Some standard content:
ICS29.120.70
2002-07-16
JB/T3322-
—2002
JB/T3322
2002-12-01
JB/T3322—2002
This standard is a revision of JB T3322—1994 "Signal Relay". This standard is divided into 10 chapters. According to the standard JB/T9568-2000 "General Technical Conditions for Relays, Protection and Automatic Meters in Power Systems", the contents of Chapter 5 and Chapter 6 have been appropriately adjusted, and the new electrical interference inspection standards and packaging and storage standards have been introduced. This standard replaces JB/T3322—1994.
This standard is proposed by the China Machinery Industry Federation. This standard is issued by the National Technical Committee for Standardization of Measuring Relays and Protection Equipment. This standard was drafted by Shanghai Relay Co., Ltd., and the drafter of this standard is Wang Jiemin.
This standard was first issued in 1983 and revised for the first time in 1994.
1 Scope
Signal relay
JB/T 3322—2002
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, user manual and packaging, transportation and storage of signal relays:
This standard applies to signal relays (hereinafter referred to as relays) used in power system relay protection or control circuits, and serves as the technical basis for the design, production and use of the relays. This standard is only applicable to new relays.
2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB/T 2900.1-1992 Basic terms of electrical engineering (neqEC 60050) GB/T2900.17-1994 Electrical engineering terms Electrical relays GB/T7261-2000 Basic test methods for relays and devices JB/T7828-1995 Technical conditions for packaging and transportation of relays and their devices B/T9568-2000 General technical conditions for relays, protection and automatic devices in power systems JBT10103-1999 Method for compiling product models of relay technical devices 3 Terms and definitions
The terms and definitions established in GB/T2900.1-1992 and GBT2900.17-1994 apply to this standard. 4 Product classification
4.1 Product classification principles
4.1.1 According to the nature of the input excitation quantity:
a) DC relay (working coil connected in DC circuit): b) AC relay (working coil connected in AC circuit). 4.1.2 According to the type of input excitation quantity:
a) Voltage type relay (input excitation quantity is voltage): b) Current type relay (input excitation quantity is current). 4.1.9 According to the signal display method:
a) Mechanical action indication relay (action indicated by signal board or signal indicator); b) Light action indication relay (action indicated by signal light). 4.1.4 According to the way of holding and resetting:
|a) Mechanical holding, manual or electrical resetting relay; 6) Electrical holding: manual or electrical resetting relay: c! Magnetic holding, manual or electrical resetting relay. 4.1.5 According to external wiring method:
a) Front wiring relay:
JB/T 3322--2002
Rear wiring relay.
4.1.6 According to installation method:
a) Embedded relay;
b) Outlet relay.
4.1.7 According to structural form:
a) Non-insertion relay:
b) Insertion relay.
4.1.8 According to construction principle:
a) Static type:
h) Electromagnetic type.
Model and meaning
The compilation of relay model shall be in accordance with JB/T10103
Rated parameters
The rated parameters of relay shall generally meet the following requirements a)
AC voltage rating: 100V, 127V, 220V, 380V. DC voltage rating: 6V, 12V, 24V, 48V, 110V 、220V DC current rating: 0.01A, 0.015A, 0.02A, 0.025A, 0.03A, 0.04A, 0.05A, 0.06A, 0.075A, c
0.08A, 0.1A, 0.15A.0.2A, 0.25A, 0.5A, 0.75A, 1A, 2A, A, 8A. Power frequency rating: 50Hz, 60Hz. d
DC holding voltage rating: 12V, 24V, 48V, 110V, 220V. e)
Overall dimensions and installation dimensions
are specified by the enterprise product standards.
4.5Weight
is specified by the enterprise product standards.
