Some standard content:
UDC 621.318.5001-4
National Standard of the People's Republic of China
GB/T 2900.17: 94
Electrical relays
Electrotechnical terminologiesElectrical relays
1994-05-19 Issued
National Technical Supervision Bureau
1995-01-01 Implementation
Subject content and applicable terms...
General terms.
Terms related to excitation (input excitation and auxiliary excitation) 4 Terms related to relay status and operation 5 Terms related to influencing factors
Terms related to electrical appliances
Terms related to relay output (contact or non-contact) Terms related to time
Applicable to initialization relays, recording relays and setting relays Appendix A Supplementary terms (supplements) A1 Terms related to the names of nano-electrical devices A2 Terms related to the structure and performance of seasonal components A3 Terms related to the operation and performance of relays A4 Terms related to the performance of relays "Instructions for use of standard B (fee reference) *, Chinese references English index National Standard of the People's Republic of China Electrical terms Electrical relays Electrical terminologies KJectrka relays GR/T 2900-17—94
Generate GD2W17—83
This standard is based on IEC50 (4461 International Electrotechnical Code Chapter 446: Electrical Relays>1 Main purpose and scope of use
This standard specifies the special terms for electrical relays. The terms used in various standards related to electrical equipment must be consistent with 12900.1*Electrical terminology. This standard and relevant national standards for electrical professional terms. All terms specified in the above standards can be specified in various standards and technical documents. This standard is mainly for the formulation of standards, technical documents, abbreviations and translation of professional manuals, teaching materials and books. This standard does not apply to the terms used in relay schemes for signal transmission systems. 2 General terms
2.1 Electrical equipment||t t||When the control circuit meets certain requirements, it can produce a certain change in multiple electrical circuits in one typical connected circuit.
This term refers to an electrical device with a single relay energy-saving element between its output circuits. This term includes all the differential inductance parts necessary to complete its specified action. In order to be used for protection and automatic control, the name of the single relay energy-saving object should be read above to avoid adding quantity. In this case, the functionality needs to be higher than that of the relay, so as to complete the required operation. In addition, it can include a certain relay component, that is, the relay can be connected to the circuit to achieve the desired operation. 2.2 All-or-nothing electrical relay with a predetermined excitation value. If the excitation value is not within its working value range, it is actually three.
2.3 Measuring relay
An electrical device that operates when a characteristic quantity reaches its operating value under specified accuracy. 2.4 Time-limited relay
An electrical device that characterizes its characteristics by one or more time limits (such as operating time) that must meet specified requirements and meet relevant accuracy requirements of a certain level.
2.5 Non-specific time-limited relayWww.bzxZ.net
Non-specific time-limited relay: An electrical relay that has difficulty in meeting accuracy requirements of the time limit. 2-6 Dependent-time measuring relay A time-limited measuring relay whose time limit depends on the characteristic value in a specified manner. 2.7 Independent-time measuring relay Independent-time measuring relay A time-limited measuring relay whose time limit depends on the characteristic value in a specified manner. 1994-05-19 Approved by the State Technical Supervision Commission and implemented on January 1, 1995 GB/T 29C0.17-54 Within the scope of the specification specified by the State Technical Supervision Commission, its provisions can be considered to be independent of the characteristic value. 2. Electrical relay A type of electrical relay that produces a certain response by the relative movement of mechanical components in the power supply. 2.9 Static relay A type of electrical relay that produces a certain response by the relative movement of electronic, energy, optical or other inorganic thermal motion components. 2.15 A relay with output contacts A relay with only contacts in one or more output circuits. 2.11 A relay without input contacts 2.2 Single-phase relay An electrical relay that changes state in response to an input excitation (or characteristic) and returns to its original state when the excitation is removed. 2.3 Bipolar relay An electrical relay that changes state in response to an inductor (or constant current) and remains in this state when the excitation is removed and requires additional excitation to return to its original state. 2.14 Amplified relay (DC) Amplified relay (AD-) A relay whose state changes depending on the polarity of the input brush. 2.75 Non-polarized relay (DC) A DC relay whose state changes not depending on the polarity of the excitation. 3.1 Terms related to excitation (auxiliary excitation and auxiliary excitation) quantity
Under specified conditions, a certain amount of current or voltage (pressure) applied to the maintenance device alone or together with other currents to enable the chain device to complete its function
3.2 Input excitation
inputeneiggingunliny
For relays with or without, an excitation brush that can be applied to the maintenance device under certain conditions to make the maintenance device respond. For high-speed relays, the technical body forms a special amount or a slight excitation to constitute a continuous test. 3.3 Total excitation aukiliaryeurrgiziaxquntits except for the auxiliary excitation disk. 3.4 Micro excitation (otherwise a battery device to energizearelay is added to the relay with multiple brushes.
