use , The characteristic parameters shall conform to 4 4 The provisions of article .
a) Measure the action value when the three-phase positive sequence is symmetrical .
b) B Phase break or c The action value in case of phase disconnection shall be 4 4 The action value of the bar 2/√3 times .
c) A The action value in case of phase break or any two-phase break shall be 4 4 Of action values 2 times .
d) Action time and return time .
e) Power waste ： AC power consumption split phase at AC rated voltage 100V／√3 Test in case
The DC power consumption is tested under the DC rated voltage
6 4 Pull in DC power supply test
break K2, Pull and close the DC power switch K1, The relay should not malfunction .
7 Ordering instructions
Please indicate the relay model when ordering 、 specifications 、 Number 、 Structure type code 、 Main ordering parameters and special requirements .
Main ordering parameters ： Rated voltage of DC power supply 、 AC rated voltage
Order needs to know ：
8.1 Product model 、 name 、 Auxiliary voltage level .
8.2 Order quantity .
8.3 Relay matching : Such as the base 、 Insert sleeve, etc （ABB Structural accessories must be ordered separately ）.
Shanghai Joseph relay business department