JB/T 3283-1983 Thyristor AC power controller (thyristor voltage regulator, power regulator part)
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T3283
赣袂·
1983-09-20
1984-03-01小鎖bzxZ.net
驚魁瓦彤藝极
鸡驚魁鹿瓦彤藝
1 Scope of Application
驚袂·
JB/T32831983
Thyristor (thyristor) AC power controller includes thyristor voltage regulator, power regulator and thyristor AC power switch. All three products are based on non-phase-changing circuits.
Thyristor voltage regulator and power regulator are mainly used for AC dimming, temperature control, speed regulation and other occasions that require continuous use of AC voltage or power regulation.
This standard applies to thyristor voltage regulators and power regulators (excluding household appliances) in thyristor AC power controllers; only special parts are required, and the rest should comply with the relevant provisions of GB3859-83 "Semiconductor Power Converters". 2 Definitions
2.1 Commutation
The transfer of current between two consecutive arms of a thyristor AC power controller. 2.2 Thyristor AC power controller
An AC power controller with thyristors as valve devices. Note: Thyristors can be KP-type thyristor rectifiers, KS-type bidirectional thyristor components, and KN-type reverse-conducting thyristor components. 2.3 Thyristor voltage regulator
A thyristor AC power controller that controls voltage in a phase manner. 2.4 Thyristor power regulator
A thyristor AC power controller that controls power in a cycle-by-cycle manner. 2.5 SCR AC power switch
A thyristor AC power controller that controls the on and off of the thyristor in a random or selective manner. 2.6 Phase control
Control of the starting point of the on-state interval of the device. 2.7 On-state interval of the valve device (T)
The time interval during which the thyristor does not change the direction of conduction (see Figure 1). 2.8 On-state interval of the controller (T.)
Refers to the time interval during which the thyristor power regulator supplies power to the load (see Figure 1). 2.9 Operation cycle (T.)
Refers to the time between the starting points of two consecutive on-state intervals (T) of the thyristor power regulator (see Figure 1). 2.10 Frequency Control JB/T3283 The on-state interval (T,) appears periodically, changing the on-state frequency within a fixed operating cycle. 2.11 Rated Output Capacity (PN) Calculation Formula for Rated Output Capacity Pn=VmUzMI210-3 (kVA) Where: U2M- ...
2.12 Rated load impedance (ZN)
Calculation formula for rated load impedance
2.13 Control current (Ik)
The current applied to the input end of the control circuit of the thyristor AC power controller. 2.14 Full output
Refers to the state in which the thyristor power regulator always supplies power to the load during the operation cycle. 2.t5 Zero output
Refers to the state in which the thyristor power regulator always cuts off power to the load during the operation cycle. 2.16 Output frequency
The frequency of the power supply output by the thyristor power regulator to the load during operation. 2.17 Misconnection
The phenomenon of the valve or arm being turned on at an incorrect moment. 2.18 Loss of connection
The phenomenon that the valve or arm fails to turn on correctly at the required moment during the conduction period of positive belt operation. 3 Types and basic parameters
3.1 Product models shall comply with the provisions of the "Semiconductor Power Converter Model Compilation Method". 2
8.2 Model representation is shown in Figure 2.
JB/T3283
3.3 Main wiring methods and codes of the product main circuit are shown in Figure 3. 1983
War set type code
indicates control instrument with simple indication +
indicates control instrument with record;
indicates control instrument with program setter and record.
Main circuit connection method code **, 0, 1, 2, 3, 4, 5 (see Article 3.3 of this standard for wiring code).