Note , the presence of any one excitation may not be sufficient to maintain the required function of the device, so all excitation components must be ignored (the required measurement and phase shift must be clearly understood).
3.5 Input circuit
All electrical components connected to the terminals of the relay to which the given input excitation is applied (if any, including those parts that are intentionally coupled to them inductively or capacitively). 3.6 Auxiliary circuit
All electrical components connected to the terminals of the relay to which the given auxiliary excitation is applied (if any, including those parts that are intentionally coupled to them inductively or capacitively). 3.7 Nominal value of excitation anenergizingquantity is used to mark or identify the appropriate approximate value of a certain excitation measurement of the discharge. 3. Rated value of excitation basis Rated value of excitation basis A certain excitation quantity value given by the standard or manufacturer and applicable to specified conditions. 8
GB/T2900.17—94
3-9 Limiting continuous thermal withatandvalneofanenergizingquaulity The maximum value of the excitation that the relay can continuously withstand and meet the temperature requirements under specified conditions (AC is RMS). 3.10 Short-time thermal limit of an energizing quantary The maximum value of an energizing quantary that an energizing relay can withstand under specified conditions for a specified short time without causing permanent degradation of its specified characteristic performance due to overheating (average value for AC). 3.11 Maximum value of an energizing quantily that an energizing relay can withstand under specified waveform and time conditions without causing permanent degradation of its specified characteristic performance due to combined electromotive force. 3.12 Operating range The range of a given micro-brush value of a energizing relay that can complete its predetermined work in accordance with specified requirements under specified conditions. Note: For measuring relays and when the required current is required, the effective range is as follows (6.14 1). 3.13 Rated power of an enargizing circuit The rated power of an energizing circuit The power or load absorbed by a given energizing circuit of a relay under specified conditions (or the rated impedance of an energizing circuit) 3.14 The rated impedance of a given energizing circuit of a relay under specified conditions. 4 Terms relating to relay states and operation (see Figure 1) 4.1 Discharge state The specified state in which a monostable relay is not energized. For a bistable relay, the specified state referred to by the manufacturer. 42 Initial state (see Figure 1) The specified state in which an energizing circuit must leave in order to complete its intended function in a given output circuit. 4.3 Operating state (operate state) For monostable devices, it is the specified state when the relay is in a specified manner. For bistable devices, it is another state other than the fault state specified by the control method. 4.4 Final state (final state) The state reached by the relay in order to complete its predetermined function in a given output circuit. It is mainly used for time-limited relays. 4.5 Action (applicable to a certain electrical relay) Electrical appliance) to operate (for electric a) relay) - change from the release state of the relay to its operating state (generally). Or, change from the hard state to the final state (in the case of some electrical relays or time-limited electrical appliances). The term "action" includes the two general terms of "start" and "cut", 4.6 release (applicable to electrical relays) to release (for electrical relays) - change from the operating state of an electrical appliance to its released state (generally). Or, change from the final state to the initial state (in the case of some electrical relays or time-limited electrical appliances)! In this store, "return" includes the terms "return" and "reset", 4.7 conversion (applicable to a certain electrical relay) to change over (form electric a) relay) to act or release,
4. Cycle (applicable to a certain electrical relay) to act and then release, or to release and then act, 3
GB/T 2900: 17-94
4.9 Start (applicable to Keliang gas relay) tnart (faranelertricalrelay) Yueli initial state or earn release state..
4. Switch (applicable to its electrical appliances) tuswireh4.19 Reverse recovery value revert-reverevalue For a certain type of DC polarized relay, under specified conditions, by increasing the input excitation, the input excitation value of the relay that is properly excited and in the release state will be activated. 4.20 Non-revert reverse value For a certain type of DC polarized relay, under specified conditions, by increasing the input excitation value, the excitation value of the relay that is properly excited and in the release state will not be activated. 4.21 Reverse non-revert value tyalue
For a certain type of DC polarized relay, under specified conditions, the value of the input excitation is increased so that the input excitation value of the device in the action state is not reduced.