5 Technical requirements
5.1 Reference values and test tolerances of influencing quantities and influencing factors Reference values and test tolerances of influencing quantities and influencing factors are shown in Table 1. Table 1 Reference values and test tolerances of influencing quantities and influencing factors Influencing quantities and influencing factors
Ambient temperature
Atmospheric pressure
Relative source temperature
Magnetic induction intensity of external magnetic field
AC power waveform
AC component in DC
Reference value
86kPa--106kP
45%--75%
Vertical installation! Vertical surface with head down to the ground level 0
50Hz (60Hz)
Test tolerance
±2℃
Standard deviation not exceeding 2
Not exceeding U.5mT in any direction
Distortion factor not exceeding [%
Not exceeding 1%
5.2 Standard limit values of the nominal range of influencing quantities and influencing factors The standard limit values of the nominal range of influencing quantities and influencing factors are shown in Table 2. Table 2 Standard limit values of the nominal range of influencing quantities and influencing factors Influencing quantities and influencing factors | |tt||Ambient temperature
Air pressure
Relative humidity
Working position
Range of variation of human excitation
AC power supply waveform
Magnetic induction intensity of external magnetic field
Power supply frequency
AC component in DC (ripple)
Range of variation of auxiliary excitation
5.3 Other requirements for places of use
Nominal range
JB/T 3322—2002
25℃～+40℃ (for electromagnetic relays), -1℃～-50℃ (for static relays)The average temperature within 24h shall not exceed 35℃s0kPa--110kPa
The average maximum relative humidity of the wettest month is as follows: At the same time, the average minimum temperature of the month is 25℃: and there is no condensation on the surface. When the maximum temperature is 40℃, the average maximum relative brightness shall not exceed 50%
Deviate from the reference position in one direction 5
DC: 80%-~110% of the rated value
Variable current: 85%~1[0% of the rated value
Distortion factor shall not exceed 5%
Not exceeding 1.5mT. Specified by the enterprise product standard 50Hz±1Hz, 60Hz± 1.2Hz
Not more than 12% of the DC rated value
When the rated voltage of the DC power supply is 110V and 220V, it is 80%--110% of the rated value, when it is 48V and below, it is 90%~110% of the rated value, and the rated voltage of the AC power supply is 85%~110% of the rated value
The use location is not allowed to have a grip response and impact response value exceeding the enterprise standard: the use location must not have explosive media, the surrounding medium should not contain gases and conductive media that corrode metals and destroy insulation, and it is not allowed to be filled with water vapor and have serious mold:) The use location should have facilities to prevent rain, snow, wind, and sand. 5.4 Limit values of the extreme range of ambient temperature
The extreme range of ambient temperature is -25 and -7D℃. The relay that does not apply excitation at the limit value will not suffer irreversible damage. After the temperature returns to normal, the main performance of the relay shall comply with the provisions of 5.5, 5.7 and 5.8, 5.6 Action value
The action value of the relay shall comply with the following provisions: a) Voltage type:
1) DC: not more than 70% of the rated voltage: 2) AC: not more than 80% of the rated voltage, b) Current type: DC: not more than 90% of the rated current. 5.6 Return value
The return value of the relay shall comply with the following provisions: JB/T3322—2002
a) DC relay shall not be less than 2% of the rated value: b) AC relay shall not be less than 15% of the rated value: c) The return value of the magnetic latching relay shall be specified by the enterprise product standard. 5.7 Holding value
The voltage holding value shall not be greater than 0.7 times the rated voltage, and the current holding value shall not be greater than 0.8 times the rated current. 5.8 Signal display time
For relays with primary signal display, when 1.1 times the rated voltage or 1.2 times the rated current is applied, the duration is specified by the enterprise product standard, but not greater than 0.05s, and the signal indicator shall display reliably. For relays with secondary signal display, when 1.1 times the rated voltage or 1.5 times the rated current is applied, each pulse value lasts 0.03s and the signal indicator shall display reliably.
5.9 Requirements for signal display
When the relay is actuated, its signal indicator should have obvious signal changes before and after the action, and the contacts should be reliably closed or opened. When the coil excitation disappears, its signal indicator should retain its correct state after the action. 5.10 Action time
The action time of the relay is specified in the enterprise product standard. 5.11 Power consumption
The power consumption of the relay is specified in the common enterprise product standard. 5.12 Impact of ambient temperature changes on performance When the ambient temperature is the standard limit value of the nominal range specified in Table 2, the action value of the relay meets the requirements of standard 5.5, and the relay should act reliably.