Specification code, numerator indicates output capacity (kVA), denominator indicates number of phases × line voltage.
indicates the resistive load of the voltage regulator:
indicates the inductive load of the voltage regulator:
design serial number
cooling method
indicates the resistive load of the power regulator:
indicates the inductive load of the power regulator.
indicates air cooling,
indicates air cooling,
indicates water cooling.
special code of thyristor converter power controller. * The specific model and specification of the control instrument shall be determined by the user and the manufacturer through negotiation. The complete set type code is not written for instruments without digging. ** Considering that there is only one wiring method for the single-phase main circuit, this code can be omitted. 4
Single-phase circuit, bidirectional control
JB/T32831983
Main circuit name and wiring method
Three-phase four-wire circuit, bidirectional control
Two-phase delta circuit, bidirectional control
Three-phase three-wire circuit, bidirectional control
Three-phase three-wire circuit, two-wire bidirectional control
Three-phase three-wire circuit, unidirectional control reverse conduction Figure 3
JB/T32831983
3.4 Model example
A single-phase 220V, 10kVA resistive load self-cooling thyristor voltage regulator without a control instrument is model KTA1-10/1×220.
The single-phase 380V, 16kVA resistive load self-cooling thyristor voltage regulator with simple indication control instrument is model KTA1- 16/1 × 380 ~ A.
The three-phase 380V, 150kVA, resistive load water cooling, three-phase four-wire circuit bidirectional control thyristor power regulator with program setter and recording control instrument is model KTS3-150/3×380-1C. 3. 5 Basic parameters
The basic parameters of the thyristor voltage regulator are specified in Table 1. Table 1
Rated output capacity
Rated input voltage Output voltage (U)
(Uis), V
(effective value)
(effective value)
0~ 215
We~372
Rated output current
(effective value)
Control current
Control circuit configuration
JB/T32831983
3.5.2 The basic parameters of the thyristor power regulator shall be as specified in Table 2. Table 2 Rated output capacity Rated input voltage (UN), V (effective value) Rated output voltage Rated output current (UN), V (effective value) Rated output capacity in Table 1 and Table 2 can be extended according to the R1 priority number system. 3.6 Allowable range of load impedance 3.6.1 0.95~20Zn for thyristor voltage regulator. 3.6.2 0.95~10Zz for thyristor power regulator. 3.7 Within the allowable range of load impedance variation, the upper and lower voltage tolerances are 6
Power adjustment range
0 ~ 40
Control current
Control circuit input
JB/T32831983
8.7.1 The lower limit tolerance of the output voltage of the thyristor voltage regulator is +3% of the rated input voltage, and the upper limit tolerance is -1% of the rated input voltage.
3.7.2 The rated output voltage tolerance of the thyristor power regulator is -1% of the rated input voltage. 3.1.3 The tolerance of the three-phase output voltage value is calculated based on the average value of the three-phase output voltage. 4 Technical requirements
4.1 Normal use conditions
Normal use conditions shall comply with the provisions of GB3859-83. If the above conditions are exceeded, the user and the manufacturer shall negotiate and determine: 4.2 Grid impedance
When two products are running on the same grid and the grid impedance is less than 1% of the equivalent load impedance of the two products, the normal operation of the products will not be affected due to mutual interference.
4.3 Three-phase voltage imbalance under the condition of rated power supply voltage and balanced three-phase load 4.3.1 When the two-phase power regulator is at full output, the difference between the output voltage of any phase and the average value of the three-phase output voltage shall not exceed 2% of the rated input voltage.
The difference between the output voltage of any phase and the average value of the three-phase output voltage of the three-phase voltage regulator shall not exceed 3% of the rated input voltage. 4. 3.2
4.4 Limit temperature rise
Under normal use conditions, the limit temperature rise of each part of the thyristor AC power controller shall comply with the provisions of Table 3. Table 3
Thyristor housing
Fast fuse
Screw fixing of copper busbar
Resistor element
4.5 Efficiency
Limit temperature rise
Housing (table) temperature See JB2594-7980
45℃ (bare copper)
55℃ (with tin or pot coating)
70℃ (with silver coating)
25℃ (air 3mm from the surface)
Measurement method
Thermocouple method or thermistor
Thermocouple method or thermistor and thermometer method
The efficiency should comply with the contract requirements. The efficiency should be assessed under rated conditions and with the load power factor cos=1. The total loss during the assessment should include the loss caused by all electrical, electronic and cooling components in the product. 4.6 Regulation characteristics
4.6.1 Regulation range and regulation characteristics of thyristor voltage regulator4.6.1.1 Regulation range: When the output voltage of the thyristor voltage regulator is at the lower limit, the control current shall not be greater than 5% of its upper limit; when the output voltage is at the upper limit, the control current shall not be less than 95% of its upper limit. 4.6.1.2 Regulation characteristics: The relationship curve U=f(I) between the output voltage U and the control current I of the thyristor voltage regulator is required to be continuous and smooth. Within the input control current range of 20% to 80%, the change in the corresponding output voltage for every 10% change in the control current shall not be less than 5% and shall not be greater than 20% of the rated input voltage.