4.22 Non-reverting value non-rever1value
For a certain type of DC polarized relay, under specified conditions, the value of the input excitation is increased so that the input excitation value of the device in the action state is not reduced. 4.23 Sturing value
Under specified conditions, the input value of the relay static starting is increased. 4.24 Switching value switching value
Under specified conditions, the input value (or characteristic value) of the electrical switch. 4.25 Resetting value resetting value
GB/T2900.17-94
Under specified conditions, the value of the quick-acting switching disk (or special disk) of the quick-acting device. Note: 1 These specified conditions can be expressed in the following 4.27 to 4.20, which means the return value
4 .26 disengaging value
the value of the input excitation (or characteristic) that causes the relay to disengage under given conditions Note: 1 This standard can be expressed in one of the following terms defined in 4.27-4-29. 4.27 real value enust value. frvaleurmeburce for a specified energy, at a given suction, measured on a given relay. This term is combined with terms 4-15 to 4.26 to produce
4.2B core value ruust value (test value) The value of a quantity which a relay should perform a given action during a test. This term is used in conjunction with terms 4.15 to 4.26. 4.29 Durability value
The value of a quantity which a relay should perform during its service life or a specified number of cycles. This term is used in conjunction with terms 4.15 to 4.36.
5 Terms relating to influencing factors
51 Influencing factor influencing authority [actor] Any quantity which may change a specified characteristic (action, selectivity, accuracy, etc.) of a relay [four systems]. 5.2 Refarence standard of an influencing factor The specified value of an influencing factor relating to the characteristics of a conducting relay. For measuring devices and time limit relays with or without a relay, these characteristics shall include in particular the tolerance and error limits. 5-3 Reference condition of unfluencing quantity and influencing factors All influencing factors and influencing factors are reference conditions. 5.4 Nominal range of influencing factors The range of influencing quantity (influencing factor) values within which the relay can meet the specified requirements (action, material release, error phase difference, etc.) under specified conditions. 5.5 Default range of an influencing factor The range of values of an influencing factor The range of values of an influencing factor 6. Terminology related to relays
G-1 Characteristic quantity (of a relay) Characteristic quantity (of a certain magnitude in relay) It refers to a characteristic of a relay, an electrical quantity with accuracy requirements, such as:
Overcurrent is the current of an undercurrent relay, frequency is the frequency of an overcurrent relay, and its input excitation energy may be voltage: power is the power of a power relay, and its input excitation base is voltage. 6.2 Setting value of the characteristic quantity (or of its setting parameter)
Under specified conditions, the threshold value of the characteristic disk that will cause the relay to operate, limiting value of the characteristic base The characteristic quantity is a limit value of a characteristic quantity that can be applied to the relay under specified conditions without changing its state and causing it to be damaged. 64 Setting range of the characteristic quantity (or parameters) The setting value range of the characteristic quantity or each setting parameter (such as the voltage or current of the power relay). e
CB/T 2900.17—94
6.5 Setting ratio of characteristic quantity the characteristicquanrity is the ratio of the maximum setting value of the characteristicquantity to the corresponding minimum setting value. 6.6 resetting ratio
the ratio of the resetting (return) value to the action value:
synonymous, resetting coefficient
makes it difficult for the system to be measured, or it can be a required value, 6.? # resetting percentage resetting percentage a coefficient expressed in percentage.
6.8 disengagement value disengagement value ofthe characteristicquantity:y the threshold value of the characteristicdisk when the relay is disengaged under specified circumstances6-9
disengagement coefficient disengaging ratio
the ratio of the disengagement value to the action value,
6.10 disengagement percentage disengagement sensitivity expressed in percentage.