5.13 Thermal performance
When the ambient temperature is the highest nominal ambient temperature specified in Table 2, the relay should be able to operate for a long time when the current line is 3 times the rated current or the voltage coil is 1.1 times the rated voltage, without causing thermal damage to the insulation or other components. The maximum temperature of the coil shall not exceed 105℃.
For heating components such as resistors that are powered on for a long time, the surface temperature should not exceed 150℃, and no harmful thermal effects will be generated on adjacent components.
5.14 Insulation performance
5.14.1 Insulation resistance
The insulation resistance between each circuit of the relay and the exposed non-live metal part and the casing, as well as between the coil circuit and the contact circuit, shall be measured using a test instrument with an open circuit voltage of 500V. The resistance should be not less than 300M. 5.14.2 Dielectric strength
5.14.2.1 The relay circuits and the exposed non-live metal parts and the casing, the working winding and the point circuit not connected to the holding winding should be able to withstand the AC test voltage of 2kV (effective value) 50Hz for 1min, and the light insulation breakdown and flashover phenomenon: the working winding and the holding winding should be able to withstand the AC test voltage of 1kV (effective value) 50Hz for 1min, and the light insulation breakdown or flashover phenomenon.
5.14.2.2 During factory inspection, the test duration is allowed to be shortened to 1s, but the test voltage should be increased by 10% at this time. 5.14.2.3 When rechecking the dielectric strength, the test voltage value is 75% of the specified value. 5.14.3 Impulse Flash voltage
The relay circuits and exposed non-live metal parts and casing, and the working cable group and the unconnected winding contact circuit should be able to withstand a test voltage with a waveform of standard lightning wave and an amplitude of 5kV, and there should be no insulation damage afterwards. After the test, the relay should meet the performance requirements specified in 5.5, 5.7, and 5.8.
During the test process, flashovers that do not cause insulation damage are allowed. If flashover occurs: the insulation resistance and dielectric strength should be rechecked, and the dielectric strength test voltage value is 75% of the specified value: 4
5.15 Vibration response capability
JB/T3322—2002
When the relay is in the T. working position, it should be able to withstand the vibration specified in 5.12.4.1 of JB/T9568-2000. Dynamic response test, the severity level of the test is generally level 1. If there are other special requirements, they shall be specified by the enterprise product standards. During the test, the input excitation is zero, the relay should not malfunction, should not cause the card to drop or permanently change the display state of the signal indicator, and the time for the output circuit to change the normal state shall not exceed 1008. The input excitation is the rated value, and the release state should not appear. After the test, the relay should not be mechanically damaged, and its performance should still meet the requirements specified in 5.5, 5.7, and 5.8.
5.16 Dynamic endurance ability
When the relay is in the working position, it should be able to withstand the vibration endurance test specified in 15.12.4.2 of JB/T9568--2000. The severity level of the test is generally level 1. If there are other special requirements, they shall be specified by the enterprise product standards. During the test, no excitation is applied to the maintenance appliance, and the card to drop or the display state of the signal indicator is allowed to change permanently. After the test, the relay shall not be mechanically damaged, and its performance shall still meet the requirements of 5.5, 5.7, and 5.8.
5.17 Impact response capability
When the relay is in the working position, it shall be able to withstand the impact response test specified in JB/T9568--2000115.12.5.1. The severity level of the test is generally level 1. If there are other special requirements, they shall be specified by the enterprise product standard. During the test, the input excitation is zero, the relay shall not malfunction, shall not cause the card to drop or permanently change the display state of the signal indicator, and the time for the input H circuit to change the normal state shall not exceed 100. The input excitation is the rated value. The release state shall not appear. After the test, the relay shall not be mechanically damaged, and its performance shall still meet the requirements of 5.5, 5.7, and 5.8.
