35kV Overvoltage Protector TBP-B-35-Shanghai Gaosuo Electrical Co., Ltd.

TBP-B-35 35kV overvoltage protector is a three-phase combination arrester for switchgear, specially designed to protect vacuum switches, capacitor banks and other equipment from switching overvoltage damage. Its core advantage is the adoption of four-star connection method, can effectively limit both inter-phase and phase-to-earth overvoltages simultaneously, one unit equivalent to six ordinary arresters. The product complies with GB11032, JB/T10496 and other national standards.

TBP-B-35 35kV Cabinet Three-phase Combination Overvoltage Protector

Product Overview

TBP series 35kV cabinet three-phase combination overvoltage protectors (three-phase combination arresters) are a new type of overvoltage protector used to protect the insulation of power equipment from overvoltage damage, with the characteristic of limiting phase-to-earth overvoltages while also effectively limiting inter-phase overvoltages, which ordinary arresters cannot achieve. The product is widely used for protecting vacuum switches, rotating motors, shunt compensation capacitors, power plants, substations and other locations. Three-phase combination overvoltage protectors have been in operation for many years, and practice has proven to be a practical and effective measure for limiting inter-phase overvoltages. One combination protector can serve the function of six ordinary arresters. Since the protector uses large-capacity zinc oxide resistor discs as the main component internally, it has good volt-ampere characteristics and overvoltage absorption capability, providing reliable protection for protected equipment, and is well received by the power system.

Due to some particularities of China's medium voltage power grids (3kV～66kV), conventional medium voltage arresters are not sensitive to such overvoltages and cannot provide protection. With the increasingly widespread use of vacuum switches, various operating voltages caused by their strong interrupting capability have raised new challenges for the protection of power equipment. Combination overvoltage protectors were developed precisely to solve this problem. This type of product adopts a four-star connection method (commonly known as the trident connection method), setting a common neutral point, which can greatly reduce inter-phase overvoltages while also substantially improving the phase-to-earth protection level, truly achieving effective limitation of vacuum switch operating overvoltages. FAURE Gaosuo Electric Co., Ltd. produces and sells products with composite insulation, compact structure, fully enclosed integral vulcanization molding. High-quality metal oxide valve plates and self-blowing special gaps are selected, with high operating characteristics, safety and convenience. It is particularly suitable for use with different models of medium voltage complete switchgear such as KYN, XGN, GBC, JYN, GZS, or can be directly installed in small compact substations. This TBP-B-35 35kV overvoltage protector is a key device for ensuring the stable operation of power systems.

Applicable Standards

TBP series 35kV cabinet three-phase combination arrester products comply with national standards GB11032-2000 "AC Gapless Metal Oxide Arresters", JB/T10496-2005 "AC Three-phase Combination Gapless Metal Oxide Arresters", ZBK49005-90 "Gapped Metal Oxide Arresters for AC Systems", JB/T8459-2006 "Arrester Product Model Designation Method".

Product Appearance

Internal structure diagram of 35kV overvoltage protector, showing its compact design.

Voltage level	Application place	Application environment	TBP protector standard model	No gap type				Gap type			Nominal residual voltage(kV)
				Rated voltage of protector (kV) RMS	Continuous operating voltage of protector (kV)	DC 1mA reference voltage (kV) (not less tdan)	Maximum leakage under 0.75 times DC 1mA voltage (μA)	Power frequency discharge voltage (kV) (not less tdan)	1.2/50 impulse discharge voltage (kV) peak (not more tdan)	Maximum conducting current (μA)	8/20 lightning impulse current peak (not more tdan)	30/60 switching impulse current peak (not more tdan)	2000μS square wave flow capacity (A)	4/10 high current witdstand capability (kV)
				Phase to phase / Phase to ground (only one number means tde parameters of phase to phase and phase to ground are tde same)
3KV	Type A for motor	Indoor	TBP-A-3.15/85	4	3.15	7.0/5.7	50	-	-	-	11.5/9.5	9.4/7.6	400	65
			TBP-A-3.15/131	4	3.15	7.0/5.7	50	-	-	-	11.8/9.5	9.4/7.6	400/200	65/40
			TBP-A-3.8F/85	3.8	-	-	-	7.5	9.5	20	9.5	7.6	400	65
			TBP-A-3.8F/131	3.8	-	-	-	7.5	9.5	20	9.5	7.6	400/200	65/40
		Outdoor	TBP-A-3.15/100W1	4	3.15	7.0/5.7	50	-	-	-	11.5/9.5	9.4/7.6	400	65
			TBP-A-3.15/280W2	4	3.15	7.0/5.7	50	-	-	-	11.8/9.5	9.4/7.6	400	65
			TBP-A-3.8F/100W1	3.8	-	-	-	7.5	9.5	20	9.5	7.6	400	65
			TBP-A-3.8F/280W2	3.8	-	-	-	7.5	9.5	20	9.5	7.6	400	65
	Type B for general substation use	Indoor	TBP-B-3/85	5	4	7.0/5.7	50	-	-	-	13.5	11.5	400	65
			TBP-B-3/131	5	4	7.0/5.7	50	-	-	-	13.5	11.5	400/200	65/40
			TBP-B-3.8F/85	3.8	-	-	-	8	12	20	12	10.2	400	65
			TBP-B-3.8F/131	3.8	-	-	-	8	12	20	12	10.2	400/200	65/40
		Outdoor	TBP-B-3/100W1	5	4	7.0/5.7	50	-	-	-	13.5	11.5	400	65
			TBP-B-3/280W2	5	4	7.0/5.7	50	-	-	-	13.5	11.5	400	65
			TBP-B-3.8F/100W1	3.8	-	-	-	8	12	20	12	10.2	400	65
			TBP-B-3.8F/280W2	3.8	-	-	-	8	12	20	12	10.2	400	65