4.6.2 Regulation range and regulation characteristics of thyristor power regulator4.6.2.1 Regulation range: When the thyristor power regulator is at zero output, the control current I shall not be greater than 10% of its upper limit; when the thyristor power regulator reaches full output, the control current I shall not be less than 90% of its upper limit. JB/T32831983
4.6.2.2 Power regulation characteristics: The relationship curve between the output frequency and the control current I of the thyristor power regulator, n=f(I), is required to be continuous and smooth. Within the control current range of 20% to 80%, the corresponding output frequency change should be no less than 5% and no more than 20% of the full output frequency for every 10% change in the control current.
4.7 The product should be able to withstand the following various overvoltages 4.7.1 Switching operation overvoltage when connected to the power grid. 4.7.2 Overvoltage generated when the fuse is disconnected. 4.8 Protection link
4.8.1 When the overload current reaches the specified value of the contract or product design, the overcurrent protection link should be able to operate correctly. 4.8.2 When the load is short-circuited, the fuse should effectively protect the valve device. After eliminating the fault and connecting a new fuse, the product should be able to resume normal operation.
4.8.3 The cooling system should have abnormal alarm or protection measures. 4.9 Light load test
The purpose of the light load test is to check whether the connection and assembly of the product is correct and adjust each link to make the product comply with the relevant provisions of this standard. 4.10 Insulation requirements
The insulation requirements of the product shall comply with the provisions of GB3859-83. 4.11 Water cooling requirements
When water cooling is adopted, the water quality, water temperature and flow rate shall comply with the provisions of Article 6, Paragraph 2 of the Ministry Standard JB1144-75 "KP type thyristor element (KP type silicon thyristor)". The water system shall not leak under 2 times the rated water pressure for 5 minutes. 4.12 Warranty period
If the user complies with the relevant storage, use, installation and operation provisions of the instruction manual, within 12 months from the date of installation, but not more than 18 months from the date of shipment from the manufacturer, if the product is damaged or cannot work normally due to poor manufacturing, the manufacturer shall be responsible for repairing or replacing product parts for the user free of charge.
5 Test methods and acceptance rules
5.1 Test classification
Tests are divided into factory tests and type tests. 5.1.1 Type test: It is a test to comprehensively evaluate product quality and performance and verify whether the product meets the technical requirements. Type tests should be carried out in the following cases:
9. New products produced on trial
b. When the design of the product affects the performance of the product due to changes in the process or the materials used; c. When products that are not frequently produced are produced again; d. For mass-produced products, random tests should be carried out every two years. The number of products to be sampled shall not be less than two. If any item fails during the test, it shall be returned for retesting. If it still fails the retest, the batch of products shall be considered unqualified and production can only continue after the defects are eliminated and the test is passed. 5.1.2 Factory test: In order to evaluate the performance of the product and ensure that the product performance meets the corresponding test requirements in the type test, the assembled products must be subjected to factory test one by one. After passing the factory test, a factory test certificate shall be issued. During the factory test, if one item fails to meet the specified requirements, it shall be returned for retesting. The test certificate can only be issued if it passes the retest. 5.2 Factory test and type test items shall comply with the provisions of Table 4. 8
Test items
Insulation test
Light load test
Temperature rise test
Efficiency determination
Overvoltage test
Overload protection
Load short circuit test
Cooling system protection
Three-phase unbalance
Voltage regulation range
Voltage regulation characteristics
Power regulation range
Power regulation characteristics
Mutual interference
Type test
Note: ",\must be done items.