5.18 Impact durability
When the relay is in the working position, it should be able to withstand the impact durability test specified in 5.12.52 of JB/T9563-2000. The severity level of the test is generally level 1. If there are other special requirements, they shall be specified in the enterprise product standards. During the test, no excitation is applied to the relay. It is allowed to drop or permanently change the state of the signal indicator. After the test, the relay should not be mechanically damaged, and its performance should still meet the requirements of 5.5, 5.7 and 5.8.
5.19 Collision resistance
The relay should be able to withstand the collision test specified in 5.12.6 of 1B/T9568-2000. The severity level of the test is generally level 1. If there are other special requirements, they shall be specified in the enterprise product standards. During the test, no exciting force is applied to the relay, no packaging is carried, and no transport limiter is removed. During the test, it is allowed to drop the card or permanently change the display state of the signal indicator. At the end of the test, the relay should not be mechanically damaged, and its performance should still meet the requirements specified in 5.5, 5.7, and 5.8. 5.20 Humidity and heat resistance performance
The relay is subjected to alternating damp heat test at a maximum temperature of ·40\, and the test cycle (48h): within 2h before the end of the test, use a test instrument with an open circuit voltage of 500V to measure its insulation resistance according to the specified parts in 5.14.1, which should be not less than 4M2. The dielectric strength between the working winding and the contact circuit not connected to the holding winding and between the working winding and the holding winding is 75% of the specified value, and there is no insulation breakdown or flashover. After the test, the relay should be restored to the standard test atmosphere for 2h: an appearance inspection should be carried out. 5.21 Contact performance
5.21.1 Contact breaking capacity
It is generally selected from the following data according to the purpose of the relay. If there are special circumstances, it shall be specified by the enterprise product standards: a) DC circuit: Under the conditions of current not exceeding 12A or 0.5A and voltage not exceeding 250V, the external output contact shall be able to disconnect a 50W or 30W DC inductive load with a constant of (5±0.75)ms; b) AC circuit: Under the conditions of current not exceeding 1A and voltage not exceeding 250V, the external output contact shall be able to disconnect a 250VA or 100VA load of the circuit.
5.21.2 Electrical life
Relay contact connection In the circuit load specified in 5.21.1, the working winding is excited (no excitation is applied to the holding winding) and it should be able to operate reliably 5×10 times. The electrical life test rate is 720 times/h. After that, the relay should meet the requirements of 5.5 and 5.7.5.8, and can withstand 75% of the test voltage value specified in 5.14.2 without insulation breakdown or flashover. 5
JB/T3322—2002
5.22 Mechanical life
Under the specified normal test standard atmospheric conditions, the relay is in the normal installation position, the rated excitation is applied to the working winding, and no excitation is applied to the holding winding), and no electrical load is applied to the contacts. At this time, the relay should be able to withstand 10 action and return cycles, and each action and return cycle should be reliable. After the mechanical life test, the relay should not have permanent deformation or other damage to the mechanical parts, and its performance should still meet the requirements of 5.5, 5.7, and 5.8, and can withstand 75% of the test voltage value specified in 5.14.2, without insulation breakdown or flashover. The test rate of mechanical life is 1800 times/h. Relays with mechanical action indication require a reset indicator, and the test rate is 720 times/h. 5.23 Structural and external requirements
Specified by the enterprise product standards,
5.24 Electrical clearance and creepage distance
The electrical clearance between the relay lead terminals should be no less than 4mm. The creepage distance should be no less than 6mm. 5.25 Additional requirements for static relays
5.25.1 Capability to withstand pulse group interference
Static relays should be able to withstand the test of 1MHz and 100kHz attenuated oscillation waves specified in 5.18.1.[ of JB/T9568-2000. During the test, the excitation amount applied to the product and the qualified criterion shall be specified by the enterprise product standard. 5.25.2 Capability to withstand electrostatic discharge interference