6.Primary relay
A relay that is excited by the current or voltage directly from the main power supply through a transformer or converter. E.12 Secondary relay secondaryreleyA relay that is excited by the current and voltage from the transformer or converter. 6-13 Shunt relay ehuntrelay
A relay that is excited by the current from the shunt in the main power supply. 6.14 Effective range
The part of the working value range of the input excitation quantity (or characteristic quantity) that meets the accuracy requirements. 615 Characteristic angle For measuring relays, the single component between the two input excitation discs used to indicate its performance. 66 Electric thermal relay brerrtiallerical relation A time-limited measuring device that measures the current flowing through the protection device and simulates its thermal performance characteristic curve to protect the device from the electric heat.
6.17 Correction value
correctink quanlily
The quantity that changes the characteristics of the device in a certain prescribed way. For example, for electric relays, the pool temperature of the protected equipment, the air temperature, 7 related (contact to non-contact) relay brush output term 7.7 Output circuit ouputiruit
The entire conductive part on the lead terminals that produce a predetermined change in the relay (see 2.1 for more). 7.2 Contact circuit
contactcircuit
The output circuit composed of the output contact assembly (see Figure 3). C
GBT 2900. 17- 94
Figure 3 Explanation of terminology? .2~7.5 Figure
--The contact assembly 2, the contact assembly 7.3 contact assembly
rantacsaseembiy
Through the relative movement of the contact assembly.A group of parts that make or break a circuit (Fig. 3), 7.4 Contact element taataetmembact
When the contact circuit is disconnected, the contact element maintains the electronic part of the circuit (see Fig. 3), 7.5 Contact point contact (contartpoint) is used to close or break the circuit (Fig. 3), 7.6 Contact gap
When the contact circuit is disconnected, the gap between the points is. 7.7 Contact force crnta furce
Under specified conditions, the force between two contacts in the closed position. Synonyms contact industry
7. Contact tracking cor.tacifalluw
When the contact is closed, the contact element continues to move forward along the moving contact element for a specified displacement. Synonyms melting point overtravel
79 contact contact wipe
relative friction movement of contacts after contact 7.10 contact rol
relative friction movement of contacts after contact 7.11 effectively conducting output circuit effectively conducting output circuit a non-contact output circuit with a resistance lower than the specified value (applicable to relays without output contacts). 7.12 effectively non-conducting output circuit effectively non-conducting output circuit with a resistance higher than the specified value (applicable to relays without output contacts). 7.13 output make circuit when the relay is in the action state, the output circuit is either closed or effectively conducting: when the relay is in the working state, the output circuit is either disconnected or effectively non-conducting. 7.14 Our put break circuit When the relay is in the action state, the output circuit is either disconnected by the contact or effectively non-conductive, and when the relay is in the release state, the output circuit is either closed by the melting point or effectively conductive. 7.15 Make contact A kind of melting point that is closed when the relay is in the action state and opened when it is in the release state. 8
7.16 Break contact GE/T 2900. 17-94
A type of device in which a contactor is disconnected when in the actuation state and closed when in the release state. 7.17 Long-term limiting current of output circuit The value of the continuous current (RMS value for AC) that a closed contact circuit (effectively conducting output circuit) can withstand under specified conditions.
7.1 Short-time limiting current of an output circuit The value of the current that a closed contact circuit (effectively conducting output circuit) can withstand under specified conditions and within a specified short period of time.
7.t9 Limiting muaking capacity The maximum current value that the output circuit can connect under specified conditions (voltage, number of connections, power, time required, etc.). Lightly limiting breaking capacity lirniting burtakingcapacity7.20
The maximum current value that the output circuit can carry under specified conditions (voltage, number of cycles, power factor, time constant, etc.). Cyclic capacity linitingeyelingcapacity7.21
The current value that the output circuit can carry under specified conditions (voltage, number of cycles, power factor, time constant, etc.).