②"()"Tests shall be carried out when specified in the contract. 5.3 Insulation test
Insulation test shall be in accordance with the provisions of GB3859-83. 5.4 Light load test
JB/T3283
Out! Test
The load impedance of the light load test is not more than 10ZN5.5 Temperature rise test
Assessment clause
Test clause
Carry out temperature rise test with rated load under rated voltage and normal use conditions. Measure the temperature rise with resistance method or point thermometer method after 4 hours of continuous operation. Products greater than 200kVA are allowed to be tested for load operation on site. 5.6 Efficiency determination
Standard efficiency =
Rated output power
×100%
Rated output power + all standard losses9
5.1 Overvoltage test
Measured efficiency
JB/T32831983
Rated output power
×100%||tt ||Input power at rated output power
On a power supply with 110% of the rated input voltage, connect the product to a load that meets the light load requirements, and put the product's control circuit in the disconnected state. Perform five closing and disconnection tests. Use an oscilloscope to monitor during the test. No voltage or current is allowed to appear on the load each time the switch is closed. After the test, the product should be able to operate normally.
5.8 Overload protection test
First, put the product in a light load state and then use the switch to suddenly increase the load current to the value specified in Article 4.8.1 of this standard (a simulated overload signal can also be sent to the control circuit) to assess whether the overcurrent protection system can operate correctly. 5.9 Load short-circuit test
The test power supply should meet normal use conditions, and the short-circuit current should not be greater than the breaking capacity of the fast fuse used. After 1 hour, After light cutting, the load is suddenly short-circuited through the switch. The fast fuse should effectively protect the thyristor component. After the test, replace it with a fast fuse of the same specification, and the product should be able to work normally. 6.10 Cooling system protection test
Under normal cooling conditions, the water or air is suddenly cut off. Observe whether the abnormal alarm or protection of the cooling system is effective. 5.11 Three-phase imbalance test
Test the three-phase imbalance under rated input voltage, balanced load and light load conditions. 5.12 Regulation characteristic test
Under light load conditions, test according to the circuit in Figure 4 (one phase is shown). kr
KT-thyristor AC power controller: ~-AC power supply, Z-load impedance (should comply with the provisions of Articles 3 and 6 of this standard), DCT-adjustable DC power supply (output current 0 ～10mA), V,—AC voltmeter 1mA—DC milliammeter C—output data measuring instrument (oscilloscope and digital frequency meter for power regulator, AC effective value voltmeter for voltage regulator) 5.13 Mutual interference test
Under rated load conditions, (when the grid capacity is limited and reaches the provisions of Article 4, the test is allowed to be carried out under light load conditions) test according to the circuit in Figure 5.
JB/T3283
KT1, KT,—crystalline tube AC power controller ＇Ri, Rz—load resistance, CYi, CYz—output data measuring instrument grid impedance
Test steps,
Make two crystalline tube AC power controllers connected to the same grid together; a
b. Make KT,At 25%, 50%, 75% output voltage or output frequency; c. Adjust KT, and observe the effect on KT,.
For thyristor voltage regulator products, during the adjustment process of KT, from the lower limit to the upper limit, the change of KT, output voltage shall not exceed 5% of the rated input voltage.
For thyristor power regulator products, during the adjustment process of KT,, observe with an oscilloscope that KT, output does not cause false connection or disconnection due to interference.
6 Marking, packaging, transportation and storage
The thyristor AC power controller should have a durable and non-corrosive nameplate in a conspicuous position, on which the following marks should be clearly noted. 6.1
Product model:
Rated output capacity (kVA)
Rated input voltage (V),
Frequency (Hz)
Number of phases m2,
Output voltage (rated output voltage*) (V); rated output current (A),
Power adjustment range*
Cooling method:
Load level
Load impedance ()
Product serial number:
Manufacturing date
*The contents that should be noted on the nameplate of the thyristor power regulator. 11
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