6KV	Type A, for motor	Indoor	TBP-A-6.3/85	8	6.3	14.0/11.2	50	-	-	-	23.0/18.7	18.7/15.0	400	65
			TBP-A-6.3/131	8	6.3	14.0/11.2	50	-	-	-	23.0/18.7	18.7/15.0	400/200	65/40
			TBP-A-7.6F/85	7.6	-	-	-	15	18.7	20	18.7	15	400	65
			TBP-A-7.6F/131	7.6	-	-	-	15	18.7	20	18.7	15	400/200	65/40
		Outdoor	TBP-A- 6.3/100W1	8	6.3	14.0/11.2	50	-	-	-	23.0/18.7	18.7/15.0	400	65
			TBP-A- 6.3/280W2	8	6.3	14.0/11.2	50	-	-	-	23.0/18.7	18.7/15.0	400	65
			TBP-A- 7.6F/100W1	7.6	-	-	-	15	18.7	20	18.7	15	400	65
			TBP-A- 7.6F/280W2	7.6	-	-	-	15	18.7	20	18.7	15	400	65
	Type B, universal for substation	Indoor	TBP-B-6/85	10	8	15.0/14.4	50	-	-	-	27	23	400	65
			TBP-B-6/131	10	8	15.0/14.4	50	-	-	-	27	23	400/200	65/40
			TBP-B-7.6F/85	7.6	-	-	-	16	24	20	24	20.4	400	65
			TBP-B-7.6F/131	7.6	-	-	-	16	24	20	24	20.4	400/200	65/40
		Outdoor	TBP-B- 6/100W1	10	8	15.0/14.4	50	-	-	-	27	23	400	65
			TBP-B- 6/280W2	10	8	15.0/14.4	50	-	-	-	27	23	400	65
			TBP-B- 7.6F/100W1	7.6	-	-	-	16	24	20	24	20.4	400	65
			TBP-B- 7.6F/280W2	7.6	-	-	-	16	24	20	24	20.4	400	65