7.22 The bounce (for a contact circuit) of a circuit is a phenomenon that may occur when the circuit is connected or disconnected, before the contacts reach their final state.
7.23 Changeover contact A changeover contact in which one contact circuit is a combination of two contact circuits and when one of the contact circuits is opened, the other contact circuit is closed, and vice versa. Changeover contact in which one contact circuit is closed before the other contact circuit is opened. 7.24
A changeover contact in which one contact circuit is closed before the other contact circuit is opened. 7.25 Break-before-make contact A change-over contact in which one contact circuit is broken before another contact circuit is connected. 7.26 Position change-over contact A change-over contact in which one stable position is desired and in which both contact circuits need to be opened (or partially closed). 7.27 Tongue-shaped contact A contact component in which the contact is wholly or partially made of a magnetic material and which produces a magnetically driven tongue. 7.28 Time-related terms
B. Break contact melting point (break output circuit opening time uiirgtimecfbreakconaciLoutput-breakcirwit for a device in the released state, from the time specified by the input excitation disk to the instantaneous end of the break contact [break output circuit] first opening of the break contact. 8-2 Break contact melting point (break output circuit opening time uiirgtimecfbreakconaciLoutput-breakcirwit for a device in the released state, from the time specified by the input excitation disk to the instantaneous end of the break contact [break output circuit] first opening of the break contact. circuit closing time imcof make contact C output make circuit For a relay in a released state, under specified conditions, the time interval from the moment the input excitation reaches the specified value to the moment the moving contact (moving output circuit) is closed for the first time (effective conduction) ends. 83 The opening time of the moving contact (moving output circuit openingtineofamakeDontactfourpl-rukecircuit For a portable appliance in an operating state, under specified conditions, the time interval from the moment the input excitation is removed to the moment the moving contact (moving output circuit) is opened for the first time (effective conduction) ends. 9
CB/T 2900.17-94
8.4 Closing time of moving point breaking output circuit clcsiugtimcofabreakcontaci[outpul-breakcireait] For a relay in the action state, under specified conditions, the time from the moment when the input excitation characteristic is removed to the moment when the breaking contact closes the breaking output circuit [effective conduction] is required, up to 5 action timeuperisletime
For a relay in the release state (initial state), under specified conditions, the time from the moment when the input excitation characteristic is applied to the moment when the relay switches The time interval from the moment the excitation quantity (to be increased) reaches the specified value to the moment the relay returns. This adjustment technique is only suitable for the output circuit of the power supply and the situation that the timing requirement is also met in some special aspects. The time interval can be obtained as the release time. &. Disengaging time (for a given function)
The time interval from the moment the excitation quantity (for the electrical appliance is a characteristic) value changes (the change will cause the relay to exit) to the moment the relay exits. 8.B. Return time jesettingtimt
(for real function)
the time from the moment the input (for the reverse device) produces a specified change in the value (the change will cause the device to share) to the moment the relay stops returning to the relay. Synonym, return time
8-9. Recovery time
for the contacts of the circuit, the time from the first closure of the contact circuit (the time from the moment the contact circuit is fully closed or disconnected) to the moment the contact circuit is fully closed or disconnected. 8-10. Specified time
as a time limit specified by the device. 8.11. Sequence time
for the device of the time limit, the predetermined width of the circuit action (opening and closing) in time. 8.12. Setting value of a timing limit specifiedtimeUnder specified conditions, the given time
the actual value of the timing limit actual valuesurrifiuditn8. 13
the time limit value obtained under specified conditions. 814 setting value range of specified time limit,
8-15 setting value ratio of specified time limit setting ratio nf a 6specificiel limne The ratio of the maximum setting value of the time limit to its minimum setting value. 8.16 Maximum reset time xinumresettingtime For a given function, the maximum time from the time when the microexcitation device allows the relay to reset to the moment when the device is disconnected. 8.17 Recovery time recoverytime
For a given function under specified conditions, it is the time required for the device to recover from the operating state so that the next operating time is within a given percentage of the previous measurement. 8.18 Bridging time bridgingtime
For a make-before-break transfer point, the time from the moment when one contact circuit is closed to the moment when the other contact circuit is opened.
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