TBP-O Type Three-phase Combination Arrester for Motor Neutral Point-Shanghai Gaosuo Electrical Co., Ltd.

TBP-O type three-phase combination arrester for motor neutral point is a protective device used to protect the insulation of rotating motors, vacuum switches and other equipment from overvoltage damage. It adopts four-star connection method, can effectively limit both inter-phase and phase-to-earth overvoltages simultaneously, one unit can replace six ordinary arresters. The product adopts composite insulation fully enclosed structure, complying with GB11032, JB/T10496 and other national standards.

TBP-O Type Three-phase Combination Arrester for Motor Neutral Point

Product Overview

TBP series three-phase combination overvoltage protectors for neutral point (three-phase combination arresters) are a new type of protective device used to protect the insulation of power equipment from overvoltage damage. This TBP-O type three-phase combination arrester for motor neutral point has the characteristic of limiting phase-to-earth overvoltages while also effectively limiting inter-phase overvoltages, which is something 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. The TBP-O type three-phase combination arrester for motor neutral point was 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.

Applicable Standards

TBP-O Type Three-phase Combination Arrester for Motor Neutral Point 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".

Outline Dimensions

Main Technical Parameters

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

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

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