10kV	Type A for Motor	Indoor	TBP-A-10.5/85	13.5	10.5	23.2/18.6	50	-	-	-	38.0/31.0	31.0/25.0	400	65
			TBP-A-10.5/131	13.5	-	23.2/18.6	50	-	-	-	38.0/31.0	31.0/25.0	400/200	65/40
			TBP-A-12.7F/85	12.7	-	-	-	25	31	20	31	25	400	65
			TBP-A-12.7F/131	12.7	10.5	-	-	25	31	20	31	25	400/200	65/40
		Outdoor	TBP-A-10.5/100W1	13.5	10.5	23.2/18.6	50	-	-	-	38.0/31.0	31.0/25.0	400	65
			TBP-A-10.5/280W2	13.5	-	23.2/18.6	50	-	-	-	38.0/31.0	31.0/25.0	400	65
			TBP-A-12.7F/100W1	12.7	-	-	-	25	31	20	31	25	400	65
			TBP-A-12.7F/280W2	12.7	13.6	-	-	25	31	20	31	25	400	65
	Type B for Substation General	Indoor	TBP-B-10/85	17	13.6	25.0/24.0	50	-	-	-	45	38.3	400	65
			TBP-B-10/131	17	-	25.0/24.0	50	-	-	-	45	38.3	400/200	65/40
			TBP-B-12.7F/85	12.7	-	-	-	26	41	20	41	35	400	65
			TBP-B-12.7F/131	12.7	13.6	-	-	26	41	20	41	35	400/200	65/40
		Outdoor	TBP-B-10/100W1	17	13.6	25.0/24.0	50	-	-	-	45	38.3	400	65
			TBP-B-10/280W2	17	-	25.0/24.0	50	-	-	-	45	38.3	400	65
			TBP-B-12.7F/100W1	12.7	-	-	-	26	41	20	41	35	400	65
			TBP-B-12.7F/280W2	12.7	13.6	-	-	26	41	20	41	35	400	65
	Type C for Capacitor	Indoor	TBP-C-10/85	17	13.6	25.0/24.0	50	-	-	-	46	35	400	65
			TBP-C-10/131	17	-	25.0/24.0	50	-	-	-	46	35	400/200	65/40
			TBP-C-12.7F/85	12.7	-	-	50	26	41	20	41	33	400	65
			TBP-C-12.7F/131	12.7	13.6	-	-	26	41	20	41	33	400/200	65/40
		Outdoor	TBP-C-10/100W1	17	13.6	25.0/24.0	-	-	-	-	46	35	400	65
			TBP-C-10/280W2	17	-	25.0/24.0	50	-	-	-	46	35	400	65
			TBP-C-12.7F/100W1	12.7	-	-	50	26	41	20	41	33	400	65
			TBP-C-12.7F/280W2	12.7	7.69	-	-	26	41	20	41	33	400	65
	Type O for Neutral	Neutral	TBP-O7.6F	10.5	40.8	11.4	-	-	-	-	19	15.9	400	65

Typical application scenario of 35kV overvoltage protector in switchgear.

35kV	Type B (General for Substation)	Indoor	TBP-B-35/200	51<,/TD>	40.8	84/73	50	-	-	-	150/134	134/114	400	65
			TBP-B-35/310	51	-	84/73	50	-	-	-	150/134	134/114	400	65
			TBP-B-42F/200	42	-	-	-	80	124	20	124	105.4	400	65
			TBP-B-42F/310	42	40.8	-	-	80	124	20	124	105.4	400	65
		Outdoor	TBP-B-35/400W1	51	40.8	84/73	50	-	-	-	150/134	134/114	400	65
			TBP-B-35/630W2	51	-	84/73	50	-	-	-	150/134	134/114	400	65
			TBP-B-42F/400W1	42	-	-	-	80	124	20	124	105.4	400	65
			TBP-B-42F/630W2	42	40.8	-	-	80	124	20	124	105.4	400	65
	Type C (For Capacitor)	Indoor	TBP-C-35/200	51	40.8	84/73	50	-	-	-	150/134	122/105	400	65
			TBP-C-35/310	51	-	84/73	50	-	-	-	150/134	122/105	400	65
			TBP-C-42F/200	42	-	-	-	80	124	20	124	100	400	65
			TBP-C-42F/310	42	40.8	-	-	80	124	20	124	100	400	65
		Outdoor	TBP-C-35/400W1	51	40.8	84/73	50	-	-	-	150/134	122/105	400	65
			TBP-C-35/630W2	51	-	84/73	50	-	-	-	150/134	122/105	400	65
			TBP-C-42F/400W1	42	-	-	-	80	124	20	124	100	400	65
			TBP-C-42F/630W2	42		-	-	80	124	20	124	100	400	65

Technical Parameters

Parameter Name	Parameter Value	Unit
System Nominal Voltage	35	kV
Protector Continuous Operating Voltage	40.5	kV
DC 1mA Reference Voltage	≥73	kV
Nominal Discharge Current Residual Voltage	≤134	kV
Inter-phase Overvoltage Protection Level	-	-

Parameter Name

Parameter Value

Unit

System Nominal Voltage

Protector Continuous Operating Voltage

40.5

DC 1mA Reference Voltage

≥73

Nominal Discharge Current Residual Voltage

≤134

Inter-phase Overvoltage Protection Level

Product Advantages and Features

This TBP-B-35 35kV cabinet three-phase combination overvoltage protector adopts the advanced four-star connection method, can suppress both inter-phase and phase-to-earth overvoltages simultaneously, with protection effect far exceeding ordinary arresters. Its composite insulation fully sealed structure ensures long-term reliable operation in compact spaces such as switchgear. As a highly efficient three-phase combination arrester, it is particularly suitable for complex overvoltage environments caused by vacuum switch operation, making it an ideal choice for improving the safety of 35kV distribution systems.

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