YXVQC-211 integrated control device for wattless voltage
Scope of application
The comprehensive automation system in YXSI company with the VQC regulation function, the main transformer tap adjusting and shunt capacitors in integrated control.
Protection function
A) tap two transformers and four groups of capacitor switching;
B automatic recognition of the whole substation operation);
C automatic optimization control scheme);
D) can realize the cyclic switching capacitor group.
The main function parameters
A) action value
Setting: voltage 5V~120V, power factor 0~1.000;
The grade difference: voltage 1V, power factor 0.001;
Action value accuracy: consistency is not greater than action value of 3%; the average error is less than ± 3%.
B) action time
Tuning range: 0~9.99S;
The grade difference: 1S;
Action value accuracy: consistency is not greater than action value of 5%; the average error is less than ± 5%.
YXSB-221 digital transformer protection device
Scope of application
YXSB-221 digital regulator protection and control device is applicable to electric power, railway, port of 110KV following various substations, distribution of the pressure regulator, pressure regulator unit is the bay level device.
Protection function
A) three segment type composite voltage starting over-current protection function;
B) two segment zero sequence voltage blocking zero sequence current and zero sequence current and zero sequence over-voltage protection lock;
C) low frequency protection, low voltage protection function;
D) over load protection function;
E) automatic and manual OLTC
Capacitor protection and control device YXSC-222 digital
Scope of application
YXSC-222 digital protection and control device for capacitor, low voltage shunt capacitor is a capacitor unit, the interlayer device.
Protection function
A) three segment type over-current protection function can be cast back;
B) zero sequence overcurrent (or unbalanced current) protection function;
Zero sequence overvoltage (c) or unbalanced voltage) protection function;
D) over voltage protection function;
E) low voltage protection function;
F) a flow blocking low voltage and no flow blocking over voltage protection function;
The main function parameters
Current quick break protection, delay quick break protection, over-current protection, zero sequence overcurrent protection
A) action value
Setting range 1 ~ 99.99A
The grading error 0.01A
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time
Setting range 0 ~ 9.99s
The grade difference of 0.01 s
Movement time in the action current setting value of 2 times, action time setting is 0.01s, the measured action time is not more than 30ms
Over voltage protection, low voltage protection
A) action value
Tuning range of 5~120V
The grading error 0.01V
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time
Setting range 0 ~ 40.00s
The grade difference of 0.01 s
Movement time in the action current setting value of 2 times, action time setting is 0.01s, the measured action time is not more than 30ms
Self closing line protection and control device YXSL-228 digital link
Scope of application
YXSL-228 digital through self closing line protection and control device for railway, autism, autism through variable (with) line substation, line unit of bay level device.
Protection function
A) three low voltage blocking direction overcurrent protection;
B) an automatic reclosing function phase synchronism check and check no pressure;
C) voltage loss protection function;
D) from the vote function line;
E Underfrequency) function;
F) small current grounding line selection function;
G) the zero sequence current protection function;
H) overload.
The main function parameters
Quick break protection, delay quick break protection, over-current protection, zero sequence current protection
A) action value:
Tuning range of 1 ~ 99.99A; (zero sequence current of 0 ~ 5A)
The grading error 0.01A
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time:
Setting range 0 ~ 9.99s
The grading error 0.01s
Action time accuracy in the action current of 2 times the measured action time, consistency is not greater than 20ms, the average error is less than ± 20ms action time
Alternating direction function
The sensitive angle -30 ° /-45 ° (optional), the average error is less than ± 5 °, consistency is not greater than 5 deg.
Action 160 degrees, the average error is less than ± 5 °
The minimum action power line voltage is 0.5V, the maximum angular sensitivity test is not more than 0.5VA
Low voltage blocking function
Tuning range of 5V~100V, the grading 1V, error is less than ± 3%
Reclosing function
Protection is a three-phase reclosing function
Reclosing time delay: setting range 0.1 ~ 9.99s
The grading error 0.01s
Accuracy and consistency of action time is not more than 20ms
The average error less than ± 20ms action
After acceleration
Acceleration a, two section, three section is optional after
Each post acceleration control word alone to cast back
Post acceleration delay time: setting range 0 ~ 3S
The grading error 0.01s
Accuracy and consistency of action time is not more than 20ms
The average error less than ± 20ms action
Underfrequency Load Function
A) carrier frequency underfrequency:
Tuning range: 46 HZ ~50 Hz
The grade difference: 0.01 Hz
Action value accuracy: consistency is not greater than 0.01 Hz; the average error is less than ± 0.02 Hz
B) low-voltage blocking under frequency load shedding:
Tuning range: 5V~100V
The grade difference: 1V
Action value accuracy: consistency is not greater than action value of 3%, the average error is less than ± 3%
C low current locking UFLS):
Tuning range: 0.2~99.99A
The grade difference: 0.01A
Action value accuracy: consistency is not greater than action value of 3%, the average error is less than ± 3%
D) slip blocking of under frequency load shedding:
Setting: Δ F Δ T 0~10 Hz; fixed tuning of 0.5 s
The grade difference: F 0.01 Hz
Action value accuracy: consistency is not greater than 0.02 Hz/ s; the average error is less than ± 0.05 Hz/ s
E) UFLS action time:
Setting time: 0.1 ~ 9.99s
The grade difference: 0.01s
Action: the accuracy of time consistency is not more than 20ms, the average error is less than ± 20ms action time
Small current grounding line selection function
The zero sequence current is not less than 0.02A, the zero sequence voltage is more than 10V, the zero sequence voltage, zero sequence current is applied using the 5 harmonic or harmonic, zero sequence current and zero sequence voltage when the lead between 10 ° ~170 °, convicted of small current grounding, boundary error is less than ± 5 °; sensitive angle +90 °.