Static relays should be able to withstand the test voltage of the severity level III specified in 5.1.8.1.2 of JBT9568-2000. During the test, the excitation amount applied to the product and the qualified criterion shall be specified by the enterprise product standard. 5.25.3 Capability to withstand radiated electromagnetic field interferenceStatic relays should be able to withstand the test field strength of the severity level 1II specified in 5.18.1.3 of JB/T9568-2000. During the test, the excitation applied to the product and the qualified criteria are specified by the enterprise product standards. 5.25.4 Capability to withstand fast transient interference
The static relay should be able to withstand the test voltage of the severity level II specified in 5.18.1.4 of JB/T9568-2000. During the test, the excitation applied to the product and the qualified criteria are specified by the enterprise product standards. 5.25.5 Capability to withstand the interruption of the auxiliary excitation quantity The interruption time and qualified criteria of the auxiliary excitation quantity are specified by the enterprise product standards. 6 Test method
6.1 The test record should comply with the provisions of Chapter 4 of GB/T7261-2000. 6.2 The inspection of structure and appearance shall be carried out according to the method specified in Chapter 5 of GBT7261-2000. 6.3 When testing the limit value of the extreme range of ambient temperature in 5.4, it shall be carried out according to the method of heat determination in Chapter 21 of GB/T7261-2000! 6.4 Test 5.5 action value. When the return value is set in 5.6 of this standard, the following method shall be followed: 6.4.1 Relay with one-time indication signal display 6.4.1.1 Test conditions: normal test conditions. 6.4.1.2 Test circuit: wiring as shown in Figure 1. o
Frequency chasing circuit
Tested electrical appliance
K—A fast intermediate relay for action indication (action time not more than 10ms) Figure 1 Action value and return value test wiring diagram
6.4.1.3 Test procedure: See Figure 2.
JB/T 3322—2002
Apply the excitation quantity (or A), suddenly increase from zero to the specified action value, observe the action of the relay (the relay moving contact is closed or the moving contact is open),
Apply the excitation quantity from the action value to the rated value, observe the action of the relay (the relay should be in a reliable action state): Apply the excitation quantity from the rated value suddenly drop to the specified return value (when the mechanical signal mechanism is manually reset) observe the action of the relay (the relay changes from the action state to the return state); New electricity, observe the action of the relay, the relay should be in a reliable return state). Thanks
Device
Excitation amount: 1-
Action value: II -
Relay working state: C—
Whip channel:
Return state: 1-
Return to caution.
Action state,
Figure 2 Action value and return value test procedure
6.4.2 Relay with secondary indication signal display 6.4.2.1 Test conditions: Specified normal test system: 6.4.2.2 Test circuit: Wiring as shown in Figure 1, 6.4.2.3 Test procedure: See Figure 3,
Relay input excitation: 1
Action value; [I-
-Rated value: I—Return value:
Relay working state: 0—Return state: 1———Action state: a-[
The first signal displays the action state: b-1——The second signal displays the action state. Figure 3 Secondary indication signal display relay test procedure Apply excitation V (or A), suddenly increase to the specified action value, observe the action of the relay (the relay is in the action state, the first signal indicator displays): Apply excitation from the action value suddenly increases to the rated value, observe the action of the relay (same as a)): b
Apply excitation from the rated value suddenly decreases to the specified return value, observe the action of the relay (the armature of the relay changes from the action state to the return state, the second signal indicator still keeps displaying): Disconnect the input circuit, observe the input of the relay (he)); 7
JB/r 3322-2002
Apply the excitation amount, suddenly increase from zero to the specified action value, observe the action of the relay (the relay is in the action state, and the first and second signal indicators should both display]f
Apply the excitation amount from the action value to the rated value, observe the action of the relay (same as b))Apply the excitation amount from the rated value to the specified return value, observe the action of the relay (the armature of the relay should change from the action state to the return state, and the first and second signal indicators still keep displaying):Disconnect the input circuit and observe the input of the relay (same as g)):Apply the specified reset amount (or manual reset), observe the first and second signal indicators (change from action display to disappearance).
6.4.3 Qualification criterion
During the 10-cycle action test, if the specified function is not completed at the specified value for one time, it shall be judged as unqualified. 6.5 When testing the holding value in 5.7, proceed as follows: Test conditions: normal test atmospheric conditions, 6.5.11
Test circuit: connect according to Figures 4 and 5.
Tested relay
Figure 4 Current action, voltage holding signal relay holding value test wiring diagram Wave test nanometer
Figure 5 Voltage action, voltage holding signal relay test wiring diagram Note: R, is the external resistance of the relay, the holding coil voltage is 48V, and Rs is not required. 6.5.3 Turn on switch S, adjust R, make the excitation quantity (current or voltage) to the rated value, and the relay will operate: 6.5.4 Adjust R, make the excitation quantity to 80% of the rated voltage, turn off switch S1, and observe the relay operation. 6.5.5 Repeat the above procedure 10 times.
6.5.6 Qualification criteria: If any of the following conditions occurs during the test, it will be judged as unqualified. a) The armature cannot be held. That is, the armature is released; b) After the armature is released, it is attracted, that is, the polarity of the coil is reversed. 6.6 When testing 5.8 and 5.9, proceed as follows. 6.6.1 Test conditions: normal test atmospheric conditions, 6.6.2 Test circuit: wiring according to Figure 6.
JB/T 3322--2002
Adjust the pulse signal generator so that the amplitude of its pulse signal is 1.1 times the rated value, and the pulse time width is 50ms (one-drink display), 30ms (secondary display), apply the pulse signal to the dry signal relay, and observe the signal display and contact contact: Tested electrical appliance
Union signal
Assistant generator
Figure 6 Signal display time test wiring diagram
6.7 When testing 5.10, proceed as follows: 6.7.1 Test conditions: normal test atmospheric conditions. The current type signal relay is wired as shown in Figure 7, and the voltage type signal relay is wired as shown in Figure 8. Micro test and maintenance electrical appliances
Current type signal relay action time test wiring diagram Select test electrical appliances
Figure 8 Voltage type signal relay action time test wiring diagram 6.7.2 Adjust the excitation value (V or A) to the rated value (PT)
JB/T 3322-2002
6.7.3 Operate switch S, suddenly apply the excitation value, and measure the action time. Measure 10 (or 5) times and calculate the average value. The average value should be less than the requirements specified in the enterprise product standard.
6.8 When testing 5.11, follow the method specified in Chapter 9 of GB/T7261-2000. 6.9 Test 5.12, according to the methods specified in Sections 11 and 12 of GB/T7261-2000. 6.10
When testing 5.13, according to the methods specified in Chapter 10 of GB/T7261-2000. 6.11
When testing 5.14.1, according to the methods specified in Section 19.4.2 of GB/T7261-2000. When testing 5.14.2, according to the methods specified in Section 19.4.1 of GB/T7251--2000. When testing 5.14.3, according to the methods specified in Section 19.4.3 of GBT7251--2000. 6.13
When testing 5.16, according to the methods specified in Section 16.3 of GB/T7261-2000. 6.14
When testing 5.17, proceed according to the method specified in 17.4 of GB/T7261--2000. When testing 5.18, proceed according to the method specified in 17.5 of GB/T7261-2000. When testing 5.19, proceed according to the method specified in Chapter 18 of GB/T7261-2000. When testing 5.20, proceed according to the method specified in Chapter 20 of GB/T7261-2000. 6.19
When testing 5.21, proceed according to the following methods. 6.19.1bzxz.net
Test conditions: Normal test atmospheric conditions
Test circuit: The signal relay group without holding circuit is in accordance with Figure 9, and the signal relay with holding circuit is in accordance with Figure 10. 6,19,2
1 The signal relay without power reset is not connected to this circuit. No people
Electric reset circuit"
Time sequence controller
Signal relay contact performance test wiring diagram without holding circuit Figure 9
, the signal relay without electric reset is not connected to this circuit. The signal relay without electric reset has no S, control circuit. Bold point
Time guard 1 control position
Figure 10 Signal relay contact performance test wiring diagram with holding circuit 6.19.3 Action program of time program controller (wiring according to Figure 9) a) For the signal relay without electric reset, the time program controller regularly connects and disconnects contact K, and the display signal is manually reset: b) For the signal relay with electric reset and a display signal, the time program controller connects and disconnects contacts K. and K2: 10
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