Under voltage protection function, automatic standby line
A) action value:
Tuning range of 5~120V
The grading error 0.01V
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time:
Setting range 0.1 ~ 9.99s
The grade difference of 0.01 s
Movement time in the action current setting value of 2 times, action time setting is 0.01s, the measured action time is not more than 30ms
YXSL-226A power line protection device
Scope of application
YXSL-226A digital power line protection and control device for electric power, railway, port of 110KV following various substation, power distribution power line, is a line unit of bay level device.
Protection function
The three section of low voltage blocking direction overcurrent protection
A three-phase automatic reclosing function;
Voltage loss protection function
Overvoltage protection function
Underfrequency Load Function
Small current grounding line selection function
The zero sequence current protection function
The main function parameters
Quick break protection, delay quick break protection, over-current protection, zero sequence current protection
A) action value
Tuning range of 1 ~ 99.99A; (zero sequence current of 0 ~ 5A)
The grading error 0.01A
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time
Setting range 0 ~ 9.99s
The grading error 0.01s
Action time accuracy in the action current of 2 times the measured action time, consistency is not greater than 20ms, the average error is less than ± 20ms action time
C) phase to phase function
The sensitive angle -30 ° /-45 ° (optional), the average error is less than ± 5 °, consistency is not greater than 5 deg.
Action 160 degrees, the average error is less than ± 5 °
The minimum action power line voltage is 0.5V, the maximum angular sensitivity test is not more than 0.5VA
D low voltage blocking) function
Tuning range of 5V~100V, the grading 1V, error is less than ± 3%
Reclosing function
Protection is a three-phase reclosing function
Reclosing time delay: setting range 0.1 ~ 9.99s
The grading error 0.01s
Accuracy and consistency of action time is not more than 20ms
The average error less than ± 20ms action
After acceleration
Acceleration a, two section, three section is optional after
Each post acceleration control word alone to cast back
Post acceleration delay time: setting range 0 ~ 3S
The grading error 0.01s
Accuracy and consistency of action time is not more than 20ms
The average error less than ± 20ms action
Underfrequency Load Function
A) carrier frequency Underfrequency
Tuning range: 46 HZ ~50 Hz
The grade difference: 0.01 Hz
Action value accuracy: consistency is not greater than 0.01 Hz; the average error is less than ± 0.02 Hz
B) low-voltage blocking under frequency load shedding
Tuning range: 5V~100V
The grade difference: 1V
Action value accuracy: consistency is not greater than action value of 3%, the average error is less than ± 3%
C low current locking UFLS)
Tuning range: 0.2~99.99A
The grade difference: 0.01A
Action value accuracy: consistency is not greater than action value of 3%, the average error is less than ± 3%
D) slip blocking of under frequency load shedding
Setting: Δ F Δ T 0~10 Hz; fixed tuning of 0.5 s
The grade difference: F 0.01 Hz
Action value accuracy: consistency is not greater than 0.02 Hz/ s; the average error is less than ± 0.05 Hz/ s
E) UFLS action time
Setting time: 0.1 ~ 9.99s
The grade difference: 0.01s
Action: the accuracy of time consistency is not more than 20ms, the average error is less than ± 20ms action time
Small current grounding line selection function
The zero sequence current is not less than 0.02A, the zero sequence voltage is more than 10V, the zero sequence voltage, zero sequence current is applied using the 5 harmonic or harmonic, zero sequence current and zero sequence voltage when the lead between 10 ° ~170 °, convicted of small current grounding, boundary error is less than ± 5 °; sensitive angle +90 °.
Under voltage protection, over-voltage protection function
A) action value
Tuning range of 5~120V
The grading error 0.01V
Accuracy consistent action value not greater than action value of 3%; the average error is less than ± 3%
B) action time
Setting range 0.1 ~ 9.99s
The grade difference of 0.01 s
Movement time in the action current setting value of 2 times, action time setting is 0.01s, the measured action time is not more than 30ms
